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Siemens 5SY4432-5 — 4-Pole MCB (DIN Rail)

Siemens 5SY4432-5 SENTRON 4-Pole MCB, 32 A, Type A, 10/20 kA

MPN5SY4432-5
Active

Siemens SENTRON 5SY4432-5, 4-pole miniature circuit breaker, 32 A rated current, Type A tripping characteristic, 400 V AC, 10 kA / 20 kA breaking capacity, 4 modular width units.

$338.66Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

5SY4432-5 — Identification
ParameterValue
Brand nameSENTRON
Application suitabilityMechanical engineering / industry
5SY4432-5 — 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
Voltage typeAC
5SY4432-5 — Protection
ParameterValue
Tripping characteristic (trip curve)A
Rated breaking capacity (Icn), per EN 6089810 kA
Rated breaking capacity, per IEC 60947-220 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
5SY4432-5 — Mechanical
ParameterValue
Width in modular units4
Width72 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Fastening / mounting methodQuick assembly system
Mounting positionany
Combined terminal, topYes
Combined terminal, bottomYes
Tightening torque, max.75 °C
Tightening torque, min.-40 °C
SealableYes
5SY4432-5 — 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
5SY4432-5 — Performance
ParameterValue
Mechanical service life (switching cycles, typ.)10 000

Product details

Panel fit and DIN-rail envelope

Installation depth is 70 mm.

At DC, the interrupting rating is 15 kA. The Type A tripping characteristic is specified for semiconductor protection or long cable runs.

Environmental and compliance envelope

Suitable for mechanical engineering and industrial environments per the manufacturer's designation.

Frequently asked questions

What is the breaking capacity of Siemens 5SY4432-5?

Determines if the breaker can handle fault currents in the installation.

What is the depth of 5SY4432-5 and does it fit standard DIN rail enclosures?

Ensures mechanical compatibility with existing panels and enclosures.

Is 5SY4432-5 a Type A or Type C breaker?

Type A trips at lower overcurrent, critical for sensitive loads or specific applications.

Where can I buy 5SY4432-5 with stock?

A sourcing buyer needs to quickly check availability and lead time for procurement.

What is the equivalent replacement for 5SY4432-5 from ABB or Schneider?

Helps find alternatives when Siemens is out of stock or for cost comparison.

Is 5SY4432-5 suitable for 400V AC systems?

Confirms the voltage rating matches the installation voltage to avoid safety issues.

MPN
5SY4432-5