" landing-cards-prop="{"getGk":[{"Title":"What is difference between BL and BD coils?","UrlName":"FA276449","LastModifiedDate":"12/07/2023","score":1.1630344827586208,"firstpublisheddate":"16/12/2015","answer":"The difference between BL and BD Coils is a BL coil has a lower power consumption which is good for a contactor ONLY (no auxiliaries attached). Wherefore a BD coil has a normal power consumption but has the capability to use auxiliaries.

 "},{"Title":"How to download Schneider Electric CAD files?","UrlName":"FA372855","LastModifiedDate":"06/05/2026","score":1.1343050847457627,"firstpublisheddate":"03/04/2019","answer":"

> If you know the product part number, type it into the website search bar at the top of the page and click through to the product datasheet page. You can now skip to step 6...
 
> If you don't know the product part number, you can navigate to the product page like this...
1) Visit the Schneider Electric Website: se.com/au
2) Click the 'Products' TAB in the main menu.
3) Click 'Circuit Breakers & Switches' (or any other category).
 
4) Click 'Compact NSXm' (or any other product range).
 
5) Click 'LV426100' (or any other product part number).
 
6) You should now see all technical information about the specific product part number.
(You should be on a page like this: www.se.com/au/en/product/LV42600/ )
7) Click the 'CAD file' button.
 
8) A pop-up window will appear. Select the preferred CAD file format from the right.
 
9) Click the 'Download' button
 
10) You will need to log into your Traceparts online account (or 'Sign up' for a free account).
11) Wait around 10 to 20 Seconds for Traceparts to create a ZIP file for you.
12) Click 'Download' to start the download process.
13) Open the ZIP file to extract the CAD files you need.
 

"},{"Title":"How do I access the Tools Page in eDLT","UrlName":"FA236090","LastModifiedDate":"26/03/2026","score":1.0543333333333333,"firstpublisheddate":"03/12/2014","answer":"Press and hold down the bottom left button, whilst continuing to hold then double press the top right button.
Please note that access to the Tools Page can be disabled using C-Bus Toolkit software."},{"Title":"Why choose Type B RCD for 3 Phase Variable Speed Drives?","UrlName":"FAQ000184975","LastModifiedDate":"21/05/2026","products":"Acti 9 iID","score":1.0533333333333332,"firstpublisheddate":"09/03/2021","answer":"

For the 3 Phase Variable Speed Drives, the RCD type B or type B-Si is particularly suitable.
It protects against fault currents with DC offset, which is true for three-phase power converters. In addition, it has enhanced immunity against nuisance tripping caused by:

\n

• EMC common mode filters connected upstream VSD.
  Type B has a tripping delay allowing the inrush current to flow on power up.
• The permanent switching leakage currents existing in power converters (ex: 25kHz).
  Type B includes a "low pass" filter to ensure a trigger threshold that increases with frequency while complying with the personal protection curve (fibrillation).

\n

Please note: if the required sensitivity is 300mA, Selective type RCD should be proposed ensuring a non-triggering time of 50ms. 

\n

More information can be found on the Earth Fault Protection guide: https://download.schneider-electric.com/files?p_enDocType=Catalog&p_File_Name=CA908066E+%28web%29.pdf&p_Doc_Ref=CA908066E

With regards to installation of these RCDs, they are mounted upstream of the Variable Speed Drives.

See below example

 

Schneider Electric offers Acti9 iID range of 4 Pole RCDs type B available in 30 mA sensitivity and type B-Si available in 30 and 300 mA sensitivity (Selective type is available)

 


Click this link below to view the complete range of Acti9 iID RCDs available in Australia: https://www.se.com/ww/en/product-country-selector/?pageType=product-range&sourceId=7559&N=781354987+3098582207+2355967283+39384534

