SENTRON 3VA1116-5EF42-0BC0 — 160 A 4-Pole MCCB for Line Protection
The Siemens SENTRON 3VA1116-5EF42-0BC0 is a 4-pole molded case circuit breaker (MCCB) rated 160 A continuous, designed for line protection in distribution panels. Its breaking capacity hits 187 kA at 240 VAC and 121 kA at 415 VAC — figures that handle high-fault utility feeds without cascading upstream. The 4-pole frame means it switches all three phases plus neutral, common for TN-S or TN-C-S systems where neutral protection is required. Thermal derating is minimal through 50 °C (still 160 A), then drops to 158 A at 55 °C and 150 A at 70 °C — so in a warm enclosure the full 160 A rating holds without margin loss under normal conditions. Power loss at rated load is 40.5 W, which matters for enclosure ventilation planning.
Physical Fit and Integration
Dimensions: 70 mm deep, 101.6 mm wide, 130 mm tall. The 4-pole width (101.6 mm) is standard for this frame class — verify panel cutout and busbar spacing before committing. Mounts on a DIN rail or direct screw-fix to the backplate; the 70 mm depth leaves clearance for standard gland plates and wiring ducts. Comes pre-configured with 2 auxiliary switches (HQ type) and an undervoltage release (UVR) — the UVR trips the breaker when control voltage drops, preventing automatic reclosure after a power loss. The base switch variant is 3VA11165EF420AA0; this order code adds the UVR and aux switches as factory-installed options.
Breaking Capacity Across Voltage Tiers
Breaking capacity is voltage-dependent: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V. The 415 V figure (121 kA) is the typical benchmark for 400 V class distribution — sufficient for most industrial service entrances. At 690 V the 17 kA rating limits application to lower-fault systems or requires upstream current limitation.