What the ratings mean for fit
The 3VA2116-5JQ32-0DL0 is a SENTRON 3-pole molded case circuit breaker rated for 160 A continuous current (Iu) with an ETU560 electronic trip unit. The breaking capacity climbs to 187 kA at 240 V AC and stays at 121 kA through 440 V AC — at 690 V it drops to 4.25 kA, so this is a high-interrupting-capacity frame sized for low-voltage main feeders or large subfeeds where fault current is high. The 800 V rated insulation voltage (Ui) means it can sit on a 690 V line without derating the insulation. Temperature derating is already baked in: at 40 °C through 50 °C it holds the full 160 A; at 55 °C it drops to 154 A, and at 70 °C it's 136 A. If the panel ambient runs hot, the continuous current you can actually pull is the derated figure, not the 160 A label. The ETU560 is a microprocessor-based release with LSI (long-time, short-time, instantaneous) protection curves, plus ground-fault monitoring via summation current on the L-conductor. The integrated undervoltage release (UVR) trips the breaker when control voltage drops — common in emergency-stop or mains-monitoring circuits. Communication function is built in, so the breaker can report status and trip events to a higher-level system. Auxiliary contacts are included: 2 auxiliary switches, 1 trip alarm switch, and 1 electrical alarm switch (HQ version). That's enough to signal remote status without adding an external contact block.
Panel integration and wiring
Dimensions are 105 mm wide, 181 mm high, 86 mm deep — a standard 3-pole MCCB footprint for a 160 A frame. Mounts on a DIN rail or directly to a backplate via the screw terminals. Power loss is 28 W maximum at rated current; factor that into the enclosure thermal budget if the panel is sealed. The basic switch is order code 3VA2116-5JQ32-0AA0, and the integrated auxiliary trip is 3VA9608-0BB25 — these are the internal sub-assemblies if you ever need a replacement release or contact module.