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ABB S802S-B63 — 2-Pole MCB (DIN Rail)

S802S-B63 High Performance MCB, 63A, Curve B, 2 Pole

MPNS802S-B63

ABB S802S-B63, High Performance Miniature Circuit Breaker, 2 Pole, 63 Amp, Trip Curve B, DIN Rail Mount, 230 VAC, 50 kA Interrupt Rating.

$135.89Ref. price · indicative, final on quote
ABB S802S-B63 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

S802S-B63 — Specifications
ParameterValue
Amps63
TypeTrip Curve B
Poles2
MountingDIN Rail
Volts AC230
Breaking capacity50 kA

Product details

The ABB S802S-B63 is a 2-pole high-performance miniature circuit breaker (MCB) rated at 63 amps with a Trip Curve B characteristic, designed to snap onto a DIN rail in a standard distribution or control panel.

Rated current is 63 A continuous, so the breaker will hold that load indefinitely at 40 °C ambient without nuisance tripping, assuming proper thermal derating for panel fill and adjacent devices. The 2-pole configuration switches both line and neutral (or both phases in a split-phase system), giving full isolation on the load side.

Panel Fit & Integration

The 2-pole width is 36 mm (2 modules of 18 mm each), so it takes up two positions on the rail — plan your gland-plate fill and busbar spacing accordingly. Rated for 230 VAC phase-to-phase or phase-to-neutral, which covers most single-phase and split-phase industrial control circuits.

Frequently asked questions

Where can I buy the S802S-B63 and get a price?

The S802S-B63 is sourced to order through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time.

What is the closest functional second-source to the S802S-B63?

The closest functional peer is the S202M-C63, which is also a 2-pole, 63 A MCB on DIN rail. Key difference: the S802S-B63 uses Trip Curve B (3–5× In magnetic trip) and offers a 50 kA interrupting rating at 230 VAC, while the S202M-C63 uses Trip Curve C (5–10× In) and has a 6 kA interrupting rating at 277 VAC. The S802S-B63 is the higher-fault-capacity option for industrial sub-boards; the S202M-C63 is a standard-duty MCB for lighter commercial panels.

Will the S802S-B63 drop into a panel specified around the S202M-C63?

Yes, same 2-pole DIN-rail footprint — 36 mm width. The S802S-B63 will physically replace an S202M-C63 without rewiring or busbar changes. But check the trip curve: Curve B trips faster on inrush than Curve C, so if the original panel fed motor or transformer loads that relied on the C-curve's higher magnetic threshold, you may get nuisance tripping. Also verify the available fault current — the S802S-B63's 50 kA rating is far higher than the S202M-C63's 6 kA, so it's fine on high-fault panels but not a direct electrical drop-in for the original design intent.

What is the interrupting rating of the S802S-B63?

The S802S-B63 has a 50 kA interrupting capacity at 230 VAC. That means it can safely clear a bolted fault current up to 50,000 amps without catastrophic failure — suitable for high-fault-capacity industrial distribution boards close to a transformer.

MPN
S802S-B63