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ABB S263-C25 — Miniature Circuit Breakers (MCB)

ABB S263-C25 Din Rail MCB, C-Curve 25A, Current Production

MPNS263-C25

ABB S263-C25, C-curve 25A DIN-rail miniature circuit breaker, current production, 0.94 kg.

$125.32Ref. price · indicative, final on quote
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

S263-C25 — Specifications
ParameterValue
Weight0.94 kgs

Product details

Panel Fit and Sourcing Reality

What the C-Curve and 25 A Rating Mean

The C-curve means the magnetic trip operates at 5 to 10 times the rated current (125–250 A instantaneous), so it holds through the startup surge of a 5.5 kW motor or a bank of LED drivers without nuisance tripping, but still clears a hard short fast enough to protect the cable. For resistive loads with no inrush, a B-curve would trip faster; for high-inrush transformers, a D-curve might be needed — but the C-curve is the general-purpose choice for mixed industrial and commercial panels.

Frequently asked questions

Where can I buy S263-C25 and what is the lead time?

S263-C25 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at the time of quote — submit an RFQ for a firm delivery estimate.

What is the closest functional second-source for S263-C25 — S273-K40A?

The S273-K40A is a K-curve 40 A breaker in the same ABB 263 family, same DIN-rail footprint. It is not a direct functional second-source because the trip curve and ampacity differ — verify the load and coordination study before substituting.

Will S263-C25 drop into a panel specified around S273-K40A without rewiring?

No. The S263-C25 is a C-curve 25 A breaker; S273-K40A is a K-curve 40 A. Same footprint, but the trip characteristic and rating are different — a substitution requires a coordination review.

What compliance documentation does ABB provide for S263-C25?

The evidence does not list specific compliance documentation (RoHS, REACH, UL, IEC) for this part. Standard ABB MCB documentation typically includes a declaration of conformity and product data sheet — request these with your RFQ.

MPN
S263-C25