5SJ4140-8HG40 The Siemens 5SJ4140-8HG40 is a 1-pole miniature circuit breaker designed for industrial applications. It offers a 40A operational current and a 10kA switching capacity.
Mfr Part #:

5SJ4140-8HG40

Mfr Name: Siemens
Siemens
The Siemens 5SJ4140-8HG40 is a 1-pole miniature circuit breaker designed for industrial applications. It offers a 40A operational current and a 10kA switching capacity.
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$ Price Range: $0.99

5SJ4140-8HG40 Specifications Quick View

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

5SJ4140-8HG40 Description

Short technical summary and product information.

This Siemens 5SJ4 miniature circuit breaker is a 1-pole device suitable for mechanical engineering and industrial applications. It operates with a rated supply voltage of 400V AC and features a D-curve tripping characteristic.

 

The breaker has a mechanical service life of 10,000 switching cycles and a short circuit breaking capacity of 10kA according to EN 60898 and 15kA according to IEC 60947-2. It supports a wide range of conductor cross-sections, from 0.75 mm² to 25 mm², with a maximum tightening torque of 3.5 N·m.

 

Designed for DIN rail mounting, this circuit breaker has a compact width of 18 mm and an installation depth of 70 mm. It offers touch protection and is sealable for added security. The device is halogen-free and silicon-free, contributing to environmental safety.

 

Key electrical specifications include an insulation voltage of 440V AC and operational currents rated up to 40A at 30°C, with derated values at higher temperatures. It is suitable for environments with immunity to interference not applicable.

5SJ4140-8HG40 Quick Information

Product Type: Miniature Circuit Breaker
Canonical Name: Siemens 5SJ4 Miniature Circuit Breaker, 1-Pole, 40A, 400V AC, D-Curve
Subcategory: Miniature Circuit Breaker

5SJ4140-8HG40 Compliance

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

5SJ4140-8HG40 Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

5SJ4140-8HG40 Features

  • 1-pole miniature circuit breaker
  • 40A current rating, D-curve
  • 400V AC supply voltage
  • 10kA switching capacity
  • DIN rail mounting

5SJ4140-8HG40 Applications

  • Industrial control panels
  • Machine building applications
  • Power distribution systems
  • Electrical safety protection

5SJ4140-8HG40 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the current rating of the Siemens 5SJ4140-8HG40?

The operational current rating is 40A at 30°C.

What is the voltage rating for this circuit breaker?

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

What is the switching capacity of the 5SJ4140-8HG40?

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

What is the tripping characteristic of this circuit breaker?

The tripping characteristic class is D.

How is the Siemens 5SJ4140-8HG40 mounted?

It is designed for mounting on a standard DIN rail.

Is this circuit breaker halogen-free?

Yes, the product feature indicates it is halogen-free.

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