BOM / RFQ

ABB S802U-K20 MCB, 20 A, Trip Curve K, 2-Pole, 50 kA

MPNS802U-K20

ABB S802U-K20 miniature circuit breaker, 20 A, Trip Curve K, 2-pole, 240/415 VAC, 50 kA interrupting rating, DIN rail mount.

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ABB S802U-K20 datasheet (PDF)

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

S802U-K20 — Specifications
Parameter	Value
Amps	20
Type	Trip Curve K
Poles	2
Mounting	DIN Rail
Volts AC	240
Breaking capacity	50 kA

Product details

S800U series — high-performance DIN rail platform

The S802U-K20: This breaker belongs to ABB's S800U high-performance miniature circuit breaker family, designed for selective coordination in commercial and industrial distribution boards where the upstream breaker must stay closed during a downstream fault.

Current production — no obsolescence signal

ABB provides full compliance documentation: CE marking per Low Voltage Directive 2014/35/EU, RoHS and REACH declarations, and IEC/EN 60898-1 certification for the S800U series.

Frequently asked questions

Where can I buy S802U-K20 and how do I get a price?

The S802U-K20 is sourced to order against an RFQ through independent distribution. Submit a request for a firm quote; availability and current pricing are confirmed at that time.

What is S802U-K20's interrupting rating?

The S802U-K20 carries a 50 kA interrupting rating at 240 VAC, meaning it can safely clear a fault current up to that level without welding contacts or cascading damage upstream.

What does Trip Curve K mean for this breaker?

Trip Curve K means the magnetic trip operates at 8–12× the rated current (160–240 A for this 20 A unit), so it passes the high inrush of motor and transformer loads without nuisance tripping while still providing short-circuit protection.