Motor circuit breaker for the panel builder
It's sized for a 11 kW motor at 400/415 V AC or 15 kW at 500 V AC, per the datasheet. The 25 A rating is the full-load current it carries without tripping; the magnetic trip is fixed at 388.3 A, so it handles starting inrush on a motor of this size without nuisance trips. Breaking capacity is 50 kA Icu at 230/240 V, 15 kA at 400/415 V, and 6 kA at 440 V — all per IEC 60947-2. If your SCCR is higher, you'll need an upstream current-limiting device. Auxiliary contacts are 1 NO + 1 NC on the front, built in — no separate add-on block needed for basic status feedback.
The 25 A rated current is the thermal continuous rating at the specified ambient. The thermal-magnetic trip gives motor overload protection (thermal curve) plus short-circuit protection (magnetic instantaneous at 388.3 A). Phase failure sensitivity is built in per IEC 60947-4-1, so it will trip on loss of one phase — critical for preventing single-phasing damage on a motor. Electrical durability is rated at 100,000 cycles for AC-3 duty at 415 V — that's the motor-switching category. Mechanical durability matches at 100,000 cycles. For a line that cycles a motor a few times per hour, that's years of service before contact wear becomes a consideration. Power dissipation per pole is 2.5 W, so 7.5 W total at rated current. That's modest for a 25 A breaker, but if you're packing several in a small enclosure, it adds up. The IP20 finger-safe rating is standard for open panel mounting; no additional shrouding needed for basic touch protection.
Standards and compliance — what's on the nameplate
Certified to EN/IEC 60947-2 (circuit-breaker standard) and EN/IEC 60947-4-1 (contactor/motor-starter standard), plus UL 60947-4-1 and CSA C22.2 No 60947-4-1. That covers both IEC and North American installations. Also listed for IEC/EN 60335-2-40 (heat pump/air conditioner) and IEC/EN 60335-1 Clause 30.2 for glow-wire testing — relevant if this goes into an appliance or HVAC skid. Fire resistance is verified at 960 °C per IEC 60695-2-11. Climatic withstand conforms to IACS (marine/industrial environmental testing).
Integration notes for the wireman
Terminals accept up to 2 x 6 mm² solid or 2 x 4 mm² flexible with ferrule. Tightening torque is 1.7 N·m on the screw clamp — use a torque driver, not feel. Strip length is not stated in this listing, but 8-9 mm is typical for this terminal class. Mounting position is horizontal or vertical — no restriction. The 89 mm height and 78.5 mm depth fit standard distribution boards. IK04 impact rating means it withstands 0.5 J (typical for panel-mounted gear).