5SJ4205-8HG42 The Siemens 5SJ4205-8HG42 is a 2-pole miniature circuit breaker with a D-trip characteristic and a 0.5A current rating. It offers a 10kA switching capacity.
Mfr Part #:

5SJ4205-8HG42

Mfr Name: Siemens
Siemens
The Siemens 5SJ4205-8HG42 is a 2-pole miniature circuit breaker with a D-trip characteristic and a 0.5A current rating. It offers a 10kA switching capacity.
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$ Price Range: $0.99

5SJ4205-8HG42 Specifications Quick View

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

5SJ4205-8HG42 Description

Short technical summary and product information.

This Siemens 5SJ4205-8HG42 is a 2-pole miniature circuit breaker designed for reliable circuit protection. It features a D-trip characteristic and a rated operational current of 0.5A at 30°C, with a maximum switching capacity of 10kA according to EN 60898.

 

The breaker operates with AC/DC voltage and has a rated insulation voltage of 440V AC. It is suitable for a supply voltage of 400V AC at 50Hz and has specific operating voltage limits for UL and CSA standards, including 277V AC and up to 125V DC in a 2-channel configuration.

 

Designed for industrial and mechanical engineering applications, this circuit breaker mounts on a standard DIN rail. It has a compact width of 36mm and a depth of 70mm, fitting into 2 modular width units. The terminals are suitable for finely stranded conductors with core end processing, ranging from 0.75mm² to 25mm², with a maximum tightening torque of 3.5 N·m.

 

Additional features include halogen-free construction, sealability, and touch protection. The protection class is IP20 with connected conductors and IP40 in the handle range.

5SJ4205-8HG42 Quick Information

Product Type: Miniature Circuit Breaker
Canonical Name: Siemens 5SJ4 Miniature Circuit Breaker, 2-Pole, 0.5A, 10kA

5SJ4205-8HG42 Compliance

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

5SJ4205-8HG42 Estimated Pricing

Qty Low High
1+ $0.99 $0.99

Estimated market price range - modelled values for guidance only, not live distributor offers.

5SJ4205-8HG42 Features

  • 2-pole miniature circuit breaker.
  • 0.5A current rating at 30°C.
  • 10kA switching capacity.
  • DIN rail mounting type.
  • Halogen-free and sealable design.

5SJ4205-8HG42 Applications

  • Industrial control panels.
  • Machine building applications.
  • Electrical distribution systems.
  • Protection of circuits.

5SJ4205-8HG42 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the current rating of the Siemens 5SJ4205-8HG42 circuit breaker?

The operational current rating is 0.5 A at 30°C, 40°C, and AC.

What is the number of poles for the 5SJ4205-8HG42?

This circuit breaker has 2 poles.

What is the switching capacity of the 5SJ4205-8HG42?

The switching capacity is 10 kA according to EN 60898 and 15 kA according to IEC 60947-2.

What is the voltage rating for this Siemens circuit breaker?

The rated insulation voltage is 440 V AC, and the rated supply voltage is 400 V AC.

How is the 5SJ4205-8HG42 circuit breaker mounted?

It is designed for DIN rail mounting.

Is the Siemens 5SJ4205-8HG42 halogen-free?

Yes, this product feature is listed as halogen-free.

5SJ4205-8HG42 Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.
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The Siemens 5SJ4205-7HG42 is a 2-pole miniature circuit breaker with a C-curve tripping characteristic and a rated current of 0.5A. It is designed for DIN rail mounting.
View Part
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