A21-B0-34-620-4A1-E The Littelfuse Inc. A21-B0-34-620-4A1-E is a single-pole circuit breaker designed for panel mounting. It features a magnetic hydraulic delay mechanism.
Mfr Part #:

A21-B0-34-620-4A1-E

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. A21-B0-34-620-4A1-E is a single-pole circuit breaker designed for panel mounting. It features a magnetic hydraulic delay mechanism.
Stock on Request
$ Price Range: $0.99

A21-B0-34-620-4A1-E 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

A21-B0-34-620-4A1-E Description

Short technical summary and product information.

This Littelfuse Inc. A21-B0-34-620-4A1-E is a circuit breaker with a current rating of 20A and a voltage rating of 250V. It is designed for panel mounting and utilizes a magnetic hydraulic delay for its tripping mechanism.

 

The breaker has a single pole and a rocker actuator type with no illumination. It is specified as RoHS3 Compliant, with an MSL of 1 Unlimited, and REACH Unaffected.

 

Key electrical characteristics include its 20A current capacity and 250V voltage rating, making it suitable for various power distribution and protection applications. The panel mount design facilitates integration into control panels and enclosures.

A21-B0-34-620-4A1-E Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse Inc. A21-B0-34-620-4A1-E Circuit Breaker
Subcategory: Circuit Breaker

A21-B0-34-620-4A1-E Compliance

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

A21-B0-34-620-4A1-E Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

A21-B0-34-620-4A1-E Features

  • 20A current rating for power protection.
  • 250V voltage rating suitable for AC applications.
  • Panel mount design for easy integration.
  • Magnetic hydraulic delay for tripping.
  • Single pole, rocker actuator.

A21-B0-34-620-4A1-E Applications

  • Used in power distribution systems.
  • Suitable for control panel applications.
  • Provides overcurrent protection.
  • General purpose circuit protection.

A21-B0-34-620-4A1-E FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the A21-B0-34-620-4A1-E circuit breaker?

The current rating is 20A.

What is the voltage rating for this circuit breaker?

The voltage rating is 250V.

How is the A21-B0-34-620-4A1-E circuit breaker mounted?

It is designed for panel mounting.

What type of breaker mechanism does this unit use?

It uses a magnetic (hydraulic delay) breaker type.

How many poles does the A21-B0-34-620-4A1-E have?

It has 1 pole.

What is the RoHS status of this component?

It is RoHS3 Compliant.

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

The MSL is 1 Unlimited.

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