The 50 A continuous rating and Trip Curve D (magnetic trip between 500 and 1000 A, thermal trip at 62.5 A) make this MCB suited for motor and transformer branch circuits where inrush currents are higher than resistive loads. The 1-pole format occupies a single 17.5 mm module on the DIN rail, leaving room for additional circuits in a crowded enclosure. IP20 rating on the breaker body is standard for panel-mount; IP40 when the terminal cover is fitted.
ABB S201-D50 MCB 1P D 50A 277VAC, 6kA
MPNS201-D50
ABB S201-D50, System Pro M Compact S200 series, 1-pole MCB, 50 A, Trip Curve D, 277 VAC, 6 kA interrupting rating.
$13.97Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Amps | 50 |
| Type | Trip Curve D |
| Poles | 1 |
| Mounting | DIN Rail |
| Volts AC | 277 |
| Breaking capacity | 6 kA |
Product details
Frequently asked questions
Where can I buy S201-D50 and how do I get a price?
The S201-D50 is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time.
What is S201-D50's listed amps and trip curve?
The S201-D50 is rated 50 A with a Trip Curve D characteristic (magnetic trip 500–1000 A, thermal trip 62.5 A).
Will S201-D50 drop into a panel that was specified around S202M-C63 without rewiring?
No — the S202M-C63 is a 2-pole, 63 A, Curve C breaker; the S201-D50 is 1-pole, 50 A, Curve D. They are not drop-in interchangeable; the panel wiring and protection coordination would need to be re-evaluated.
MPN
S201-D50