What the ratings mean for fit
The Siemens SENTRON 3VA2116-7JP36-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for 160 A continuous current across the full 40 °C to 70 °C ambient range — no derating needed up to that ceiling. That 160 A holds steady at 40 °C, 45 °C, 50 °C, 55 °C, 60 °C, 65 °C, and 70 °C, so it's sized for a warm panel without a temperature haircut. The interrupting capacity hits 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.8 kA at 690 V — that 330 kA at 240 V tells you it's built for high-fault industrial services, not light commercial. The ETU550 electronic trip unit gives you adjustable long-time delay (tr) from 0.5 s to 20 s and short-time delay (tsd) up to 0.5 s, so you can coordinate selectively downstream without nuisance tripping on motor inrush.
Panel integration and footprint
The 3VA2116-7JP36-0AA0 measures 105 mm wide, 181 mm tall, and 86 mm deep — a 3-pole MCCB that fits standard SENTRON mounting footprints. The 86 mm depth (3.4 in) matters when you're laying out a gland plate or door clearance; it's shallow enough for most 200 mm deep enclosures. Front IP40 protection means it's sealed against tools and fingers on the face, but the body isn't rated for washdown — keep it in a dry indoor panel.
Compliance and approvals
Rated insulation voltage Ui is 800 V, and the reference code per DIN EN 81346-2 is Q (circuit protection). The ETU550 release design supports selective coordination. Storage range spans -40 °C to 80 °C, operating range -40 °C to 70 °C — the storage max is higher than operating, which governs handling, not running. Maximum power loss is 25.5 W at rated current, so account for that in your panel thermal budget.