Siemens SENTRON 3VA2116-5HM36-0AA0 — 160 A MCCB for Line Protection
The Siemens SENTRON 3VA2116-5HM36-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for 160 A continuous current, designed specifically for line protection in distribution panels. Its breaking capacity is 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V — the voltage-dependent curve means the interrupting rating drops sharply above 500 V, so verify the available fault current at your system voltage before specifying. The unit carries a rated insulation voltage of 800 V and maintains its full 160 A rating across the entire ambient temperature range from 40 °C to 70 °C — no derating required up to that ceiling.
Dimensions and Panel Fit
At 86 mm deep, 105 mm wide, and 181 mm tall, this MCCB fits standard Siemens SENTRON mounting footprints; the 105 mm width is the same across the 160 A frame size, so a panel laid out for a sibling in this family accepts the 3VA2116-5HM36-0AA0 without re-drilling the gland plate. Maximum power loss is 25.5 W — factor that into enclosure thermal calculations if the panel is densely populated.
Ground-Fault Monitoring and Protection Features
The breaker includes summation-current ground-fault monitoring on the L-conductor — it measures vector sum of phase currents to detect leakage to earth, which is useful for equipment protection in solidly-grounded systems. It does not include an undervoltage release, a voltage-trip trigger, or a communication function — this is a straight line-protection device with no auxiliary electronics.