The SENTRON 3VA1220-5EF42-0DA0 is a 4-pole molded case circuit breaker (MCCB) rated 200 A at 40 °C, designed for line protection in distribution panels. It carries a TM240 thermal-magnetic overcurrent release and an integrated undervoltage release (UVR), so it drops the load if control voltage is lost — a standard requirement for safety circuits and remote trip schemes. The rated insulation voltage is 800 V, and the interrupting ratings span 187 kA at 240 V down to 17 kA at 690 V, giving the selectivity headroom needed for high-fault-capacity installations.
Breaking capacity and thermal derating
The interrupting capacity drops with system voltage: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, 30 kA at 500 V, and 17 kA at 690 V. That's enough SCCR headroom for most industrial service-entrance and feeder applications, but if your fault current at the point of installation exceeds the 690 V figure, you'll need a current-limiting upstream device. The continuous current rating holds at 200 A from 40 °C through 50 °C, then derates linearly to 176 A at 70 °C — the full thermal curve is on the nameplate, so panel builders can size for elevated ambient without guessing.
Dimensions and panel fit
The case measures 70 mm deep, 140 mm wide, and 158 mm high. That's a standard 4-pole MCCB footprint for the 200 A frame class — it fits existing 3VA1 cutouts and bus-bar centers without re-drilling the backplate. The 70 mm depth leaves clearance behind a 200 mm deep enclosure for wiring and lug access.
Environmental and approvals
Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C. Maximum power loss is 44.5 W at rated load — factor that into enclosure thermal calculations if the panel is tightly packed. The design includes an undervoltage release (UVR) as the auxiliary release; no ground-fault monitoring or communication function is built in. The 3VA series carries UL, CSA, and IEC certifications per the SENTRON platform.