The 3-pole configuration with FF terminals carries UL and CSA approvals, making it suitable for North American panel builds where a listed breaker is required for the service entrance or feeder protection. The EKIP DIP LSI trip unit provides adjustable long-time (L), short-time (S), and instantaneous (I) protection curves, giving the specifying engineer flexibility to coordinate with downstream devices. The 250 A continuous rating on a 400 A frame means there is thermal headroom in the breaker body — the frame is not pushed to its limit at full load, which helps with heat dissipation inside a closed panel.
This breaker fits the XT5N 400 platform, sharing mounting hardware, busbar connections, and accessory lineup across the frame size.