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Auxiliary Contact
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Protects the circuit by tripping the breaker when the voltage either exceeds a set upper limit (overvoltage) or falls below a preset lower limit (undervoltage).
Typical Applications：
Ensures the safety of voltage-sensitive equipment in unstable power supply conditions.
1. Circuit breaker body 2. ETM-TZ mechanical interlock
3. ETM-MV+MN over-undervoltage release 4. ETM-MX+OF shunt release and auxiliary contact
ETM-MN undervoltage release ETM-MX shunt release
ETM-MV overvoltage release 5. ETM-OF auxiliary contact
ETM-MNs voltage loss release ETM-FB auxiliary and alarm contact
| Technical Data | ||
| Model | ETM-MV+MN | |
| Standard | IEC/EN 60947-5-1 | |
| Rated voltage (Ue) | 230VAC | |
| Operating frequency | 50/60Hz | |
| Rated working trip overvoltage | 280V±5% | |
| Rated working trip undervoltage | 170V±5% | |
| Rated insulation voltage (Ui) | 400V | |
| Rated impulse withstand voltage (Uimp) | 2.5kV | |
| Pollution degree | 2 | |
| Mechanical state indicator | Yes | |
| Terminal type | Lug type | |
| Terminal capacity | Up to 2.5mm² | |
| Tightening torque | 0.8 N.m | |
| Ambient temperature | -5℃~+40℃ | |
| Storage temperature | -25℃~+70℃ | |
| Product width | 18mm | |
| Compatible product | T Series MCB,RCBO | |