"},{"Title":"How can I cable to the PNP and NPN type outputs for sensors / detectors, using the wiring diagram?","UrlName":"FA23633","LastModifiedDate":"03/07/2025","score":1.028,"firstpublisheddate":"28/09/2010","answer":"\n\n\n\n\n\n\n\n\n\n\n\n\n"},{"Title":"What is the selection criterion of Circuit Breakers for the Capacitor bank application.","UrlName":"FAQ000193301","LastModifiedDate":"28/02/2026","score":1.024,"firstpublisheddate":"23/04/2010","answer":"\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n"},{"Title":"What are the effects of dV/dt on a Motor when using a VSD?","UrlName":"FAQ000134179","LastModifiedDate":"15/10/2021","products":"AC Drives and Soft Starters","score":1.02,"firstpublisheddate":"08/02/2021","answer":"As there is an impedance mismatch at the termination of the motor cable to the motor, there will be a reflected wave which travels back along the motor cable causing
overvoltage’s. Overvoltage’s on the motor terminals can cause both partial and corona discharge which eventually wears down the winding insulation to failure. 

Corona discharge occurs when the overvoltage is large enough to cause electrons to flow from one winding to another whilst ionising the air between the conductors. They cause damage to the internal and external insulating material respectively. As the motor cable length increases the peak voltage increases. This can increase to a value of 2 to 2.5 times the DC bus voltage. 

Schneider Electric Offer Sinus filters or dv/dt filters to reduce the overvoltage across windings and high frequency currents in differential mode. Check out our current ATV600 or ATV900 catalogue for more information on output filters to help you with overvoltage mitigation.

"},{"Title":"Why is their no display on the VIP400 relay","UrlName":"FAQ000269937","LastModifiedDate":"16/12/2024","products":"RM6","score":1.004,"firstpublisheddate":"15/12/2024","answer":"

Please note, the VIP400 is a stand alone protection relay powered by its current sensors - when current is present in the MV network, the protections and the display work and it is possible to enter settings and view measurements - the VIP operates at a pickup current value as mentioned in the table below.

\n

\n

 

\n

When no current is flowing through the circuit breaker or when the current is too low, the VIP is off and nothing appears on its display. If current appears, the protection functions are activated and trip the circuit breaker or not, according to the settings. The additional time for the VIP relay to start when current appears is called the pick up time and is mentioned in the table below. 

\n

\n

 

\n

 

\n

 

\n

 

\n

 

"}],"getPv":[{"Title":"Video: Connecting EcoStruxure Control Expert PLC simulator to EcoStruxure Operator Terminal Expert simulation","UrlName":"FAQ000281768","LastModifiedDate":"29/05/2026","products":"EcoStruxure™ Control Expert, EcoStruxure™ Operator Terminal Expert","score":null,"firstpublisheddate":"29/05/2026","answer":"

This video covers how to establish a connection between Control Expert PLC simulator and Operator Terminal Expert on one PC for testing. 

\n

"},{"Title":"Video: What is Modbus Tester and how do I use it?","UrlName":"FA180037","LastModifiedDate":"13/05/2026","products":"Integrated Power & Energy Management Software, Meter Configuration Utilities, Communications, Multi-circuit Power and Energy Meters, Basic Multifunction Power and Energy Meters, Advanced Power Quality Meters","score":0.9476910629589412,"firstpublisheddate":"04/10/2012","answer":""},{"Title":"Video: How to connect and activate a PT100 thermal sensor in the Altivar ATV600 variable speed drive","UrlName":"FA325618","LastModifiedDate":"12/05/2026","products":"Altivar Process ATV600","score":null,"firstpublisheddate":"13/09/2017","answer":"

A PT100 thermal sensor can be connected to the Altivar Process ATV600 to monitor motor or application temperature and enable additional protection or control functions.
The following video demonstrates how to connect and activate a PT100 sensor:

\n

The tutorial explains how to:

\n

Physically connect the PT100 sensor to the drive’s input
Configure the appropriate analog or dedicated temperature input
Activate the thermal monitoring function
Assign the sensor to the relevant protection or control parameter
Check correct operation of the measured temperature

"},{"Title":"Video: How to perform a cold start and brain dead on Smart-UPS","UrlName":"FA156611","LastModifiedDate":"22/04/2026","products":"APC Smart-UPS, APC Smart-UPS On-Line","score":1.0030456852791878,"firstpublisheddate":"10/08/2012","answer":"Issue:
This document explains how to perform the Cold Start and Brain Dead procedures.

