What this MCCB delivers on the line side
The SENTRON 3VA1116-5ED26-0AA0 is a 2-pole molded case circuit breaker (MCCB) designed for line protection in distribution panels. Its 160 A continuous rating holds flat from 40 °C through 50 °C (–), then derates to 150 A at 70 °C — useful when the breaker sits near other heat sources in a sealed enclosure. The TM210 thermal-magnetic release provides fixed thermal and magnetic trip curves, so no adjustment dials to set or mis-set during commissioning. Breaking capacity is the headline: 187 kA at 240 V AC and 121 kA at 415 V AC. That 187 kA figure means this breaker can safely interrupt a fault current up to 187,000 A without rupturing — critical for high-available-fault-current installations like large transformer secondaries or industrial service entrances. The 121 kA at 415 V still covers most European industrial networks. For DC applications, the rated operating voltage is 250 V DC; the manufacturer directs users to the 3VA device manual for DC switching power values.
Physical fit and panel integration
Dimensions: 70 mm deep, 50.8 mm wide, 130 mm tall. The 50.8 mm width is a standard 2-inch footprint — two pole spaces on a DIN rail or panel-mount base. Depth of 70 mm leaves clearance for rear-connected busbars or cable lugs in a typical 200 mm deep enclosure. Front protection is IP40, meaning tools or fingers won't contact live parts, but the breaker is not sealed against dust ingress — mount it inside a rated enclosure for washdown or outdoor duty. Maximum power loss is 25.34 W — relevant for thermal budgeting inside a multi-breaker panel. Operating temperature range is -25 °C to 70 °C; storage range extends from -40 °C to 80 °C. The insulation voltage is rated 500 V, confirming suitability for 480/277 V and 400/230 V systems with margin.