Breaking capacity hits 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V — so it handles high-fault utility feeds and transformer secondaries without cascading upstream. That simplifies BOM management: one order code per amp rating, no loose parts to lose during panel build.
Panel fit and thermal derating
Dimensions are 70 mm deep, 76.2 mm wide, 130 mm tall — a standard SENTRON 3VA footprint that drops into existing DIN-rail or screw-mounted panel layouts. Width at 76.2 mm means it occupies three modular spaces on a 25 mm grid; plan your gland-plate fill factor accordingly. Thermal derating is minimal up to 50 °C — still rated 32 A. At 55 °C it drops to 30.72 A, at 60 °C to 30.08 A, at 65 °C to 29.44 A, and at 70 °C to 28.8 A.
What the auxiliary release does
The auxiliary contact version is 2 HQ switches (high-rupturing-capacity changeover contacts), rated for signaling to a PLC input or status lamp. If you need a shunt trip instead of UVR, this isn't the variant; the UVR is fixed at order-code level.