What it is and what it does
The Siemens SENTRON 3VA2116-5JP32-0AE0 is a 3-pole molded case circuit breaker (MCCB) rated for 160 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. It is designed for line protection in distribution panels and switchgear, with a breaking capacity of 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 800 V rated insulation voltage covers most low-voltage industrial networks. The unit includes a communication function for integration into higher-level monitoring or control systems.
What the ratings mean for fit
The 160 A continuous rating is flat across the operating temperature band — no derating curve to calculate. The 187 kA interrupting rating at 240 V tells you this breaker can clear a fault at that level without upstream cascading; at 690 V the same unit still interrupts 3.7 kA. The 3-pole construction with 4 auxiliary switches (HQ design) gives you spare N/O and N/C contacts for status feedback or interlocking. The communication function means it can report trip events and load data over a bus — useful for a line-down root-cause trace.
Panel integration
The breaker measures 105 mm wide, 181 mm high, and 86 mm deep — a standard 3-pole MCCB footprint for DIN-rail or panel-mount enclosures. Operating temperature range is -25 °C to 70 °C, storage from -40 °C to 80 °C. Maximum power loss is 25.5 W, so factor that into enclosure thermal calculations if the panel is densely populated.