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Siemens 5SY6432-8 — 4-Pole MCB (DIN Rail)

Siemens 5SY6432-8 SENTRON MCB, 32 A, 4P, D Curve, 6 kA

MPN5SY6432-8

Siemens SENTRON 5SY6 series miniature circuit breaker, order code 5SY6432-8, 4-pole, D tripping characteristic, 32 A rated current, 6 kA / 15 kA breaking capacity, 400 V AC.

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

Specifications

5SY6432-8 — Identification
ParameterValue
Type / order code5SY6
Brand nameSENTRON
Application suitabilityMechanical engineering / industry
5SY6432-8 — Ratings
ParameterValue
Number of poles4
Pole configuration4P
Rated current (In), AC400 V
Rated voltage, AC (multi-phase)440 V
Rated voltage, AC (single-phase)440 V
Rated voltage, DC (max.)72 V
Voltage typeAC
Rated frequency50/60 Hz
5SY6432-8 — Protection
ParameterValue
Tripping characteristic (trip curve)D
Rated breaking capacity (Icn), per EN 608986 kA
Rated breaking capacity, per IEC 60947-215 kA
Breaking capacity, AC (UL 1077 / CSA C22.2 No.235)5 kA
Overvoltage categoryIII
Pollution degree3
Degree of protection (IP)IP20, with connected conductors
Neutral conductor switchingNo
Touch protectionYes
5SY6432-8 — Mechanical
ParameterValue
Width in modular units4
Width72 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Mounting positionany
Combined terminal, topYes
Combined terminal, bottomYes
Tightening torque, max.75 °C
Tightening torque, min.-40 °C
SealableYes
5SY6432-8 — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes
Influence of ambient temperature (derating)max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C
5SY6432-8 — Performance
ParameterValue
Mechanical service life (switching cycles, typ.)10 000

Product details

Siemens 5SY6432-8 — SENTRON 4-Pole MCB, D Curve, 32 A

It is designed for AC circuits up to 400 V and provides a breaking capacity of 6 kA per EN 60898 and 15 kA per IEC 60947-2. The 4-pole configuration (4P) switches all phases; neutral conductor switching is not integrated, so a separate neutral bar or isolator is required if full isolation is needed.

The 72 mm width (4 width units) occupies four 18 mm module spaces. The IP20 rating applies with connected conductors, which is standard for enclosed panel installations.

Halogen-free and silicon-free construction. Operating temperature range spans -40 °C to 75 °C, with derating for humidity: max 95% RH at 55 °C, tapering to 35% at 75 °C. Sealable design allows lockout/tagout. Touch protection is integrated on the terminals.

Frequently asked questions

What is the breaking capacity of the 5SY6432-8?

The breaking capacity is 6 kA per EN 60898 and 15 kA per IEC 60947-2 at 400 V AC. Under UL 1077 / CSA C22.2 No. 235, the rating is 5 kA.

Where can I buy the 5SY6432-8?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

MPN
5SY6432-8