SENTRON 3VA2220-7MS32-0DL0 — 200 A MCCB with Undervoltage Release
The Siemens SENTRON 3VA2220-7MS32-0DL0 is a 3-pole molded case circuit breaker (MCCB) rated for 200 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. Its adjustable thermal-magnetic trip unit covers a 600 A to 3 000 A short-circuit pickup band, letting you coordinate selectively downstream without swapping the breaker body. Interrupting capacity hits 330 kA at 240 V and holds 242 kA at 415 V and 440 V, then steps to 187 kA at 500 V and 5.2 kA at 690 V. That 330 kA figure at 240 V is the headline number for high-fault panels — it clears a bolted fault at that level without cascading upstream, which matters when the transformer secondary can deliver that kind of energy.
Built-in Undervoltage Release and Auxiliary Switch Complement
This variant ships with an undervoltage release (UVR) factory-installed — the UVR trips the breaker when line voltage drops below a set threshold, protecting motor starters and downstream controls from a brownout restart. The auxiliary switch complement includes two auxiliary switches, one trip alarm switch, and one electrical alarm switch, all in a single HQ block. That gives you four independent signal contacts for remote status, PLC input, or annunciator panel wiring without adding a separate accessory module.
Physical Fit and Panel Integration
The breaker measures 105 mm wide, 181 mm tall, and 86 mm deep. That 105 mm width is the standard 3-pole MCCB footprint for the SENTRON 3VA2 frame — it occupies three 35 mm DIN-rail module positions (each module is 17.5 mm, so 3 × 35 mm = 105 mm). The 86 mm depth means it clears most 200 mm deep enclosures with room for rear-mounted busbars or cable lugs. Panel builders should confirm gland-plate clearance for the line and load conductors at the rated 200 A.