Product Line:
Smart-UPS

Environment:
All models, all serial numbers

Cause:
The Cold start procedure is used to determine if a UPS is functional if it will not turn on when plugged into utility power.
The Brain Dead procedure performs a hard reset of the Smart-Ups microprocessor. It does not however reset saved preferences.

Resolution:

Cold Start:
This is a great way to establish if a UPS will not turn on due to bad input power. Never use a Cold Start to troubleshoot a bad battery LED as it will clear the light most every time even if the battery is actually bad. This is because the self-test is comparing the battery health compared to the load attached. If there is no load attached, the battery will appear healthy.
 
1) Turn off and unplug the Smart-UPS from wall. Remove any attached load.
2) Press and hold the power button (labeled ""I/TEST"" on legacy non-LCD screen units) on the front of the UPS until you hear a LONG beep.
3) Let go DURING the long beep. If you let go after the beep ends you will need to try again.
4) UPS should go through its' normal self test and end up on battery with 4 beeps every 30 seconds. This shows that the UPS is functioning correctly and can both pass a self test and function on battery.
5) You can now plug your UPS back into the wall. If the input power is acceptable the UPS will transfer back online.

If your UPS will not cold start, it either means that the UPS has suffered an internal hardware failure or that it does not have a functional internal battery.
Please contact APC Technical support for further assistance.

The following video demonstrates how to perform a Cold Start on a SUA series Smart-UPS:




Brain Dead:
If you have an SUA or SUM unit, you can use this procedure to switch between Serial and USB communications. It forces a "reboot" of the internal microprocessor, but it will not erase any stored settings.
Useful for basic troubleshooting as it resets the logic of the UPS. 
 
For SU, SUA, SUM, or SURT Units:
1) Turn off and unplug UPS from wall
2) Press and hold the OFF button again (Alternately, you could disconnect the internal battery)
3) You may see a quick flash of the LED's and you should hear an audible ""click"" from the UPS.
4) Plug UPS back into the wall and turn UPS back on
 
For SMC, SCL, SMT, SMTL, SMX, and SRT Units:
1) Turn off and unplug UPS from wall
2) Disconnect Battery
3) You may hear an audible ""click"" from the UPS.
4) Reconnect battery, plug unit back in the wall, and turn UPS back on

The following video demonstrates how to perform a Brain Dead Reset on a SMT, SMTL & SMX series Smart-UPS:



The following video demonstrates how to perform a Brain Dead Reset on a SUA series Smart-UPS:



The following video demonstrates how to perform a Brain Dead Reset on a SRT series On-Line Smart-UPS:

"},{"Title":"Video: Installing Current Transformers - CT orientation with regard to either \"H1\" designation, Arrow, or White Dot","UrlName":"FA203850","LastModifiedDate":"22/04/2026","products":"METSECTSP5A2030U, METSECTSP5A4240U","score":1.0013536379018613,"firstpublisheddate":"27/11/2007","answer":"

Issue
Current transformers should be oriented in a particular direction, with one side pointing toward the source of electricity (upstream or high side), and the other pointing toward the load (downstream or low side)

Product Line
Current Transformers

Environment
Metering and Power Monitoring

Cause
Current Transformers (CT's) may easily installed backwards on their respective load conductors. It saves time and money to ensure that they are installed with the correct orientation before energizing the load.

Resolution
*Warning: Installation and maintenance of this device should only be performed by qualified, competent personnel that have appropriate training and experience with high voltage and current devices. Failure to follow the instructions / warnings in the Meter Installation Guide can result in permanent damage to the meter, severe injury or death.

CT's installed backwards provide inverted signals to the meters to which they are connected. Most meters note the polarity of the signal received from the current transformers, and use that polarity to help determine the direction of the flow of electricity, assigning a positive or negative value to calculated power and energy. It is imperative that current transformers are installed correctly with respect to their orientation on the load conductors that pass through them.

