Product overview
The Siemens SENTRON 3VA1080-3ED36-0BA0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, with an 80 A continuous current rating at 40 °C and a TM210 thermal-magnetic overcurrent release. Breaking capacity reaches 75.6 kA at 240 V AC, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at both 500 V and 690 V — giving solid fault-clearing headroom across common industrial voltage levels. Rated insulation voltage is 800 V, and maximum power loss is 21.7 W.
Thermal derating and ambient limits
Current rating holds at 80 A from 40 °C up to 50 °C, then derates to 78 A at 55 °C, 77 A at 60 °C, 75 A at 65 °C, and 74 A at 70 °C — useful when the breaker sits in a warm enclosure or near other heat sources. Operating temperature range is -25 °C to +70 °C; storage range is -40 °C to +80 °C.
Auxiliary release and integration
Includes an undervoltage release (UVR) as the auxiliary release type, allowing the breaker to trip on loss of control voltage — common in safety circuits or emergency-stop chains. No communication function or ground-fault monitoring version is fitted; this is a straightforward line-protection MCCB for standard distribution panels.