The Siemens SENTRON 3VA2116-6HN32-0AH0 is a 3-pole molded case circuit breaker rated for 160 A continuous current across the full 40–70 °C ambient range — no derating needed up to that ceiling. Its interrupting capacity hits 242 kA at 240 V and 187 kA at 415/440 V, making it a fit for high-fault utility or industrial service-entrance panels where SCCR headroom is tight.
At 690 V the breaking capacity drops to 3.7 kA — this breaker is designed for low-voltage distribution up to 500 V where it still delivers 121 kA. The 160 A frame and 800 V rated insulation voltage support line protection in 400 V class switchgear with full selectivity against downstream 63 A MCCBs when coordinated per IEC 60947-2.
Auxiliary switching and monitoring
The basic switch core is order code 3VA21166HN320AA0.
Operating environment and power loss
Maximum power dissipation is 25.5 W at rated load — plan for ventilation or spacing in dense panels. The 181 mm height and 105 mm width match standard MCCB cutouts; the 86 mm depth leaves room for rear-connection busbars.