What this MCCB delivers — and what the ratings mean for your panel
The Siemens 3VA2116-7JP42-0AA0 is a SENTRON molded case circuit breaker rated for 160 A continuous current, built around the ETU550 electronic trip unit. That trip unit gives you adjustable overload and short-circuit protection curves — not a fixed thermal-magnetic snap, so you can coordinate selectively with downstream breakers on a distribution board. The 4-pole construction means it switches all three phases plus neutral, which matters for TN-S or TN-C-S systems where you want the neutral isolated under fault. Breaking capacity is the headline number that decides whether this breaker clears a fault before the upstream device takes the hit. At 240 V it's rated for 330 kA — that's utility-grade fault current, typical for a main breaker position close to a large transformer. At 415 V and 440 V it still holds 242 kA, which covers most industrial low-voltage switchgear. Only at 690 V does it drop to 3.7 kA, so if your line side is a 690 V supply, this is not the breaker for that bus — you'd need a higher-rated frame or a current-limiting design. The 160 A rating holds across the full 40 °C to 70 °C ambient range, so no derating headache in a warm enclosure.
Panel fit and integration
Dimensions are 86 mm deep, 140 mm wide, 181 mm tall. The 4-pole frame takes up the same width as a standard 4-pole MCCB — plan for a 140 mm-wide slot in the switchgear lineup. Front IP40 protection means it's fine inside a closed panel but not for washdown environments. The ETU550 supports communication functions, so you can pull trip data and status over the bus if your system uses SENTRON communication modules.