What this 80 A MCCB delivers
The Siemens SENTRON 3VA1116-4FE42-0AA0 is a 4-pole molded case circuit breaker rated for 80 A continuous current, with a TM220 thermal-magnetic overcurrent release designed for line protection in distribution panels. Its interrupting capacity reaches 121 kA at 240 V and 75.6 kA at 415 V, which means it can safely clear high-fault currents on the secondary side of a step-down transformer or a 400 V bus without cascading upstream — a key selectivity consideration for site electrical engineers. Thermal derating is minimal: the breaker carries 160 A at 40 °C ambient and still holds 150 A at 70 °C, so it runs cool in a crowded enclosure without nuisance tripping. The 70 mm depth and 101.6 mm width fit standard MCCB panel cutouts; the IP40 front rating means it is protected against solid objects larger than 1 mm but not sealed against moisture — suitable for indoor switchboards, not washdown environments.
Sourcing and lifecycle
No official successor has been announced for this order code. For a BOM line that requires this exact 80 A, 4-pole TM220 configuration, the 3VA1116-4FE42-0AA0 remains the direct fit.
Installation constraints
The breaker has no undervoltage release, no ground-fault monitoring, and no communication function — it is a standalone thermal-magnetic device with no auxiliary electronics. Verify your control scheme does not rely on shunt-trip or remote signaling before specifying. Maximum power loss is 38 W; ensure adequate ventilation in the panel to keep internal ambient below 70 °C operating limit. Storage temperature range of -40 to 80 °C means it can sit in an unheated warehouse or truck without damage, but the IP40 front does not protect against condensation — keep it in original packaging until installation.