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Siemens 5SY4116-6
Supplementary Protector 1P 16A 240V Curve B
Product Description
The Supplementary Protector is designed for protection in electrical circuits, operating with a rated current of 16 Amps and a voltage capacity of 400 V. This compact device is characterized by its B trip curve, making it suitable for applications requiring standard protection against overloads and short-circuits.
With a build depth of 70 mm and a width of 18 mm, this 1-pole circuit breaker is compliant with UL1077 standards and is rated for a short-circuit breaking capacity of 10 kA at both 230 V and 400 V. The device is rated for a pollution degree of 3 and an over-voltage category of 3, ensuring reliable operation under various environmental conditions.
Installation is straightforward, as the unit is designed for panel mounting and supports a conductor cross-section of 0.75 mm² for both solid-core and multi-wired connections. It also features an IP20 protection class, making it suitable for indoor use.
This model, designated as 5SY4, is further supported by additional equipment options, thereby enhancing its versatility in industrial applications.
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Offer details
- Offer from:
- Trusted supplier — Poland, member since 2021, 5–9 employees
- Availability:
- 1 pc.Updated at: 13-10-2026In-Stock
- Warranty:
- 12 months
- Condition:
- Used
Specifications
- Brand
- Siemens
- Voltage type
- AC
- Rated current
- 16 A
- Pollution degree
- 3
- Rated voltage
- 400 V
- Explosion-proof
- Over voltage category
- 3
Available Offers
(9)| Condition | Availability | Supplier | Warranty | Action | |
|---|---|---|---|---|---|
 | Condition Used | Availability 1 pc. Updated at: 13-10-2026In-Stock | Supplier PolandTrusted supplier — member since 2021, 5–9 employees | Warranty 12 months | |
| Condition Refurbished | Availability 7 pcs. Updated at: 01-10-2026In-Stock | Supplier GermanyTrusted supplier — member since 2024 | Warranty 24 months | |
| Condition New Factory Sealed | Availability 20 pcs. Updated at: 31-10-2025In-Stock | Supplier United KingdomTrusted supplier — member since 2021 | Warranty Not specified | |
 | Condition New Surplus | Availability On requestLead time: 21 days | Supplier RomaniaTrusted supplier — member since 2023, 1–4 employees | Warranty Not specified | |
 | Condition Used | Availability 4 pcs. Updated at: 12-10-2026In-Stock | Supplier CzechiaTrusted supplier — member since 2021, 50–99 employees | Warranty 24 months | |
| Condition New Factory Sealed | Availability 11 pcs. Updated at: 11-10-2026In-Stock | Supplier CroatiaTrusted supplier — member since 2023 | Warranty 12 months |
Germany
United Kingdom
Romania
Czechia
CroatiaOffer with manufacturer lead time
Directly from the manufacturer - with a confirmed, predictable, and fully transparent delivery time.
Documents
Data Sheet
Datasheet for Siemens 5SY4116-6, including specifications and features.
CAD Models
3D CAD model and technical drawings, ready for your design software.
Product data updated: 13-10-2026
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