It carries a rated current of 16 A at 40 °C across all three poles, with a maximum breaking capacity of 52.5 kA at 240 V AC — enough headroom for high-fault utility feeds or transformer secondaries. The 3-pole construction fits standard 3-phase systems; the built-in undervoltage release (UVR) and two HQ auxiliary switches let you integrate breaker status into a PLC or safety circuit without adding external relays.
The interrupting rating drops as system voltage rises: 52.5 kA at 240 V, 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at both 500 V and 690 V. The 16 A frame is rated for 800 V insulation (rated impulse withstand), so it works on 690 V line-to-line systems, but the available fault current must stay under 7.5 kA at that voltage or you need an upstream current-limiting device.
The UVR coil and auxiliary switches plug into the front accessory slots; no rewiring of the main poles is needed to add them.
Maximum power loss is 13.1 W — negligible for panel thermal budgeting. The part carries no ground-fault monitoring and no communication module; it is a straight thermal-magnetic line protection device.