BOM / RFQ

ABB S503-K3

MPNS503-K3

Breaker, Miniature, 3-Pole, 3 Amp|Miniature Circuit Breaker; 3-Poles, 3 Amps, 277 VAC, K Tripping Characteristic.

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ABB S503-K3 datasheet (PDF)

Source DocumentedChannel stated on listing & quote

Condition PhotosReal unit photos / video on request

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Worldwide DispatchDHL/FedEx — transit quoted per order

Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

S503-K3 — Specifications
Parameter	Value
Amps	3
Type	Trip Curve D
Poles	3
Mounting	DIN Rail
Volts AC	230
Breaking capacity	25 kA

Pricing & Availability

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Volume discounts available

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*Sample & small orders welcome — quoted per order; a small handling charge may apply below MOQ.

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About the brand

ABB

ABB parts are sourced across every condition — factory-new current-production lines, new-old-stock, surplus, refurbished-and-bench-tested and used clean-pull units — through our independent distributor channels; each listing states its condition. Request a quote for live pricing, availability, and lead times.

View all ABB S503 Mcb 3 Pole parts →

ABB Series Alternatives & Replacements

Alternative models and sibling configurations in the same ABB series. For obsolete or discontinued parts, these models can serve as compatible replacements or functional alternatives for plant maintenance.

ABB S503-K3

Specifications

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