Motor protection MCCB with ETU350M release
Breaking capacity reaches 187 kA at 240 V AC and 121 kA at 415/440 V AC, so it can interrupt high fault currents in low-voltage distribution panels without upstream coordination issues. An integrated undervoltage release (UVR) is fitted as standard — if the control voltage drops, the breaker trips immediately, which is common for emergency-stop or safety isolation circuits. Phase failure detection is also built in, preventing single-phasing damage to motors.
Maximum power loss is 75 W at rated load. For dense panel layouts, ensure ventilation around the breaker to keep ambient below the 70 °C operating maximum.