What this MCCB is and what it does
The Siemens SENTRON 3VA2116-5HN36-0BH0 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's designed for line protection, meaning it sits at the incoming feed of a distribution panel or as the main disconnect for a machine, not for motor-circuit protection (no adjustable thermal or magnetic trip settings for motor starting). The interrupting capacity tells you where it can go: 187 kA at 240 V AC, 121 kA at 415 V or 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V. That 187 kA at 240 V is the headline number — it clears a massive fault without blowing apart, which matters when you're feeding a panel with high available fault current from a utility transformer or a large generator.
What the ratings mean for your panel
The 160 A frame is a common size for a main breaker in a panelboard or for feeding a sub-panel. The 3-pole configuration handles three-phase systems. The breaker includes an undervoltage release, 2 auxiliary switches, and 1 trip alarm switch.
Where to get it and what to expect
Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time. The operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C.