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Siemens 5SY4150-7
Supplementary Protector 1P 50A 277VAC C-Trip
Product Description
This Supplementary Protector is designed for use in AC applications, supporting a rated current of 50 A and a rated voltage of 277 VAC. The device features a trip characteristic of Curve C and has a compact design with a width of 18 mm and depth of 70 mm.
It is compliant with the UL1077 standard and classified as an IEC Mini Circuit Breaker. The product has a rated insulation voltage of 440 V and operates effectively in pollution degree 3 environments. Its short-circuit breaking capacity is rated at 10 kA for 230 V and 15 kA for 400 V, ensuring reliable protection against overcurrent.
Additional capabilities include the ability to connect conductors with a cross-section of 0.75 mm². The device is designed for flush-mounted installation and has an IP20 degree of protection, making it suitable for various industrial applications. The ambient temperature range for operation extends from -40 °C, ensuring functionality in extreme conditions. The UL file number for this product is E116386, found in Volume 1, Section 2.
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Offer details
- Offer from:
Trusted supplier — Germany, member since 2024 - Availability:
- 4 pcs.Updated at: 15-09-2026In-Stock
- Warranty:
- 24 months
- Condition:
- New Surplus
Specifications
- Brand
- Siemens
- Voltage type
- AC
- Rated current
- 50 A
- Pollution degree
- 3
- Rated voltage
- 400 V
- Explosion-proof
- Over voltage category
- 3
Available Offers
(3)| Condition | Availability | Supplier | Warranty | Action | |
|---|---|---|---|---|---|
 | Condition New Surplus | Availability 4 pcs. Updated at: 15-09-2026In-Stock | SupplierGermanyTrusted supplier — member since 2024 | Warranty 24 months | |
| Condition New Factory Sealed | Availability On requestLead time: 30 days | SupplierGermanyTrusted supplier — member since 2024 | Warranty Not specified | |
 | Condition New Factory Sealed | Availability On requestLead time to be confirmed | Supplier ItalyTrusted supplier — member since 2021, 10–19 employees | Warranty 12 months |
Offer with manufacturer lead time
Directly from the manufacturer - with a confirmed, predictable, and fully transparent delivery time.
Documents
Data Sheet
Datasheet for Siemens 5SY4150-7, including specifications and features.
CAD Models
3D CAD model and technical drawings, ready for your design software.
Product data updated: 15-09-2026
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