ABB S200MUC series, S202MUC-B50, 2-pole miniature circuit breaker, Trip Curve B, 50 A, 277 VAC / 500 VDC, 6 kA AC / 10 kA DC interrupting capacity, DIN rail mount.
| Parameter | Value |
|---|---|
| Amps | 50 |
| Type | Trip Curve B |
| Poles | 2 |
| Mounting | DIN Rail |
| Volts AC | 277 |
| Volts DC | 500 |
| Breaking capacity | 6 kA |
| Interrupt rating DC | 10 kA |
On a 277 VAC line it interrupts faults up to 6 kA; on a 500 VDC circuit it handles 10 kA. That DC interrupting capacity is notably higher than the AC figure, which matters for battery banks or DC bus protection where fault currents can be sustained.
The 2-pole footprint takes two module widths (roughly 36 mm) in the enclosure. No special busbar or comb needed for the line side — standard DIN-rail accessories fit.
The S202MUC-B50 is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing — no static stock count or list price is published here.
Rated 50 A with Trip Curve B (trips at 3–5× In). Two poles, rated 277 VAC / 500 VDC with interrupting capacities of 6 kA AC and 10 kA DC.
The S202MUC-B50 and the S202M-B10 share the same 2-pole DIN-rail footprint and terminal layout. The difference is the amp rating (50 A vs 10 A) and the DC voltage rating (500 VDC vs 125 VDC). Physically it fits the same slot; electrically you must verify the load and fault-current coordination match the 50 A rating.
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