What the ratings mean for your panel
The Siemens SENTRON 3VA1116-5EF42-0AE0 is a 4-pole molded case circuit breaker rated for line protection, carrying a continuous current of 160 A up to 50 °C and derating to 150 A at 70 °C — so the full 160 A is available in a typical 40 °C panel environment without headroom loss. TM240 thermal-magnetic release provides fixed overload and short-circuit protection; interrupting ratings span 187 kA at 240 V down to 17 kA at 690 V. Rated insulation voltage is 800 V, so it can be applied in 690 V systems with margin, and the maximum power loss of 38 W matters for enclosure thermal budgeting — especially in a sealed, non-ventilated panel.
Panel fit and dimensions
Dimensions are 130 mm height, 101.6 mm width, and 70 mm depth — a 4-pole MCCB that fits standard Siemens SENTRON mounting feet and busbar systems. The design includes provision for up to 4 auxiliary switches HQ, but no undervoltage release or ground-fault monitoring is built in — those are add-on accessories if needed.