It carries a 100 A frame (adjustable from 20 A initial to 100 A full-scale) and delivers a 187 kA interrupting capacity at 240 V AC, dropping to 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V. The breaker includes a communication function and is equipped with 4 auxiliary switches (HQ design) plus a basic switch (order code 3VA21105JQ320AA0). Ground-fault monitoring is implemented via summation current formation on the L-conductor. This makes the unit suitable for integration into monitored distribution systems where remote status and fault indication are required.
Thermal performance and derating
Maximum power loss is 10 W.
Physical integration and mounting
Dimensions are 181 mm height, 105 mm width, and 86 mm depth. The 86 mm depth means it clears most shallow enclosure back-panels without protruding into wiring gutters. No undervoltage release or voltage trigger is fitted on this variant.