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
- RS Stock No.:
- 124-3180
- Distrelec Article No.:
- 301-37-639
- Mfr. Part No.:
- 5SY4350-7
- Manufacturer:
- Siemens
Subtotal (1 unit)*
MYR645.16
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In Stock
- Plus 11 unit(s) shipping from 09 November 2026
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Units | Per Unit |
|---|---|
| 1 + | MYR645.16 |
*price indicative
Our Better World range features products that make it easy for you to make a greener product choice you can trust.
Learn more about RS Better World products
- RS Stock No.:
- 124-3180
- Distrelec Article No.:
- 301-37-639
- Mfr. Part No.:
- 5SY4350-7
- Manufacturer:
- Siemens
Specifications
Technical data sheets
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Siemens | |
| Number of Poles | 3 | |
| Product Type | Miniature Circuit Breaker | |
| Current Rating | 50A | |
| Tripping Characteristics | Type C | |
| Rated AC Voltage | 400V ac | |
| Rated DC Voltage | 60V dc | |
| Mount Type | DIN Rail | |
| Breaking Capacity | 10kA | |
| Range | SENTRON | |
| Series | 5SY4 | |
| Terminal Type | Combined Terminal | |
| IP Rating | IP20 | |
| Standards/Approvals | IEC/EN 60947-2/UL1077, IEC/EN 60898-1 | |
| Depth | 76mm | |
| Height | 90mm | |
| Width | 54mm | |
| Better World Claim | Extended Product Life | |
| Better World Product | Yes | |
| Reset Actuator Type | Toggle Switch | |
| Select all | ||
|---|---|---|
Brand Siemens | ||
Number of Poles 3 | ||
Product Type Miniature Circuit Breaker | ||
Current Rating 50A | ||
Tripping Characteristics Type C | ||
Rated AC Voltage 400V ac | ||
Rated DC Voltage 60V dc | ||
Mount Type DIN Rail | ||
Breaking Capacity 10kA | ||
Range SENTRON | ||
Series 5SY4 | ||
Terminal Type Combined Terminal | ||
IP Rating IP20 | ||
Standards/Approvals IEC/EN 60947-2/UL1077, IEC/EN 60898-1 | ||
Depth 76mm | ||
Height 90mm | ||
Width 54mm | ||
Better World Claim Extended Product Life | ||
Better World Product Yes | ||
Reset Actuator Type Toggle Switch | ||
- COO (Country of Origin):
- 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
• 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
• 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.
Related links
- Siemens SENTRON 5SY4 Miniature Circuit Breaker 50A 400V ac AC 10 kA Breaking Capacity
- Siemens SENTRON 5SY4 Miniature Circuit Breaker 50A 400V ac AC 10 kA Breaking Capacity
- Siemens SENTRON 5SY4 Miniature Circuit Breaker 50A 400V ac AC 15 kA Breaking Capacity
- Siemens SENTRON 5SY4 Miniature Circuit Breaker 50A 400V ac AC 10 kA Breaking Capacity
- Siemens SENTRON 5SY4 Miniature Circuit Breaker 50A 400V ac AC 5 kA Breaking Capacity
- Siemens SENTRON 5SY4 Miniature Circuit Breaker 50A 400V ac AC 10 kA Breaking Capacity
- Siemens SENTRON 5SY4 Miniature Circuit Breaker 50A 400V ac AC 10 kA Breaking Capacity
- Siemens SENTRON 5SY4 Miniature Circuit Breaker 50A 400V ac AC 15 kA Breaking Capacity