The ETU550 gives you adjustable long-time, short-time, instantaneous, and ground-fault settings, plus a communication function for remote monitoring or integration with a BMS.
Breaking capacity — what it means for your fault level
This breaker's interrupting rating changes with system voltage: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 4.5 kA at 690 V.
Thermal performance and panel fit
That's a standard 4-pole MCCB form factor for a 160 A frame; it'll fit a typical DIN-rail or panel-mount cutout, but check the depth clearance against the enclosure door or busbar stack.
