CM3-B4-44-640-20A-I The Littelfuse Inc. CM3-B4-44-640-20A-I is a 3-pole circuit breaker designed for panel mounting. It features a magnetic hydraulic delay with a 40A current rating and 480V voltage rating.
Mfr Part #:

CM3-B4-44-640-20A-I

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. CM3-B4-44-640-20A-I is a 3-pole circuit breaker designed for panel mounting. It features a magnetic hydraulic delay with a 40A current rating and 480V voltage rating.
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$ Price Range: $0.99

CM3-B4-44-640-20A-I 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

CM3-B4-44-640-20A-I Description

Short technical summary and product information.

This Littelfuse Inc. CM3-B4-44-640-20A-I is a circuit breaker with a current rating of 40A and a voltage rating of 480V. It is designed for panel mounting and features a magnetic hydraulic delay mechanism for reliable operation.

 

The breaker is a 3-pole unit with a toggle actuator and no illumination. It is compliant with RoHS3 standards and has a Moisture Sensitivity Level (MSL) of 1.

 

Key specifications include a 40A current rating and 480V voltage rating, making it suitable for various power distribution applications. The panel mount design ensures easy integration into control panels and equipment.

 

This component is approved by CCC, CSA, and UL agencies, indicating adherence to safety and performance standards.

CM3-B4-44-640-20A-I Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse Inc. CM3-B4-44-640-20A-I Circuit Breaker
Subcategory: Circuit Breakers

CM3-B4-44-640-20A-I Compliance

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

CM3-B4-44-640-20A-I Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

CM3-B4-44-640-20A-I Features

  • 40A current rating for power applications.
  • 480V voltage rating for industrial use.
  • Panel mount design for easy integration.
  • Magnetic hydraulic delay for protection.
  • 3-pole configuration for multi-circuit control.

CM3-B4-44-640-20A-I Applications

  • Suitable for industrial power distribution.
  • Used in control panel assemblies.
  • Ideal for equipment protection circuits.
  • Applicable in systems requiring 480V.
  • Designed for reliable circuit interruption.

CM3-B4-44-640-20A-I FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the CM3-B4-44-640-20A-I circuit breaker?

The current rating is 40A.

What is the voltage rating for the CM3-B4-44-640-20A-I?

The voltage rating is 480V.

How is the CM3-B4-44-640-20A-I mounted?

It is designed for panel mounting.

What type of breaker is the CM3-B4-44-640-20A-I?

It is a Magnetic (Hydraulic Delay) breaker.

How many poles does the CM3-B4-44-640-20A-I have?

It has 3 poles.

Is the CM3-B4-44-640-20A-I RoHS compliant?

Yes, it is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for this part?

The MSL is 1 Unlimited.

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