MCCB for line protection — 63 A, 187 kA interrupting capacity
Breaking capacity is 187 kA at 240 V AC, dropping to 121 kA at 415 V and 440 V, then 75.6 kA at 500 V, and 3 kA at 690 V. At 415 V the 121 kA still covers most industrial service entrances. The 3-pole unit carries a shunt trip release (STL) and a configurable auxiliary switch block: two auxiliary switches, one trip alarm switch, and one electrical alarm switch (HQ). The basic switch assembly is order code 3VA20635HL360AA0. Power loss is 5.4 W maximum — negligible for panel thermal budgeting.
Panel fit — dimensions and mounting
The 63 A continuous rating is flat across the entire operating band — no derating curve to calculate for warm enclosures.
