CB2-B2-12-640-121-D The Littelfuse Inc. CB2-B2-12-640-121-D is a 2-pole circuit breaker designed for panel mounting. It features a magnetic hydraulic delay mechanism and a lever actuator.
Mfr Part #:

CB2-B2-12-640-121-D

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. CB2-B2-12-640-121-D is a 2-pole circuit breaker designed for panel mounting. It features a magnetic hydraulic delay mechanism and a lever actuator.
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$ Price Range: $0.99

CB2-B2-12-640-121-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

CB2-B2-12-640-121-D Description

Short technical summary and product information.

This Littelfuse Inc. circuit breaker, part number CB2-B2-12-640-121-D, is a 2-pole device with a current rating of 40A and a voltage rating of 480V. It utilizes a magnetic hydraulic delay for its tripping mechanism and is designed for panel mounting with a lever actuator.

 

Key electrical specifications include a 40A current rating and a 480V voltage rating. The breaker type is magnetic (hydraulic delay), ensuring reliable protection. It is a 2-pole unit, suitable for applications requiring isolation of two circuits.

 

The mounting type is panel mount, allowing for easy integration into control panels and enclosures. The actuator type is a lever, providing a clear visual indication of the breaker's state. Illumination is not included.

 

Environmental compliance includes RoHS3 compliance, MSL 1, and REACH unaffected status. These certifications indicate adherence to certain environmental and safety standards.

CB2-B2-12-640-121-D Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse Inc. CB2-B2-12-640-121-D Circuit Breaker
Subcategory: Circuit Breaker

CB2-B2-12-640-121-D Compliance

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

CB2-B2-12-640-121-D Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

CB2-B2-12-640-121-D Features

  • 40A current rating for robust protection.
  • 480V voltage rating for high-power applications.
  • 2-pole design for circuit isolation.
  • Panel mount with lever actuator.
  • Magnetic hydraulic delay tripping mechanism.

CB2-B2-12-640-121-D Applications

  • Suitable for industrial control panels.
  • Used in power distribution systems.
  • Ideal for equipment protection.
  • Applicable in high-voltage circuits.

CB2-B2-12-640-121-D FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the CB2-B2-12-640-121-D 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 is the CB2-B2-12-640-121-D?

It is a magnetic (hydraulic delay) type breaker.

How many poles does this circuit breaker have?

This circuit breaker has 2 poles.

What is the mounting type for this circuit breaker?

The mounting type is Panel Mount.

Is the CB2-B2-12-640-121-D 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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The Littelfuse Inc. CA2-B2-14-640-121-D is a 2-pole circuit breaker rated for 40A and 480V. It features a magnetic hydraulic delay and a lever actuator.
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