What this 3VM1 MCCB is and where it fits
The Siemens 3VM1163-3ED16-0AA2 is a SENTRON 3VM1 molded case circuit breaker (MCCB) in a 160 A frame, configured as a 1-pole unit rated for 63 A continuous current. It's built for line protection with a TM210 thermal-magnetic release set to LI characteristic — meaning fixed thermal overload (Ir = 63 A, non-adjustable) and fixed instantaneous short-circuit pickup at 10 × In. That's a no-dial, no-tamper setup: what you see on the nameplate is what the branch circuit gets. Breaking capacity class N gives it 53 kA at 240 V AC and 7.5 kA at 415 V AC — enough to handle high-fault utility feeds in a lighting panel or a distribution subboard, but the 415 V number tells you this is a 240 V-optimized pole. If your panel's service voltage sits at 400/415 V three-phase, the 7.5 kA SCCR is the number that governs coordination; don't spec it into a 65 kA@415 V main without checking the upstream breaker's let-through.
Thermal derating and operating range
The 63 A rating holds flat from 40 °C through 50 °C ambient. Above that it starts to step down: 62 A at 55 °C, 61 A at 60 °C, 60 A at 65 °C, and 58 A at 70 °C. If your enclosure sits near a heat source or in a non-ventilated cabinet, use the 55 °C row as your design-in point — that's where the margin starts to shrink. Operating ambient range is -25 °C to 70 °C; storage range is -40 °C to 80 °C.
Physical integration and connections
Front-connected box terminals accept the main circuit conductors. The 1-pole form factor fits standard DIN-rail or panel-mount enclosures; IP40 on the front face keeps dust out of the mechanism in a clean indoor panel. No auxiliary contacts are fitted (0 CO contacts), and the neutral conductor is not switchable or retrofittable — this pole handles the phase only. No communication function, no motor drive option, no ground-fault monitoring built in.