RS Better World

Siemens SENTRON 5SY4 Miniature Circuit Breaker, 3-Pole, 50A, Type C, 400V ac AC, 60 V dc DC, 10 kA Breaking Capacity

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€ 272,70

(excl. BTW)

€ 329,97

(incl. BTW)

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  • Plus verzending 11 stuk(s) vanaf 06 november 2026
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RS-stocknr.:
124-3180
Artikelnummer Distrelec:
301-37-639
Fabrikantnummer:
5SY4350-7
Fabrikant:
Siemens
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Merk

Siemens

Product Type

Miniature Circuit Breaker

Number of Poles

3

Current Rating

50A

Tripping Characteristics

Type C

Rated AC Voltage

400V ac

Rated DC Voltage

60V dc

Breaking Capacity

10kA

Mount Type

DIN Rail

Range

SENTRON

Series

5SY4

Terminal Type

Screw

IP Rating

IP20

Standards/Approvals

IEC/EN 60947-2/UL1077, IEC/EN 60898-1

Width

76mm

Height

90mm

Depth

90mm

Better World Claim

Extended Product Life

Better World Product

Yes

Reset Actuator Type

Toggle Switch

Land van herkomst:
DE

Siemens 5SY4 Series Miniature Circuit Breaker, 50A Current, 400V ac Rated Voltage - 5SY4350-7


This miniature circuit breaker provides overcurrent protection for industrial and infrastructure installations. Designed for three-pole switching with a Type C tripping characteristic, it operates on AC systems up to 400V and on DC supplies up to 60V. The device is suitable for DIN-rail mounting and includes a toggle reset actuator to permit manual reclosure after a trip.

Features and Benefits:


• 50A rated current ensures sustained operational load handling
• 10kA breaking capacity limits fault energy in AC systems
• Type C tripping characteristic protects against moderate inrush currents
• Combined terminals enable flexible conductor connection options
• IP20 protection offers touch-safe operation in enclosed panels

Applications


• Suitable for industrial switchboards requiring three-pole protection
• Ideal for infrastructure distribution circuits with moderate fault levels
• Used with AC supplies at 50/60Hz for general motor protection
• Can be used in DC up to 60V for control circuits
• Suitable for DIN-rail panel assemblies in confined enclosures

What conductor sizes can be connected to the terminals?


Solid, stranded and finely stranded conductors from 0.75mm² up to 35mm² can be used, with finely stranded up to 25mm² when using end ferrules.

How does temperature affect continuous current capability?


The operational current decreases with ambient temperature

examples include 48A at 40°C and 43.8A at 60°C for AC operation.

What mechanical endurance can be expected from the device?


The breaker is specified for a typical mechanical service life of 10,000 operating cycles.

Which standards govern its design and testing?


It conforms to IEC/EN 60947-2 and IEC/EN 60898-1 and carries UL1077 recognition for applicable tests.

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