Siemens SENTRON 5SY8 Miniature Circuit Breaker, 4-Pole, 40 A, Type D, 400 V ac AC, 72 V DC, 25 kA Breaking Capacity
- RS Stock No.:
- 610-359
- Mfr. Part No.:
- 5SY8440-8BB08
- Manufacturer:
- Siemens
Subtotal (1 unit)*
HK$2,116.60
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- Shipping from 24 March 2026
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Units | Per unit |
|---|---|
| 1 + | HK$2,116.60 |
*price indicative
- RS Stock No.:
- 610-359
- Mfr. Part No.:
- 5SY8440-8BB08
- Manufacturer:
- Siemens
Specifications
Product overview and 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 | 4 | |
| Product Type | Miniature Circuit Breaker | |
| Current Rating | 40 A | |
| Tripping Characteristics | Type D | |
| Rated AC Voltage | 400 V ac | |
| Rated DC Voltage | 72 V | |
| Breaking Capacity | 25kA | |
| Mount Type | DIN Rail | |
| Range | SENTRON | |
| Series | 5SY8 | |
| Terminal Type | Screw | |
| IP Rating | IP20 | |
| Width | 72 mm | |
| Depth | 76mm | |
| Standards/Approvals | UL 1077, IEC 60947-2, EN 60204-1, CSA C22.2 No.235 | |
| Height | 90mm | |
| Tripping Mechanism | Magnetic | |
| Select all | ||
|---|---|---|
Brand Siemens | ||
Number of Poles 4 | ||
Product Type Miniature Circuit Breaker | ||
Current Rating 40 A | ||
Tripping Characteristics Type D | ||
Rated AC Voltage 400 V ac | ||
Rated DC Voltage 72 V | ||
Breaking Capacity 25kA | ||
Mount Type DIN Rail | ||
Range SENTRON | ||
Series 5SY8 | ||
Terminal Type Screw | ||
IP Rating IP20 | ||
Width 72 mm | ||
Depth 76mm | ||
Standards/Approvals UL 1077, IEC 60947-2, EN 60204-1, CSA C22.2 No.235 | ||
Height 90mm | ||
Tripping Mechanism Magnetic | ||
- COO (Country of Origin):
- DE
The Siemens Miniature Circuit Breaker is an essential component designed for reliable protection in electrical systems. Suitable for infrastructure and industrial applications, this device stands out with its only magnetic tripping operation, ensuring swift disconnection in case of fault conditions. With a compact design that integrates effortlessly into electrical panels, it features a robust build quality that guarantees a long mechanical service life. Furthermore, it operates efficiently at a voltage of up to 400 V and is engineered to handle high short-circuit currents of up to 25 kA. Its advanced technical specifications combine safety, functionality, and ease of installation to meet diverse electrical needs. Designed to resist environmental challenges, it ensures continued performance in demanding conditions, making it a trustworthy choice for professionals in the field.
Compact size facilitates easy integration into tight spaces
Designed for a mechanical service life of up to 10000 cycles
Rated for use in overvoltage category III applications
Environmentally friendly construction featuring halogen-free and silicon-free materials
Compatible with both solid and stranded conductors enhancing installation versatility
Offers touch protection for enhanced user safety
Tested for vibration resistance ensuring durability in challenging environments
Allows installation of supplementary devices enhancing functionality
Related links
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