Breaking capacity reaches 220 kA at 240 V AC, 154 kA at 415 V, and 121 kA at 440 V — ample SCCR headroom for high-fault utility or transformer-fed switchboards. Rated insulation voltage is 800 V, and the breaker carries an 80 A frame at 40 °C through 50 °C with no derating; at 55 °C it holds 78 A, at 65 °C it holds 75 A, and at 70 °C it holds 74 A. This thermal profile suits panels in warm enclosures or near heat sources without oversizing.
With 220 kA at 240 V and 154 kA at 415 V, this MCCB sits at the top of the SENTRON 3VA1 frame for interrupting capacity — well above typical industrial service-entrance requirements. The high short-circuit ratings allow selective coordination with downstream breakers in a fully rated system, avoiding nuisance blackouts on a fault.
The supplied basic switch order code is 3VA11806EF320AA0.
Maximum power loss 21.7 W. The product brand is SENTRON, design is line protection, and the auxiliary release is an undervoltage release (UVR).