Most current transformers have at least some sort of indicator for orientation on the conductor, usually one of the following ways:

\n\n

1. "H1" - The H1 represents the primary current with a Line facing direction. A current transformer with "H1" printed on one side is usually intending for that H1 to be on the side of the CT when the energy is being provided from, generally referred to as the high side, utility side, line side, or source. These CT's may or may not also have an "H2" representing the side facing the load, or low side.
2. Arrow - there may be an arrow on the current transformer which indicates the flow of power. These CT's should be installed such that the arrow is pointing toward the load to be measured. The Arrow points downstream, the load side, the low side.
3. White Dot - Some CT's may have a white dot, or a dot of another color, like green, blue, or red. The dot only serves as an indication of the side of the current transformer intended to face the source of electricity, or line side, the high side. The dot should face that high side, the source of electricity.

\n\n

Note: Certain low end meters only use an absolute value of the signal coming into the current input, so the orientation is often negligible in those cases. Meters of this type are generally incapable of discerning the difference between energy delivered into the load and energy received back from the load when that load acts as a source of power instead of as a user of power.

 

\n
Square D Current and Voltage Instrument Transformers Catalog"},{"Title":"Video: How to properly short a CT shorting block?","UrlName":"FA274542","LastModifiedDate":"29/04/2026","products":"3090TB6, 3090TB4","score":1.0003384094754653,"firstpublisheddate":"20/11/2015","answer":"

Product Line
3090 SCCT
Current Transformer Shorting Block

Environment
Hardware installation/modification

Resolution
*Warning: Installation and maintenance of this device should only be performed by qualified, competent personnel that have appropriate training and experience with high voltage and current devices. Failure to follow the instructions / warnings in the Meter Installation Guide can result in permanent damage to the meter, severe injury or death. 

CT shorting blocks are used to create an intermediate contact point between the meter and load where it is safe to perform wiring alterations. CT shorting blocks are wired such that the negative leads of the current transformers are connected to the same node and tied to ground.

Four or Six pole shorting blocks can be used in applications with up to three current transformers as shown in the diagram below, which allows each current transformer lead to have an individual contact point. 

 

In order to safely modify the current transformer wiring at the meter or metering side of the CT shorting block, the positive leads of the current transformers must also be shorted out to the CT shorting strip using the additional screws which are usually found on the corners of the shorting block.

Once the current transformers are properly shorted using the CT shorting block, it is safe to make wiring modifications on the meter side of the shorting block.

Once the intended wiring modifications have been completed, you will need to remove the shorting screws from the positive CT lead terminals in order to return the meter to proper operation.

Be aware that incorrect alterations can result in arc flash.

For further information and documentation regarding Schneider part numbers for shorting blocks, click here

"},{"Title":"Video: How do I read data from a Modbus TCP device using the embedded Ethernet port on a Unity Premium PLC?","UrlName":"FA346361","LastModifiedDate":"07/10/2024","products":"Modicon Premium","score":0.8666183224558859,"firstpublisheddate":"17/10/2018","answer":"Issue:
Programming Modicon Premium PAC to Read Device Data via Ethernet Port

Product Line:
Premium, Unity Pro

Environment:
Unity Pro software

Resolution:



To read data from a Modbus TCP device using the Premium PLC with embedded Ethernet port , follow the steps below:
1. Create a Premium project with an embedded Ethernet port on the CPU
2. Create an Ethernet network under "communication" within the project browser
3. Double click on the newly created network and under the "IP configuration" tab, enter the desired IP address and subnet mask
4. Select the "messaging" tab and check the "XWAY profile" option.
5. Enter an XWAY address and IP address under the connection configuration section. The XWAY address comprises of a network and station number. The network number can be between 0 and 127 and the station number must be          between 100 to 163 for Modbus TCP messaging. Example of XWAY address is 1.101
6. Create a section and add the READ_VAR function block
In the example below, the Premium PLC is reading 5 words starting a 40400 in the remote device

READ_VAR (ADR := ADDR('{1.101}SYS'),
          OBJ := '%MW',                           (* Type of objects to read for Premium PLC: '%MW': internal words *)
          NUM := 400,                              (* Index of the first object to read. *)
          NB := 5,                                      (* Number of objects to read. *)
          GEST := %MW50:4,                  (* Exchange management table *) 
          RECP => receive_buffer);          (* Word table containing the value of the objects read. The length of this array must be greater than or equal to NB*) 

%MW52 := 20;  (* The third word of the management table is managed by the user which defines the maximum response time using a time base of 100 ms.*)

 \n

If this FAQ did not solve your issue, you can chat with us at chat with us  or e-mail us at customer.services@se.com to create a case with our Technical Support Team.

