Line protection MCCB with TM240 release
The Siemens 3VA1116-4EF46-0AM0 is a SENTRON molded case circuit breaker (MCCB) designed for line protection, with a 4-pole configuration and a TM240 thermal-magnetic overcurrent release. It carries a continuous current rating of 160 A at 40 °C, derating to 150 A at 70 °C — useful for panels with elevated ambient temperatures. Breaking capacity hits 121 kA at 240 V and 75.6 kA at 415 V, giving solid SCCR headroom for most industrial distribution boards.
Breaking capacity across voltage levels
Short-circuit performance varies by system voltage: 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V. That 11.9 kA at 690 V is the limiting figure — if your fault current exceeds that at 690 V, you need a higher-rated frame.