The SENTRON 3VA2116-5HN32-0CH0 is a 3-pole molded case circuit breaker (MCCB) rated for 160 A continuous current, with a breaking capacity of 187 kA at 240 V AC and 121 kA at 415 V AC — that means it can safely interrupt fault currents up to those levels without welding its contacts or cascading the fault upstream. The UVR ensures the breaker drops out if control voltage falls below a set threshold — a standard requirement for safety circuits that need to isolate on loss of control power.
The undervoltage release requires a separate control voltage feed — verify polarity and voltage rating against the coil nameplate before energizing.
