Motor Protection Circuit Breaker — 16 A, CLASS 10, 50 kA
It switches 7.5 kW motor loads at 400 V AC and carries a 50 kA breaking capacity at 400 V AC, so it can interrupt high fault currents upstream of the motor starter without cascading damage to downstream components.
Dimensions: 45 mm wide, 97 mm high, 96 mm deep — fits standard 45 mm modular enclosure slots. No side or rear clearance required. Screw-type terminals on the main circuit accept solid or stranded conductors: 2x (1…2.5 mm²) and 2x (2.5…6 mm²) per pole, or AWG 14–10. Shock rated 25g / 11 ms.
Breaking Capacity & Coordination
Breaking capacity varies by voltage: 100 kA at 240 V AC, 50 kA at 400 V AC, 10 kA at 500 V AC, 4 kA at 690 V AC (–). Mechanical endurance of the main contacts is 100,000 operations typical; maximum switching frequency at AC-3 is 15 operations per hour.