Interrupting capacity hits 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V — enough headroom for most industrial service-entrance or feeder applications where high fault current is expected. Thermal derating is minimal up to 50 °C (still 20 A), then drops to 19.2 A at 55 °C, 18.8 A at 60 °C, 18.4 A at 65 °C, and 18 A at 70 °C.
The UVR coil drops the breaker if control voltage is lost, common for emergency-stop chains or undervoltage protection schemes. The auxiliary trip accessory is order code 3VA9608-0BB24, a separate line item if you need a shunt trip or additional signaling. No ground-fault monitoring or voltage-trip module is fitted on this variant.
Mechanical dimensions and panel fit
IP40 on the front face (finger-safe), no IP rating on the rear or sides.