What this 160 A MCCB brings to a panel
Rated insulation voltage is 800 V, and the interrupting ratings climb to 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V. That's the short-circuit current it can safely clear at those voltages — important for coordination studies and ensuring the breaker holds up under fault without taking out upstream gear. No derating curve to chase. That simplifies panel design in warm environments — switchgear rooms, outdoor enclosures, or any spot where heat builds up.
That's the standard 3VA frame size for this current class — it bolts into the same footprint as other 160 A SENTRON MCCBs.
The ETU550 electronic trip unit provides adjustable long-time pickup, short-time pickup, instantaneous, and ground-fault (if equipped) protection. The communication function lets the breaker talk to a PLC or SCADA system. Not a huge heat load in a panel, but worth accounting for when you're stacking multiple breakers in a confined space. The no-derating-to-70°C spec already helps with that.