Molded Case Circuit Breaker for Line Protection
It carries a rated current of 16 A across the 40 °C to 55 °C ambient range, derating to 15 A at 60 °C through 70 °C — a thermal curve that keeps the breaker in service without nuisance tripping in warm enclosures. Breaking capacity is the headline figure here: 121 kA at 240 V, 75.6 kA at 415 V, and 52.5 kA at 440 V. For a 16 A frame, that is high-interrupting capability — it clears fault currents that would weld a standard MCB's contacts, making it suitable for installations with high available fault current upstream of the panel.
Auxiliary Releases and Switching
Depth of 70 mm (2.76 in) leaves clearance for rear-connected busbars or cable ducts. Maximum power loss is 10.6 W — a figure to include in enclosure thermal calculations.