What this MCCB is and where it fits
The Siemens 3VA2116-7KP36-0AA0 is a SENTRON 3VA2 molded case circuit breaker (MCCB) rated for 160 A continuous current, built around the ETU850 electronic trip unit. It is a 3-pole device designed for line protection in distribution panels and industrial switchboards, with onboard communication capability for integration into monitored power systems.
Breaking capacity and what it means for your fault-current study
This MCCB delivers 330 kA interrupting capacity at 240 V AC, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.7 kA at 690 V. The 330 kA at 240 V is the headline figure — it handles high available fault current at the service entrance or main distribution point without cascading failure upstream. The drop to 3.7 kA at 690 V is expected for a 160 A frame; that voltage range is typically not the primary application for this frame size.
Trip unit and protection curve
The ETU850 is an electronic trip unit with adjustable protection parameters — it supports LSIG (long-time, short-time, instantaneous, ground-fault) functions, though this variant ships without ground-fault monitoring. The trip indicator is not fitted on this order code, so visual trip indication is not available at the breaker face. Rated insulation voltage is 800 V, and the unit is designed for line protection duty.
Thermal performance across ambient temperature
The 160 A continuous rating holds flat from 40 °C through 70 °C ambient — no derating needed across the typical panel temperature range. Maximum power loss is 25.5 W at rated load. Operating temperature range is -25 °C to 70 °C, storage from -40 °C to 80 °C.
Physical fit and panel integration
Dimensions are 181 mm high, 105 mm wide, 86 mm deep — a standard 3-pole MCCB footprint for the 3VA2 frame. Front protection is IP40, suitable for enclosed panel mounting where tools are required to access live parts. The unit accepts screw-type lug connections; no special adapter plate needed for most switchboard cutouts.