Auxiliaries for MCBs, RCCBs & RCBOs

Auxiliary Contact - MZ201

Auxiliary contacts are used to provide contact status indication of associated device.

Contact rating - 6 A, 230 V AC
1 NO + 1 NC contact

Trip Alarm Contact - MZ202

Trip alarm contacts are used to indicate tripping of associated device.

Contact rating - 6 A, 230 V AC
1 NO + 1 NC contact

Shunt Trip Unit - MZ203, MZ204

Shunt trip units are used for remote tripping a device.

Rating -
230-415 V AC - MZ203
12-48 V DC - MZ204


Under Voltage Release - MZ205, MZ206

Under voltage release allows MCBs to be closed only when the supply voltage is above 70% of Un. Undervoltage release trip the MCBs if the supply voltage falls below 35% of Un.

Ratings -
48 V DC - MZ205
230 V AC - MZ206

Over Voltage Release - MZ209

Over voltage release monitors the voltage between phase & neutral and automatically trips the circuit breaker if the voltage exceeds 280 V AC.

Locking Kit - MZN175

Locking kit is used to lock the operating knob of device in on / off position.

Auxiliary Contact for RCCBs - CZ001

CZ001 is used to provide on, off, trip indication of RCCBs. It is also used as interface relay between RCCB and for MCB standard accessories like MZ203, MZ204, MZ205, MZ206 & MZ209.
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