CA4-B2-24-640-121-D The Littelfuse Inc. CA4-B2-24-640-121-D is a 4-pole circuit breaker rated for 40A and 250V. It features a magnetic (hydraulic delay) mechanism and a lever actuator.
Mfr Part #:

CA4-B2-24-640-121-D

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. CA4-B2-24-640-121-D is a 4-pole circuit breaker rated for 40A and 250V. It features a magnetic (hydraulic delay) mechanism and a lever actuator.
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$ Price Range: $0.99

CA4-B2-24-640-121-D 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
Voltage Rating

CA4-B2-24-640-121-D Description

Short technical summary and product information.

This Littelfuse Inc. CA4-B2-24-640-121-D is a 4-pole circuit breaker designed for circuit protection applications. It offers a current rating of 40A and a voltage rating of 250V.

 

The breaker type is magnetic with a hydraulic delay, providing reliable tripping characteristics. It features a lever actuator for manual operation and is designed for panel mounting.

 

Key specifications include a 4-pole configuration and approval by agencies such as CCC, CSA, UL, and VDE. The RoHS status is RoHS3 Compliant, and the Moisture Sensitivity Level (MSL) is 1 Unlimited.

CA4-B2-24-640-121-D Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse Inc. CA4-B2-24-640-121-D Circuit Breaker
Subcategory: Circuit Breaker

CA4-B2-24-640-121-D Compliance

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

CA4-B2-24-640-121-D Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

CA4-B2-24-640-121-D Features

  • 40A current rating for robust protection.
  • 250V voltage rating suitable for many applications.
  • Magnetic (hydraulic delay) breaker type.
  • 4-pole configuration for multi-circuit control.
  • Panel mount design for easy installation.

CA4-B2-24-640-121-D Applications

  • Ideal for industrial control panels.
  • Suitable for power distribution systems.
  • Used in equipment requiring protection.
  • Applicable in systems needing 4 poles.

CA4-B2-24-640-121-D FAQs

6 frequently asked questions generated from this part’s specifications.
What is the current rating of the CA4-B2-24-640-121-D circuit breaker?

The current rating is 40A.

What is the voltage rating for this circuit breaker?

The voltage rating is 250V.

What type of breaker mechanism does the CA4-B2-24-640-121-D use?

It uses a Magnetic (Hydraulic Delay) mechanism.

How many poles does this circuit breaker have?

It has 4 poles.

What mounting type is required for this circuit breaker?

It is designed for Panel Mount.

Which approval agencies have certified this circuit breaker?

Approval agencies include CCC, CSA, UL, and VDE.

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The Littelfuse Inc. CA4-B0-22-640-211-D is a 4-pole circuit breaker rated for 40A and 250V. It features a magnetic hydraulic delay and a lever actuator.
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