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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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

Combined Terminal

IP Rating

IP20

Width

54mm

Height

90mm

Depth

76mm

Standards/Approvals

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

Better World Product

Yes

Better World Claim

Extended Product Life

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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