\n\n

If you are not located in North America, please contact your local Customer Care Center for assistance:

\nSupport | Schneider Electric Global (se.com)"},{"Title":"Video: How is a faulted Altivar drive reset?","UrlName":"FA280815","LastModifiedDate":"11/12/2024","products":"Altivar 212, Altivar 71, Altivar 61, Altivar Process ATV600, Altivar Process ATV900, Altivar 320, Altivar 12, Altivar 312","score":0.8618805897993714,"firstpublisheddate":"24/02/2016","answer":"Issue:
Reset a  fault on a Altivar drive.

Product Line:
Altivar ATV variable speed drives

Environment:
All

Cause:
Need to reset a fault status.

Resolution:
There are multiple ways to reset a fault, including a logic input assignment and communication network.  But an easy way to reset a fault is to remove line voltage from L1,L2,L3.  Allow enough time for the display to go completely blank and then wait another 30seconds.  Reapply power.  If the fault appears again, it means that the VFD has re-faulted.

Note: Some faults have to be reset by removing and reapplying line voltage (power-cycling) the drive. Refer to your drive's Programming Manual for a list of faults that require a power cycle to clear. 

The following video demonstrates how to configure a logic input fault reset function on the Altivar 212:

"},{"Title":"Configuring the Panel Server (PAS400/PAS600/PAS800) for Connectivity with EcoStruxure Energy Hub (EEH)","UrlName":"FAQ000278615","LastModifiedDate":"22/12/2025","score":0.8595117234711143,"firstpublisheddate":"04/12/2025","answer":"

This article will explain how to configure your Panel Server gateway device (at commissioning or afterwards) to be ready for connection to your site for energy management using EcoStruxure Energy Hub (EEH).

\n

The Panel Server is one of the commonly used gateways for cloud connection in EEH. There are three models of the panel server

\n

• PAS400: Panel Server Entry
• PAS600: Panel Server Universal
• PAS800: Panel Server Advanced

\n

 

\n

 

\n

Follow the below steps to get your Panel Server connected to Schneider Cloud and ready for your EEH Site:

\n

 

\n

Step One: Installation

\n

Carry out the installation and wiring of the Panel Server as per the corresponding instruction sheet.

\n

 

\n

Step Two: Connecting to the Panel Server

\n

Power on Panel Server supply and connect to the gateway on your laptop device through the ethernet ports. If you are commissioning the Panel Server (i.e. connecting for the first time), ensure you disconnect your laptop from WiFi and any other local networks.

\n

Ensure that your laptop IP settings are set to automatic DHCP and turn on network discovery and file sharing. Once this done, the Panel Server will appear in File Explorer --> Network. You can open the webpage by double-clicking the Panel Server icon.

\n

If you are commissioning the Panel Server, the webpage will prompt you to set a password. Otherwise proceed to login with your login credentials.

\n

 

\n

Step Three: Date and Time

\n

Go to Settings --> General --> Date and Time -->  Select "Schneider Electric Cloud" --> Save

\n

\n

 

\n

Step Four: Network Settings

\n

Go to Settings --> Network Communications and ensure that the Panel Server DNS and Proxy Settings are configured as per your site requirements.

\n

 

\n

Step Five: Device Discovery

\n

Proceed to connect the devices in your system to the Panel Server. This can be done from:

\n

• Wireless Devices: Go to Settings --> Wireless Devices --> Wireless Discovery
• Wired Devices: Go to Settings --> Modbus Devices --> Modbus Addition

\n

Note. It is important to set the appropriate contextualisation data of each device you are connecting to ensure it is correctly captured in EEH once the Panel Server is linked.

\n

 

\n

Step Six: Device Measurement Verification

\n

Go to Monitoring and Control and step through all the connected devices and ensure the parameters and measured values are correct for each device. It is important to ensure this data is correct. If this data has to be changed post EEH integration, we will need to delete the previous data.

