Siemens SENTRON 5SY4 Miniature Circuit Breaker, 1-Pole, 4 A, Type D, 400 V ac AC, 72 V dc DC, 10 kA Breaking Capacity
- RS stock no.:
- 772-1240
- Mfr. Part No.:
- 5SY4104-8
- Manufacturer:
- Siemens
Bulk discount available
Subtotal (1 unit)*
R 571,34
(exc. VAT)
R 657,04
(inc. VAT)
FREE delivery for orders over R 1,500.00
In Stock
- 3 unit(s) ready to ship from another location
- Plus 33 unit(s) shipping from 18 March 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 - 9 | R 571.34 |
| 10 - 14 | R 557.06 |
| 15 + | R 540.35 |
*price indicative
- RS stock no.:
- 772-1240
- Mfr. Part No.:
- 5SY4104-8
- Manufacturer:
- Siemens
Specification
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 | 1 | |
| Product Type | Miniature Circuit Breaker | |
| Current Rating | 4 A | |
| Tripping Characteristics | Type D | |
| Rated AC Voltage | 400 V ac | |
| Rated DC Voltage | 72 V dc | |
| Breaking Capacity | 10kA | |
| Mount Type | DIN Rail | |
| Range | SENTRON | |
| Series | 5SY4 | |
| Terminal Type | Screw | |
| IP Rating | IP20 | |
| Height | 90mm | |
| Width | 17.5 mm | |
| Standards/Approvals | IEC/EN 60898-1, IEC/EN 60947-2/UL1077 | |
| Depth | 76mm | |
| Select all | ||
|---|---|---|
Brand Siemens | ||
Number of Poles 1 | ||
Product Type Miniature Circuit Breaker | ||
Current Rating 4 A | ||
Tripping Characteristics Type D | ||
Rated AC Voltage 400 V ac | ||
Rated DC Voltage 72 V dc | ||
Breaking Capacity 10kA | ||
Mount Type DIN Rail | ||
Range SENTRON | ||
Series 5SY4 | ||
Terminal Type Screw | ||
IP Rating IP20 | ||
Height 90mm | ||
Width 17.5 mm | ||
Standards/Approvals IEC/EN 60898-1, IEC/EN 60947-2/UL1077 | ||
Depth 76mm | ||
- COO (Country of Origin):
- DE
Siemens MCB, 4kV Rated Impulse Withstand Voltage, 150g Weight - SENTRON Series - 5SY4104-8
Don't let electrical hazards sneak up on your circuits – protect your kit with this MCB from Siemens. It steps in instantly to cut power to your network in the event of a short circuit or overcurrent, preventing equipment damage and electric shocks. The breaker has type-D tripping characteristics, which means that it's triggered at 10 to 20 times its 4A load current. This makes it useful for devices where high inrushes are expected, such as motors and power supply units. Its terminals accommodate cable sizes ranging between 14 and 4AWG, making it a versatile solution. You'll find MCBs like this one used on assembly lines and in switchgear systems.
Features & Benefits
• Performs reliably in temperatures ranging between -25°C and +55°C, making it a good fit for demanding environments
• DIN rail mounting style is simple and doesn't need tools, saving time and hassle
• Rated impulse withstand voltage of 4kV allows it to handle sudden power spikes without suffering damage
How durable is this MCB?
This unit withstands up to 20,000 mechanical operating cycles, so you can rest assured of its long-term performance.
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