BB4-B0-24-620-421-D The Littelfuse Inc. BB4-B0-24-620-421-D is a 4-pole circuit breaker designed for panel mounting. It features a 20A current rating and a 250V AC voltage rating.
Mfr Part #:

BB4-B0-24-620-421-D

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. BB4-B0-24-620-421-D is a 4-pole circuit breaker designed for panel mounting. It features a 20A current rating and a 250V AC voltage rating.
Stock on Request
$ Price Range: $0.99

BB4-B0-24-620-421-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

BB4-B0-24-620-421-D Description

Short technical summary and product information.

This circuit breaker from Littelfuse Inc., part number BB4-B0-24-620-421-D, is a magnetic (hydraulic delay) type breaker designed for reliable circuit protection.

 

It offers a current rating of 20A and a voltage rating of 250V AC, with a DC voltage rating of 80V. The breaker is configured with 4 poles and features a lever actuator for easy operation. Its panel mount design makes it suitable for integration into various electrical enclosures and systems.

 

Key specifications include a 20A current rating and a 250V AC voltage rating, with a 4-pole configuration. The breaker type is magnetic with a hydraulic delay, providing specific protection characteristics. It is designed for panel mounting and has a lever actuator.

 

The BB4-B0-24-620-421-D is RoHS3 compliant and has an MSL of 1, indicating unlimited moisture sensitivity. It is also REACH unaffected.

BB4-B0-24-620-421-D Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse Inc. BB4-B0-24-620-421-D Circuit Breaker
Subcategory: Circuit Breaker

BB4-B0-24-620-421-D Compliance

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

BB4-B0-24-620-421-D Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

BB4-B0-24-620-421-D Features

  • 20A current rating for circuit protection.
  • 250V AC voltage rating.
  • Four-pole magnetic hydraulic delay breaker.
  • Panel mount design with lever actuator.
  • RoHS3 compliant and MSL 1 rated.

BB4-B0-24-620-421-D Applications

  • Ideal for industrial control panels.
  • Suitable for power distribution systems.
  • Used in equipment requiring protection.
  • General purpose circuit protection needs.

BB4-B0-24-620-421-D FAQs

6 frequently asked questions generated from this part’s specifications.
What is the current rating of the BB4-B0-24-620-421-D circuit breaker?

The current rating is 20A.

What is the AC voltage rating for this circuit breaker?

The AC voltage rating is 250V.

How many poles does the BB4-B0-24-620-421-D have?

It has 4 poles.

What type of breaker mechanism does this unit use?

It is a magnetic breaker with a hydraulic delay.

How is the BB4-B0-24-620-421-D mounted?

It is designed for panel mounting.

Is this circuit breaker RoHS compliant?

Yes, it is RoHS3 Compliant.

BB4-B0-24-620-421-D Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.
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BA4-B0-24-620-111-D
BA4-B0-24-620-111-D
Littelfuse Inc.
The BA4-B0-24-620-111-D is a circuit breaker manufactured by Littelfuse Inc. with a current rating of 20A, voltage rating of 250V, and four poles.
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BB4-B0-24-620-232-D
BB4-B0-24-620-232-D
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The Littelfuse Inc. BB4-B0-24-620-232-D is a 4-pole magnetic circuit breaker designed for panel mounting. It offers a 20A current rating and a 250V voltage rating.
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BA4-B0-24-620-211-D
BA4-B0-24-620-211-D
Littelfuse Inc.
The Littelfuse Inc. BA4-B0-24-620-211-D is a 4-pole circuit breaker with a 20A current rating and 250V voltage rating. It features a magnetic (hydraulic delay) trip type and panel mount capability.
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BA4-B0-26-620-221-D
BA4-B0-26-620-221-D
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BA4-B0-26-620-221-D is a 20A, 250V, 4-pole magnetic circuit breaker with hydraulic delay, suitable for panel mount. Approved by CCC, CSA, UL, VDE.
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