\n

\n

 

\n

Step Seven: Connection to Schneider Cloud

\n

Go to Settings --> Data Management --> Activate Sampling. The Data Sampling indicator should change from a red cross to a green tick as seen in the below image.

\n

\n

 

\n

Go to Settings --> Data Publication:

\n

1. Publication Method --> Select "Schneider Cloud Services" --> Save
2. Schneider Cloud Services Application Management --> Click "Connect" (Connection Status will change from "Not Connected" to "Connected," Connection Diagnostics will be added with "Device Activated" status and Cloud Service Status in the header will go from red cross to orange circle. This can be seen in the image below in the green boxes.)
3. Topology --> Click "Publish Topology"

\n

\n

 

\n

 

\n

Your Panel Server is now ready for connecting to your site via EEH. 

\n

• Refer to this video for a walk through of the comissioning of the Panel Server and setup for EEH: EcoStruxure Energy Hub - Panel Server Configuration for Energy Hub | Schneider Electric
• Refer to this video on how to commission your EEH site and bring the Panel Server that has been configured in the above steps to your site: EcoStruxure Energy Hub - Energy Hub Basic Setup | Schneider Electric

"}],"getPa":[{"Title":"What is the code for a 32A Type B RCBO for EV chargers?","UrlName":"FA380679","LastModifiedDate":"26/08/2025","products":"Acti 9 iC60 RCBO (2P, 3P, 4P), Acti 9 iID","score":0.9751055114200596,"firstpublisheddate":"08/08/2019","answer":"We do not have any Type B RCBOs available, but this protection can be achieved using a RCCB and MCB.

Single phase = A9Z51240 + A9F54232

3 phase = A9Z51440 + A9F54432
 "},{"Title":"What is the complete RJ45 connector pinout for ATV320?","UrlName":"FAQ000241027","LastModifiedDate":"14/11/2024","products":"Altivar 320","score":0.9341325010639807,"firstpublisheddate":"05/08/2022","answer":"

The complete pinout, 
Pin 1 = CAN_H
Pin 2 = CAN_L
Pin 3 = CAN_GND
Pin 4 = DI Modbus Signal 
Pin 5 = DO Modbus Signal
Pin 6 - Not connected
Pin 7 = VP, 10Vdc
Pin 8 = Common 

The CANopen signals on the front port are deactivated if an option card is plugged in the drive (any option card connected). 

\n\n"},{"Title":"What does the 's' on the Power Meter Accuracy class 0.2s & 0.5s mean?","UrlName":"FA276243","LastModifiedDate":"13/11/2024","products":"PM8000 series, PM5000 series","score":0.9228158984668298,"firstpublisheddate":"08/12/2015","answer":"It refers to the accuracy of the meter. A 0.2s meter has a much higher accuracy as below.

Since Accuracy depends on the load of the system, IEC/AS have developed different standards to define accuracy under different load conditions, known as “Accuracy Class”

IEC/AS Standard 62053-11 covers Accuracy Class 0.5, 1.0 & 2 for electromechanical meters for active energy (watt-hours) which means the accuracy as a percentage from reading based on full load conditions and unity power factor. However the accuracy deteriorates under lower load conditions, power factor less than unity along with the presence of harmonics.

IEC/AS Standard 62053-21 covers Accuracy Class 1.0 & 2 for static/electronic meters for active energy (watt-hours) which means the accuracy as a percentage from reading based on full load conditions and unity power factor. However the accuracy deteriorates under lower load conditions, power factor less than unity along with the presence of harmonics.

IEC/AS Standard 62053-22 covers a higher Accuracy Standard of 0.2S and 0.5S for static/electronic for active energy (watt-hours) providing a higher “Accuracy Standard” under full load conditions and unity power factor in addition to better accuracy readings at much lower load currents, power factor conditions less than unity along with the presence of harmonics."},{"Title":"How to Calculate the Required Capacity kVA Rating or Amperage Capacity for Single and Three Phase Transformers","UrlName":"FA101694","LastModifiedDate":"11/07/2022","products":"Non-Linear Energy Efficient Transformers, Energy Efficient Transformers, Low Voltage Transformers 2016 Efficiency Levels","score":0.8357128483933606,"firstpublisheddate":"06/02/2003","answer":"\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n

1. the load line-to-line voltage (V)
2. the maximum load phase current (I)

\n\n

Single Phase Transformers: kVA = (V * I) /1000
Three Phase Transformers:  kVA = (V * I * 1.732) / 1000
where 1.732 is the simple numerical value for the square root of 3 (1.7320508...)
Then round up to the next standard 3ph kVA rating as found in Section 14 of SquareD/Schneider Electric Catalog, Digest 178 .

