CA1-B2-12-640-A21-MJ The Littelfuse Inc. CA1-B2-12-640-A21-MJ is a single-pole circuit breaker designed for panel mounting. It features a magnetic hydraulic delay mechanism and a 40A current rating.
Mfr Part #:

CA1-B2-12-640-A21-MJ

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. CA1-B2-12-640-A21-MJ is a single-pole circuit breaker designed for panel mounting. It features a magnetic hydraulic delay mechanism and a 40A current rating.
Stock on Request
$ Price Range: $0.99

CA1-B2-12-640-A21-MJ Specifications Quick View

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

CA1-B2-12-640-A21-MJ Description

Short technical summary and product information.

This Littelfuse Inc. circuit breaker, part number CA1-B2-12-640-A21-MJ, is a single-pole device with a 40A current rating and a 480V voltage rating. It utilizes a magnetic (hydraulic delay) breaker type for reliable operation.

 

The breaker is designed for panel mounting and features a lever actuator. It is approved by multiple agencies including CCC, CSA, TUV, and UL489, indicating broad compliance for various applications. The component is RoHS3 compliant and has an MSL 1 rating.

 

This circuit breaker is suitable for applications requiring protection against overcurrents and short circuits, with a specific delay characteristic provided by its hydraulic mechanism. Its robust construction and agency approvals make it a dependable choice for industrial and commercial electrical systems.

CA1-B2-12-640-A21-MJ Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse Inc. CA1-B2-12-640-A21-MJ Circuit Breaker
Subcategory: Circuit Breaker

CA1-B2-12-640-A21-MJ Compliance

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

CA1-B2-12-640-A21-MJ Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

CA1-B2-12-640-A21-MJ Features

  • 40A current rating for protection.
  • 480V voltage rating for power systems.
  • Magnetic hydraulic delay mechanism.
  • Panel mount with lever actuator.
  • Approved by CCC, CSA, TUV, UL489.

CA1-B2-12-640-A21-MJ Applications

  • Industrial control panel protection.
  • Power distribution systems.
  • Machinery safety circuits.
  • Commercial building electrical systems.

CA1-B2-12-640-A21-MJ FAQs

5 frequently asked questions generated from this part’s specifications.
What is the current rating of the CA1-B2-12-640-A21-MJ circuit breaker?

The current rating is 40A.

What is the voltage rating for this circuit breaker?

The voltage rating is 480V.

What type of breaker mechanism does the CA1-B2-12-640-A21-MJ use?

It uses a magnetic (hydraulic delay) breaker type.

How is this circuit breaker mounted?

It is designed for panel mounting.

What are the approval agencies for this circuit breaker?

Approval agencies include CCC, CSA, TUV, and UL489.

CA1-B2-12-640-A21-MJ Alternate Parts

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Littelfuse Inc.
The Littelfuse Inc. CA1-B0-14-640-321-MJ is a 1-pole magnetic hydraulic delay circuit breaker rated for 40A and 480V. It features a lever actuator and panel mount design.
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CA1-B2-12-640-321-MJ
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CA1-B0-16-640-A21-MJ
CA1-B0-16-640-A21-MJ
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The Littelfuse Inc. CA1-B0-16-640-A21-MJ is a single-pole circuit breaker designed for panel mounting. It offers a 40A current rating and a 480V voltage rating.
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CT1-B2-14-640-121-MJ
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The Littelfuse Inc. CT1-B2-14-640-121-MJ is a panel mount circuit breaker. It features a 40A current rating and a 480V voltage rating.
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