Rated breaking capacity is 25 kA per IEC 60947-2, which gives solid fault-current headroom for most industrial panelboards and sub-distribution boards fed from a transformer of typical impedance.
The 16 A rating holds at 35 °C ambient. At 40 °C it derates to 14.22 A, at 45 °C to 13.25 A, at 50 °C to 12.21 A, and at 55 °C to 11.06 A. The breaker itself is rated for ambient up to 75 °C and as low as -40 °C, with humidity limits of 95% at 55 °C tapering to 35% at 75 °C.
Physical fit and mounting
Width is 36 mm (2 modular width units), depth 76 mm, height 90 mm, with an installation depth of 70 mm. The combined terminal at top and bottom accepts the supply cord from either end.