Single Phase Transformer Example: V = 240, I = 175; Therefore: kVA = (240 x 175) / 1000 = 42 kVA
This calculates to 42 kVA, thus we round up to a standard Single Phase size 50kVA.  From the Digest, an EE50S3H will satisfactorily serve this load.

Three Phase Transformer Example:  V = 208, I = 175; Therefore: kVA = (208 x 175 x 1.732) / 1000 = 63.05kVA
This calculates to 63+ kVA, thus we round up to a standard Three Phase size 75kVA.  From the Digest, an EXN75T3H will satisfactorily serve this load.

Note:  This is a sample kVA calculation and does not take into account possible special load requirements, such as found with motors or some medical equipment, or other specialty applications.


Amperage provided for a given KVA can be determined by similar techniques:

Single Phase Example:  Using a 50 KVA Single Phase Transformer as a starting point.  50KVA is equal to 50,000 VA. (K= 1,000)  The full value in VA, 50,000 is then divided by the Voltage 240V = 208 Amperes.  This is a "Two Step Division", technique:  VA / Voltage = Amperage. 

Three Phase Example:  Using a 75 KVA Three Phase Transformer as a starting point.  75 KVA is equal to 75,000 VA. (K= 1,000)  The full value in VA, 75,000 divided by 1.732 = 43,302, which is then divided by the Voltage 208V = 208.2 Amperes.  This is a "Three Step Division", technique:  VA / 1.732 / Voltage = Amperage. 


3.  As an alternative to these calculations, you may prefer to use the charts below.  Standard KVA sizes are shown on the left margin, Standard Line-to-Line Voltages are shown along the top margin. 

Chart Example:  Using the numbers from the earlier Three Phase Transformer Example V=208, I=175.  Use the chart titled "Three Phase Low Voltage Dry Type Transformers".  Following the 208V top margin entry, and reading down vertically, it is seen that the first entry in that 208V vertical column that will cover 175A, and then some, is 208A, which indicates a 75 KVA Transformer, shown in the next over vertical column to the left.

See pages 3 & 4 of document 7400HO9501 "Looking for Low Voltage Transformer Solutions" for more information and conversion tables.

"},{"Title":"What is the meaning of the B, C, D, K, and Z curves for C60 Multi-9 circuit breakers?","UrlName":"FA228794","LastModifiedDate":"05/01/2026","products":"Multi 9 C60 UL489 MCB","score":0.8009930486593844,"firstpublisheddate":"28/07/2014","answer":"

Issue:  
What do the B curve, C curve, D curve, K curve and Z curve designations mean on Multi 9 breakers?

Product Line:
Circuit Breakers

Resolution:
For C60 Multi-9 devices, AC rated, the following is the meaning of the trip curves (in reference to instantaneous trip rating):
B curve: 3.2 - 4.8 times amp rating for UL489 and UL1077 (3 - 5 times amp rating for IEC)
C curve: 7 - 10 times amp rating
D curve: 10 - 14 times amp rating
K curve: 10 - 14 times amp rating
Z curve: 2.4 to 3.6 times amp rating
 

"},{"Title":"How do I test PLC client and PLC server communication with explicit messaging using Control Expert’s simulator instead of actual hardware?","UrlName":"FAQ000223132","LastModifiedDate":"28/11/2024","products":"EcoStruxure™ Control Expert","score":0.8009930486593844,"firstpublisheddate":"24/10/2021","answer":"The solution is to use the steps below which show the setup of Control Expert V15.0 and above’s IP address port simulator.
Step 1: Create an XML file with the format below. Any IP address can be used and assigned to a port.

eg). 
 <EquiList>
<PLCAdressSim Address="192.168.250.1" Port="502"></PLCAdressSim>
 <PLCAdressSim Address="192.168.100.1"  Port="503"></PLCAdressSim> 
 </EquiList>

Step2: Open Control Expert and create a new M580 project. Create a program with the Read_Var block and assign an IP address that corresponds to one of the ports (created in the XML). Eg)


Build and connect to the simulator using the port number not assigned to the IP address used in the ADDM block. Transfer the program and run. Eg)



Step 3: Open another instance of Control Expert and create another blank M580 project. Connect to the simulator as below. The IP address must be 127.0.0.1 but the port number must be the one assigned to the IP address used in the ADDM block previously. 



