W9ML Series Moulded Case Circuit Breaker (MCCB)

Overview

W9ML-160~630(100A-630) Earth-leakage Circuit Breakers are with the built-in type earth-leakage protection devices. Leakage protection and distribution protection products are the same size, but the small sizes can save 30% of the installation space.

Application

●W9M series Molded Case Circuit Breakers are suitable for AC 50/60Hz, rated working voltage 500V (400/630A for 440V), rated current from 100 to 630A of distribution net work, for the distribution of power and protection circuits, power supply and electrical equipment from endangering overload and short circuit to improve the power supply reliability and continuity.

Ensure 100% reliability and continuity of supply

●Release setting current range 100A to 630A;

●Full range of products sensitivity and delay time is adjustable;

●Breaking capacity, including 25KA, 36KA and 50KA

Provide 3 protection

●Overload protection;

●Short-circuit protection;

●Leakage protection.

Provide two options: Leakage tripping; the alarm does not trip

●160~630A leakage module with built-in device, all it's volume are same to the distribution protection circuit breakers

Power

●Back into the line

300VAC and below voltage can be achieved back into the line.

●Power of Leakage module 

No external power, to take power from the three-phase, even if one is missing, it can still work.

Insulation performance test

●Before the insulation performance testing, please make the insulation performance testing switch in a horizontal position to protect the electronic components. In this position, the switch automatically tripped, and the switch cannot be closed.

Tripping characteristics

●Fault indication 

Local mechanical indication may indicate leakage fault; Leakage alarm switch ALV may remotely indicate leakage fault. 

●Reset 

After the leakage troubleshooting, need to take the switch in the "off"position for reset. After the reset, leakage mechanical indication and ALV will automatically revert to the normal position.

1.Sensitivity and time delay setting

2.Leakage test button

3.Tripping button

4.Insulation performance test switch

Main parameters