Above that, the thermal trip curve derates: 49 A at 55 °C, 48 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C. If the panel ambient runs near 70 °C, the effective ampacity is 45 A — not the nameplate 50 A.
Interrupting capacity by system voltage
Short-circuit current rating (SCCR) varies with line voltage: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V. For a 480 V panel, the 75.6 kA at 440 V is the closest published figure — coordination studies should use the 440 V value as the bounding limit.
Auxiliary functions and release options
The shunt trip allows remote tripping from a safety PLC or E-stop circuit; the auxiliary switches provide status feedback to the control system.
Physical dimensions and panel fit
Width 76.2 mm (3 in), height 130 mm (5.12 in), depth 70 mm (2.76 in).
Maximum power loss is 14.6 W.