Siemens 5SY4105-7

Supplementary Protector 1P 0.5A Curve C

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Siemens 5SY4105-7 Supplementary Protector 1P 0.5A Curve C — Circuit Breakers & Fuses
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Product Description

Lifecycle Status:

This Supplementary Protector is designed for use in AC applications, compliant with UL1077 standards. It features a single pole configuration and is rated for a current of 0.5A at a voltage of 400V. The device adheres to a trip characteristic of Curve C, which is suitable for protecting against overloads and short circuits.

With a compact width of 18mm and a depth of 70mm, this circuit breaker is ideal for installation in space-constrained environments. It has a rated short-circuit breaking capacity of 10 kA at 230V and 400V, ensuring reliable performance under fault conditions. The device is constructed to meet pollution degree 3 and over voltage category 3 requirements, providing enhanced safety for industrial applications.

Notably, the protector offers a degree of protection classified as IP20, indicating suitability for indoor use. The operational temperature range extends from -40 °C, making it adaptable to various environmental conditions. This unit allows for connection of solid-core or multi-wired conductors with a cross-section of 0.75 mm², ensuring flexibility in wiring configurations.

For further compliance, it carries UL File E116386 in Volume 1, Section 2, and is designed for easy integration into existing electrical systems.

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Offer details

Best offer from:
Trusted supplier — Germany, member since 2024
Availability:
20 pcs.
In-Stock
Updated at: 11-09-2026
Warranty:
24 months
Condition:
Refurbished
Refurbished - A refurbished item inspected, cleaned, and repaired to full working order by either the manufacturer or a certified technician. The item is in excellent condition and fully operational.
The Seller is responsible for shipping the product and invoicing

Specifications

Brand
Siemens
Voltage type
AC
Pollution degree
3
Rated current
0.5 A
Rated voltage
400 V
Explosion-proof
Over voltage category
3

Available Offers

(15)
5SY4105-7 Siemens, Circuit Breakers & Fuses

Siemens

Available:
19 pcs.
In-Stock
Updated at: 11-09-2026
Offer from:
Trusted supplier — Germany, member since 2024
Warranty:
24 months
5SY4105-7 Siemens, Circuit Breakers & Fuses

Siemens

Available:
8 pcs.
In-Stock
Updated at: 11-09-2026
Offer from:
Trusted supplier — Germany, member since 2024
Warranty:
24 months
5SY4105-7 Siemens, Circuit Breakers & Fuses

Siemens

Available:
1 pc.
On Request
Updated at: 22-08-2026
Offer from:
Trusted supplier — Romania, member since 2023, 1–4 employees

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Documents

Data Sheet

Datasheet for Siemens 5SY4105-7, including specifications and features.

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CAD Models

3D CAD model and technical drawings, ready for your design software.

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