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What is meant by thermal current rating (Ith) for Contactor "D" or "F"...

It means the rated current that this contactor can switch for Load category AC1 (thermal loads), Example: LC1D09 is 9 A on AC3 and its thermal current (Ith = 20 to 25 A) (this means it can switch up...

How to use RCCB-ID in Three Phase Network.

RCCB-ID can be used for Three Phase Network (220/440V AC). Refer attachment for the connection of RCCB-ID in 3 Phase (220/440V AC) network.

A 415V motor, class F insulation with dv/dt capability of 1 KV/μS, Can can...

Generally the motor with Class F insulation is considered as VFD graded motor, but it is specified that the dV/dT withstand capacity is 1 KV/μS. Hence we can not consider this motor as VFD graded...

How to to unlock the drive using master reset password for ATV310 ?

1. Go to the 999. Press Enter. ON will be displayed ( meaning drive is password protected and hence access to FULL menu and factory reset is not permissible) 2. Rotate jog dial clockwise and set...

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Learn more through our Generic Knowledge FAQsGeneral Knowledge

How to reset Zelio logic password?

The password can be reset by clearing the program inside the Zelio either by Transfering a new program to the Zelio Or Clearing the program that already exist by updating the firmware Kindly find the...

What is meant by Symmetrical and Asymmetrical breaking currents?

issue: Customer wants to know the value of the symmetrical and asymmetrical breaking current of the circuit breaker and what do they mean. Environment: Circuit Breaker Resolution: - Symmetrical...

Why are some products double coded with two IP ratings (like IP65 / IP67)?

The second characteristic numeral in an IP designation indicates the degree of protection provided by enclosures with respect to harmful effects on the equipment due to the ingress of water. 5 =>...

Can I install bypass contactor for Altivar process drives?

Bypass contactors are not supported by ATV process LV drives (ATV600, ATV900). It is not possible to bypass the drive by external contactors because there is no synchronization of output voltage with...