What it is and what it does
The Siemens SENTRON 3VA2116-5HL36-0AG0 is a 3-pole molded case circuit breaker (MCCB) rated for 160 A continuous current, designed for line protection in power distribution panels. Its interrupting capacity is 187 kA at 240 V AC, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V — the 240 V figure is the headline for high-fault utility feeds, while the 415/440 V ratings cover common industrial distribution voltages. The breaker carries its full 160 A rating across the entire 40 °C to 70 °C ambient range, meaning no thermal derating up to that ceiling — useful for crowded enclosures where internal temperature rise is a concern. It includes one auxiliary switch and one trip alarm switch (HP type) for remote status indication, and a trip indicator on the front plate for local fault identification.
Dimensions and panel fit
The breaker measures 105 mm wide, 181 mm high, and 86 mm deep — a standard 3-pole MCCB footprint that fits most DIN-rail or bolt-on panel layouts without requiring back-panel rework. Maximum power dissipation is 25.5 W at full rated load, which should be factored into enclosure thermal calculations but is typical for a 160 A frame.