It carries a 100 kA breaking capacity at 400 V (also at 240 V and 500 V), dropping to 10 kA at 690 V — the high fault-interrupt rating means it can be used upstream in high-capacity distribution panels without requiring a separate backup fuse for most installations.
Clearance requirements: 50 mm upwards and downwards, 30 mm at the sides, zero forwards and backwards, so it can be packed tightly against a backplane or adjacent devices.
Protection and ratings
No ground fault detection on this variant. The fuse backup coordination is specified: gL/gG 25 A at 400 V and 500 V, gL/gG 20 A at 690 V, meaning a downstream fuse can be sized to that curve without coordination gaps.
Comparison with 3RV2011-0BA20
The 3RV2011-0BA20 is a standard motor-protective circuit breaker (not transformer-rated) with a lower breaking capacity and different trip curve. If your panel was specified around the 3RV2011-0BA20, the 3RV2411-1CA20 will physically drop in without rewiring, but verify the trip curve matches your transformer's inrush profile.
