MCB Accessories

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Product Description

1. S2,S3 Shunt Tripper

Rated insulating voltage(Ui) 500V
Rated power voltage (Us) AC 400, 230, 125V
Operate voltage range 70% 〜100% Us
Contact capacity AC: 3A/400V AC: 6A/230V AC: 9A/125V
Dielectric strength 2kV/1min
Electro-mechanical endurance >4000

Mounting on the right side of MCB/RCBO, used to trip the combined MCB/RCBO by remote controlling device.

 

2. U2+02,U3+03 Over/Under-voltage Tripper

Rated voltage (Ue) AC 230V
Rated insulating voltage (Ui) 500V
Over-voltage tripping range 280V±5%
Under-voltage tripping range 170V±5%
Electro-mechanical endurance >4000

Mounted on the right side of circuit breaker, actuate the combined device to trip in case of under-voltage or over-voltage, effectively prevent the device from closing operation under abnormal power voltage condition.

 

3. SD3 Alarm Switch

Rated insulating voltage (Ui) 500V
Rated power voltage (Us) AC 400,230,125V
Operate voltage range 70-100% Us
Contact capacity AC: 3A/400V AC: 6A/230V AC: 9A/125V
Dielectric strength 2kV/1min
Electro-mechanical endurance >4000

Is used to connect ON/OFF auxiliary contact, work as circuit breaker ON/OFF indicator in case of faulty (tripping).

 

 

 

 

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