5SY4125-6 The Siemens 5SY4125-6 is a 1-pole miniature circuit breaker designed for AC applications. It features a 25A current rating and a B tripping characteristic.
Mfr Part #:

5SY4125-6

Mfr Name: Siemens
Siemens
The Siemens 5SY4125-6 is a 1-pole miniature circuit breaker designed for AC applications. It features a 25A current rating and a B tripping characteristic.
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5SY4125-6 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Actuator Type
Approval Agency
Current Rating (Amps)
Depth
Design
Halogen Free
Height
Illumination
Mounting Type
Number of Poles
SVHC Present
Voltage Rating
Width

5SY4125-6 Description

Short technical summary and product information.

The Siemens 5SY4125-6 is a 1-pole miniature circuit breaker from the SENTRON series, designed for reliable circuit protection in industrial and mechanical engineering applications.

 

This breaker operates with a rated current of 25A and a supply voltage of 400V AC, featuring a B tripping characteristic. It offers a switching capacity of 10kA according to EN 60898 and 15kA according to IEC 60947-2. The device has an insulation voltage rating of 440V AC and an overvoltage category of III.

 

Constructed for durability, the 5SY4125-6 has a mechanical service life of typically 10,000 switching cycles. It is designed with touch protection and features combined terminals at both the top and bottom for convenient connection. The breaker supports conductor cross-sections from 0.75 to 35 mm² and has a compact mechanical design with dimensions of 90mm height, 18mm width, and 76mm depth, suitable for DIN rail mounting.

 

Environmental considerations include halogen-free and silicon-free materials, contributing to safer operation. The protection class is IP20 with connected conductors.

5SY4125-6 Quick Information

Product Type: Miniature circuit breaker
Series: 5SY4
Canonical Name: Siemens 5SY4 Miniature circuit breaker
Subcategory: Miniature Circuit Breaker

5SY4125-6 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

5SY4125-6 Features

  • 1-pole miniature circuit breaker
  • 25A current rating
  • 400V AC supply voltage
  • B tripping characteristic
  • 10kA switching capacity

5SY4125-6 Applications

  • Industrial circuit protection
  • Mechanical engineering applications
  • AC power distribution
  • Control panel installations

5SY4125-6 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the Siemens 5SY4125-6?

The rated current for the Siemens 5SY4125-6 is 25A at AC.

What is the supply voltage for the 5SY4125-6 circuit breaker?

The supply voltage for the 5SY4125-6 is 400V AC.

What is the tripping characteristic of the 5SY4125-6?

The tripping characteristic class for the 5SY4125-6 is B.

What is the switching capacity of the 5SY4125-6?

The switching capacity current according to EN 60898 is 10 kA.

What is the number of poles for the 5SY4125-6?

The 5SY4125-6 has 1 pole.

What is the protection class of this Siemens circuit breaker?

The protection class is IP20 with connected conductors.

What is the mechanical service life of the 5SY4125-6?

The typical mechanical service life is 10,000 switching cycles.

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