What this MCCB delivers
The Siemens SENTRON 3VA2116-5KP32-0KL0 is a 3-pole molded case circuit breaker rated for 160 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. That means it holds its full 160 A rating in a warm panel, which is the spec that matters when you're stacking breakers in a confined enclosure. Breaking capacity hits 187 kA at 240 V, 121 kA at 415/440 V, and still clears 75.6 kA at 500 V — high enough for most industrial service-entrance or distribution applications where fault current is substantial. At 690 V it drops to 3.7 kA, so verify your system voltage against that curve before committing the BOM line.
Panel fit and dimensions
Dimensions are 105 mm wide, 181 mm tall, and 86 mm deep — a standard 3-pole MCCB footprint that drops into most SENTRON distribution panels and switchgear assemblies without re-drilling the mounting plate. The design is line-protection focused (not motor-protection), with a shunt trip release (STL) built in and provision for up to two auxiliary switches plus a trip alarm and an electrical alarm switch. Communication function is onboard, so it can report status to a higher-level control system.
What the ratings mean for your decision
The 160 A continuous rating is flat across the 40–70 °C range — unusual for an MCCB, which typically derates above 40 °C. That flat curve means you can install it in a hot enclosure or near other heat sources without losing headroom. Maximum interrupting capacity of 1 600 A frames the breaker's ability to handle short-circuit currents; the minimum 240 A rating is the lower bound of the adjustable thermal-magnetic trip range. The trip indicator and voltage trigger give clear visual and electrical status for troubleshooting.