Step 4: From the task bar, select Options from the Simulator menu


Step 5: Enter the location of the .xml file


It will now be possible to monitor the memory read in by the Read_Var block."},{"Title":"How are the long time, short time, instantaneous, and ground fault pickup levels determined on a Micrologic trip unit?","UrlName":"FA92740","LastModifiedDate":"05/01/2026","products":"Micrologic Trip Units","score":0.5003972194637537,"firstpublisheddate":"16/11/2001","answer":"Issue:
How to set dials on trip unit? What do the dials mean?

Product Line:
Circuit Breakers

Resolution:
The settings are determined by a coordination study.

Description of what the dial settings mean:

The long time (current rating) (Ir) is the long time pickup setting multiplied by the sensor plug amperage (In).
The short time current (Isd) equals the short time pickup setting multiplied by the long time pickup setting (Ir).
The instantaneous current pickup amperage (Ii) is equal to the instantaneous pickup setting multiplied by the sensor plug amperage (In).
Ground fault pickup values (Ig) is equal to the ground fault pickup setting multiplied by the sensor plug amperage (In)."},{"Title":"Ecostruxure Machine Expert Showing Untrusted Digital Signature","UrlName":"FAQ000277563","LastModifiedDate":"21/10/2025","products":"EcoStruxure Machine Expert","score":0.30198609731876863,"firstpublisheddate":"21/10/2025","answer":"

Issue:

\n

Ecostruxure Machine Expert doesn’t work as normal ,after a Windows Update and keeps on getting the following message ,

\n

\n

\n

 

\n

Product Line:

\n

Ecostruxure Machine Expert 

\n

 

\n

Resolution:

\n

The integrity check was triggered by new Signed Certificates related to the Windows update.
This has no effect on the used applications , if you Click the "Continue using Netmanage Server".

\n

Till Machine Expert V2.3 this will be triggered because the new certificates are not in our whitelist and from Machine Expert V2.3 this issue will not be present.

For versions before V2.3, the integrity check could be silenced (e.g. LogicBuilder "C:\\Program Files\\Schneider Electric\\EcoStruxure Machine Expert\\V2.2\\LogicBuilder.exe" --SignatureVerificationWarningLevel=Silent) for ESME or other tools like Diagnostics, Controller Assistant and also Netmanage, see also 
https://product-help.schneider-electric.com/Machine%20Expert/V2.2/en/SoMProg/index.htm#t=SoMProg%2FD-SE-0108425.html

But if Netmanage is not running as a Windows Service, then you have to uninstall the Windows-Service and Start manually to start Netmanage in silent mode until Machine Expert V2.3
 

\n

From ESME V2.3 it's also possible to run the Netmanage service in silent mode by setting the Config file 

\n

 

\n

\n

 

\n

 

"}]}" translations="{"tabs":{"popularArticles":"Popular Articles","popularVideos":"Popular Videos","generalKnowledge":"Generic Knowledge","sections":{"popularVideosTitle":"Popular Video FAQs","popularVideosTitleMobile":"Popular Videos","generalKnowledgeTitle":"Learn more through our Generic Knowledge FAQs","generalKnowledgeTitleMobile":"General Knowledge"}},"searchDocument":{"category":"Product category","publishedDate":"Published on","modifiedDate":"Last Modified on"},"moreButton":{"labelMore":"Show more","labelLess":"Show less"},"Redirection":{"message":"The FAQ you are looking for is no longer available, we have redirected you to your Country FAQ home page. Please use the FAQ search bar provided in the home page to search for your query."}}" env="new" s-id="324523">

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