SENTRON 3VA2 MCCB for motor protection — 160 A, flat derating curve
Three-pole construction, with a maximum interrupting rating of 330 kA at 240 V AC, stepping down to 242 kA at 415/440 V, 187 kA at 500 V, and 4.5 kA at 690 V — the SCCR curve lets you coordinate downstream without oversizing for the available fault current at your service voltage.
The flat thermal curve up to 70 °C means you don't have to open the enclosure or add forced cooling when the panel runs hot; the breaker holds its full 160 A. Maximum power loss of 19.7 W is the heat the breaker dissipates at rated current — relevant for enclosure thermal calculations, especially in a multi-breaker lineup on a common bus. No undervoltage release fitted; if you need UVR, that's a different variant or an add-on module.
Panel integration — dimensions and mounting
The 3VA2 family mounts on a DIN rail or can be screw-mounted to a backplate; the 105 mm width (4.13 in) is a standard 3-pole MCCB footprint, so it drops into existing panel cutouts sized for similar-frame breakers.