That makes it a fit for general-purpose lighting and socket-outlet circuits, not for motor-starting duty where higher inrush would nuisance-trip a B-curve device. Interrupting capacity is 6 kA at 277 VAC and 10 kA at 125 VDC. The 10 kA DC rating covers battery-backed or DC distribution circuits — telecom shelters, UPS output panels, solar combiner boxes. Rated voltage is 277 VAC and 125 VDC. The 277 VAC rating matches 277/480 V wye systems common in North American commercial lighting panels. The 125 VDC rating covers standard telecom and control voltages.
ABB S202M-B10 S200M MCB, 2-Pole 10A Curve B, 6kA
MPNS202M-B10
ABB S200M series, S202M-B10 miniature circuit breaker, 2-pole, 10 A, Trip Curve B, DIN rail mount, 6 kA interrupting at 277 VAC.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Amps | 10 |
| Type | Trip Curve B |
| Poles | 2 |
| Mounting | DIN Rail |
| Volts AC | 277 |
| Volts DC | 125 |
| Breaking capacity | 6 kA |
| Interrupt rating DC | 10 kA |
Product details
Frequently asked questions
Where can I buy the S202M-B10 and get a price?
The S202M-B10 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commercial offer.
What does the 10 A rating on the S202M-B10 mean for my circuit?
The 10 A rating is the continuous current the breaker carries without tripping. For a 10 A Curve B MCB, the thermal element holds 10 A indefinitely under normal conditions; the magnetic trip clears short-circuit faults at 30–50 A (3–5× rated).
MPN
S202M-B10