160 A MCCB with ETU320 — what the ratings mean for your panel
The Siemens 3VA2116-8HL36-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated for 160 A continuous current with an ETU320 electronic trip unit. That 160 A holds flat across the full operating temperature range from 40 °C to 70 °C — no derating curve to chase in a warm enclosure. The ETU320 gives you adjustable overload and short-circuit protection curves, so you can coordinate selectively with downstream feeders rather than relying on a fixed thermal-magnetic response. Breaking capacity is the headline number that decides fault-clearing confidence. At 240 V this MCCB interrupts 440 kA; at 415 V and 440 V it holds 330 kA; at 500 V it still delivers 220 kA; at 690 V it drops to 52.5 kA. For a 160 A frame those are high-interrupting ratings — the breaker can sit upstream of a large transformer or a bus feeding multiple motor starters without needing a current-limiting fuse ahead of it. Three-pole construction, line-protection design, no undervoltage release, no ground-fault monitoring, no communication module — this is a straightforward main or feeder breaker. The IP40 front protection means it is suited for enclosed panel mounting where the door shields the front face. Dimensions are 105 mm wide, 181 mm high, 86 mm deep — a standard 3-pole MCCB footprint that fits existing SENTRON mounting plates and busbar systems.
Lifecycle and compliance — active, documented, traceable
Storage temperature range is -40 °C to 80 °C; operating range is -25 °C to 70 °C. Maximum power loss at rated current is 19.7 W — relevant for thermal calculations in a sealed enclosure.