80 A MCCB with TM210 release — line protection for distribution panels
Breaking capacity reaches 52.5 kA at 240 V and 32 kA at 415 V, so it clears high-fault conditions upstream of branch feeders. At 55 °C the continuous rating derates to 76.8 A, and at 70 °C it drops to 72 A — the thermal curve matters when the breaker sits in a crowded, poorly ventilated enclosure.
Panel integration — mounting and auxiliary wiring
The 2 HQ auxiliary switches (form C) provide normally-open and normally-closed contacts for remote status — wire them to a digital input module for breaker-trip indication. The undervoltage release (UVR) coil must be continuously energized for the breaker to stay closed; a voltage dip below the dropout threshold opens the breaker automatically, which is useful for emergency-stop circuits or undervoltage protection schemes. No communication module is fitted — this is a standalone thermal-magnetic breaker, not a metering or networked device.