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What is the maximum RTD cable distance

The maximum RTD cable distance is based on the length that will result to a lead resistance not exceeding 100 ohms (2-wire or 3 wire). For the 3rd wire RTD sensor, the maximum cable length is up to 200 feet (61 m). If longer cable lengths are required, then it is best to use a temperature...

What is the minimum opening time & closing time for the LF Circuit Breaker.

Schneider Make Circuit Breakers are designed on mean opening time or closing time. The value is same for LF1 or LF2 or LF3 Circuit Breakers. It is linked to the operating mechanism RI used for all the LF Circuit Breaker. Mean opening time at Un : 48 ms. Mean Closing time at Un: 65 ms. Where Un =...

Please advice if RCCB 30mA sensitivity is enough for human safety or not?

Regarding the residual current devices ,are used mainly for human protection against direct and indirect contact,and they are defined by their sensitivity and interference immunity (type AC,A,SI and B).Please refer to catalog pages attached for the selection of the suitable type and some...

What is the difference between braking unit and braking resistor in AC drives?

A braking unit or sometimes called a braking chopper is an electrical switch (normally IGBT) that manages the DC bus voltage by switching the braking energy to a resistor where the braking energy is converted to heat. By activating the braking function, it can manage the DC bus voltage level and...

Can we use LC1D contactor for 24V DC power switching application? What is the current rating possible to switch with DC load and how to connect the DC load?

In DC application, LC1D contactor can be used up to 300VDC. But depending upon the DC voltage level, the maximum current rating is limited. In LC1D contactor range, the operational current is different for different voltage & pole used in the contactor specification. This all kind of tested...

Bi-directional electric meters for Solar system application ?

The EM3555 model adds a bi-directional monitoring feature designed expressly for renewable energy applications, allowing measurement of power imported from the utility grid as well as power exported from the renewable energy source (e.g. solar panels). Please check the below link for more info...

What is the definition of ANSI 67N/67NC - Directional earth fault?

Earth fault protection, with selective tripping according to fault current direction. 3 types of operation: type 1: the protection function uses the projection of the I0 vector type 2: the protection function uses the I0 vector magnitude with half-plane tripping zone type 3: the protection function...

What is the difference between In-line and Inside Delta Soft Starter Circuits?

The Altistart 48 connected in the motor supply line The motor connection depends on the supply voltage, which in this example is a star connection. The motor connection depends on the supply voltage, which in this example is a delta connection. The Altistart 48 connected in the motor delta winding...

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What is the part number of the cable used for communication between TSXSCP114 PCMCIA card and other RS485 device.

TSXSCPCM4030 cable is required from TSXSCP114 PCMCIA card to the Modbus branching device TSXSCA50 for connecting other RS485 device on the Modbus Network. In case TSXSCA50 Modbus branching device is not used, you can connect this cable directly to Modbus RS 485 device. For this you have to...

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