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Siemens 5SY7432-8CC — Miniature Circuit Breakers (MCB)

Siemens 5SY7432-8CC SENTRON MCB, 32 A, 4P, D Curve, 20 kA

MPN5SY7432-8CC

Siemens SENTRON 5SY7432-8CC, 4-pole miniature circuit breaker, D characteristic, 32 A rated current, 20 kA breaking capacity at 400 V AC.

Siemens 5SY7432-8CC datasheet (PDF)
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

5SY7432-8CC — Ratings
ParameterValue
Overvoltage categoryIII
5SY7432-8CC — Mechanical
ParameterValue
Width72 mm
Height90 mm
Depth76 mm

Product details

The D curve allows a short, high-magnitude surge before the magnetic trip fires, so it's the right pick for inductive loads that draw 10–20× rated current on startup.

Under UL 1077 and CSA C22.2 No. 235, the interrupting rating is 5 kA, which covers most North American supplementary-protection applications.

Mount in any position; the quick-assembly system clips on without tools. Vibration-rated per IEC 60068-2-6: ±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz — fine for machinery-mount applications.

Environmental range and materials

Rated for -40 °C to 75 °C ambient, so it's usable in unconditioned enclosures or outdoor-adjacent panels. Sealable terminals allow tamper-proofing after commissioning.

Frequently asked questions

What is the 5SY7432-8CC rated current and breaking capacity?

Rated current is 32 A, with a breaking capacity of 20 kA per IEC 60947-2 at 400 V AC, and 5 kA per UL 1077 / CSA C22.2 No. 235.

What tripping characteristic does the 5SY7432-8CC have?

It has a D tripping characteristic, designed for loads with high inrush currents such as motors and transformers.

Where can I buy the 5SY7432-8CC and get a price?

This part is sourced and quoted to order through independent distribution. Submit an RFQ for current availability and pricing.

Will the 5SY7432-8CC drop into a panel specified for the 5SY7140-8CC?

Both are 4-pole SENTRON MCBs on the same DIN-rail footprint (4 MW, 72 mm wide). The 5SY7140-8CC is a 40 A B-curve; the 5SY7432-8CC is a 32 A D-curve. They share the same physical dimensions and mounting, so no rewiring is needed for the panel — but the different rating and curve mean the circuit protection changes. Verify the load's inrush and continuous current before swapping.

MPN
5SY7432-8CC