The Siemens SENTRON 3VA2116-5HN32-0CA0 is a 3-pole molded case circuit breaker rated for 160 A continuous current, configured for line protection with an ETU350 electronic overcurrent release. At 240 V it interrupts 187 kA, dropping to 121 kA at 415 V and 440 V, 79 kA at 500 V, and 4.25 kA at 690 V — the high interrupting capacity at common distribution voltages makes this a fit for main or feeder breakers in industrial switchboards where fault current runs high.
Current rating and thermal derating
Rated continuous current Iu is 160 A, held flat from 40 °C through 50 °C. Above that it derates: 154 A at 55 °C, 148 A at 60 °C, 142 A at 65 °C, 136 A at 70 °C. If the panel ambient runs above 50 °C, the continuous load must be reduced accordingly — a common oversight when sizing for a warm enclosure.
Dimensions and panel fit
The breaker measures 181 mm high, 105 mm wide, and 86 mm deep. The 105 mm width is the standard 3-pole MCCB footprint for this SENTRON frame size; it mounts directly onto a DIN rail or panel-mount adapter. Verify the existing busbar or lug kit spacing against the 105 mm pole pitch before ordering.
Auxiliary and release configuration
No auxiliary contact version is fitted, no communication function, no phase failure detection, no ground fault monitoring. The undervoltage release (UVR) is present — if the control voltage drops, the breaker trips. Maximum power loss is 28 W. Mechanical endurance is 20 000 operations. Rated insulation voltage is 800 V.