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Siemens 5SY4101-8
Supplementary Protector 1P 1A 240V D-TRIP
Product Description
The Supplementary Protector is a compact 1-pole circuit breaker rated for 1 A and operates at a maximum voltage of 400 V. With dimensions of 18 mm in width and 70 mm in depth, it is suitable for various electrical installations. Adhering to UL1077 standards, it is classified under the IEC Mini Circuit Breaker category.
This device features a trip characteristic curve D, which provides specific performance under fault conditions, ensuring reliable protection. The rated short-circuit breaking capacity is 10 kA at 230 V and 400 V, exceeding typical requirements for protective components.
With an IP20 degree of protection, it is suitable for indoor applications where exposure to dust and moisture is limited. The unit operates effectively in ambient temperatures ranging from -40 °C, enhancing its versatility across various environments. It supports a connectable conductor cross section of 0.75 mm² for both solid-core and multi-wired configurations, making it adaptable for diverse wiring setups. The UL File E116386 indicates compliance with stringent safety standards.
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Offer details
- Offer from:
- Trusted supplier — Germany, member since 2024
- Availability:
- 7 pcs.Updated at: 01-10-2026In-Stock
- Warranty:
- 24 months
- Condition:
- Refurbished
Specifications
- Brand
- Siemens
- Voltage type
- AC
- Rated current
- 1 A
- Pollution degree
- 3
- Rated voltage
- 400 V
- Explosion-proof
- Over voltage category
- 3
Available Offers
(10)| Condition | Availability | Supplier | Warranty | Action | |
|---|---|---|---|---|---|
 | Condition Refurbished | Availability 7 pcs. Updated at: 01-10-2026In-Stock | Supplier GermanyTrusted supplier — member since 2024 | Warranty 24 months | |
| Condition New Surplus | Availability 17 pcs. Updated at: 01-10-2026In-Stock | Supplier GermanyTrusted supplier — member since 2024 | Warranty 24 months | |
| Condition New Surplus | Availability 5 pcs. Updated at: 01-10-2026In-Stock | Supplier GermanyTrusted supplier — member since 2024 | Warranty 24 months | |
| Condition New Factory Sealed | Availability 3 pcs. Updated at: 06-10-2026In-Stock | Supplier United KingdomTrusted supplier — member since 2024, 5–9 employees | Warranty 12 months | |
 | Condition New Surplus | Availability On requestLead time: 21 days | Supplier RomaniaTrusted supplier — member since 2023, 1–4 employees | Warranty Not specified | |
 | Condition New Factory Sealed | Availability 1 pc. Updated at: 06-10-2026In-Stock | Supplier CzechiaTrusted supplier — member since 2021, 50–99 employees | Warranty 24 months |
United Kingdom
Romania
CzechiaOffer with manufacturer lead time
Directly from the manufacturer - with a confirmed, predictable, and fully transparent delivery time.
Documents
Data Sheet
Datasheet for Siemens 5SY4101-8, including specifications and features.
CAD Models
3D CAD model and technical drawings, ready for your design software.
Product data updated: 01-10-2026
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