Siemens 3VA1180-6EF32-0CA0 — 80 A MCCB with UVR, 220 kA at 240 V
The Siemens SENTRON 3VA1180-6EF32-0CA0 is a 3-pole molded case circuit breaker (MCCB) rated 80 A continuous at 40 °C, designed for line protection in distribution panels. Its TM240 thermal-magnetic overcurrent release provides fixed thermal and magnetic trip settings for feeder and branch circuits. 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. An integrated undervoltage release (UVR) allows remote or emergency trip on loss of control voltage, common in safety disconnect chains. 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.
Breaking capacity and selectivity
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. At 690 V the rating drops to 17 kA, still adequate for most 690 V motor branch circuits. The high short-circuit ratings allow selective coordination with downstream breakers in a fully rated system, avoiding nuisance blackouts on a fault.
Mounting and panel fit
Dimensions: 130 mm height, 76.2 mm width, 70 mm depth. The 76.2 mm width is a standard 3-pole MCCB footprint — fits common Siemens panelboard and switchboard mounting patterns. No communication function, no ground-fault monitoring version; it is a pure line-protection breaker with undervoltage release. The supplied basic switch order code is 3VA11806EF320AA0.
Environmental and compliance
Operating temperature range -25 °C to +70 °C; storage from -40 °C to +80 °C. Maximum power loss 21.7 W. The product brand is SENTRON, design is line protection, and the auxiliary release is an undervoltage release (UVR). Compliance documentation (RoHS, REACH, UL, IEC) is provided by the manufacturer and available on request.