AC1-B0-21-620-111-D The AC1-B0-21-620-111-D is a 20A, 250V single-pole circuit breaker designed for panel mounting. It utilizes a magnetic hydraulic delay mechanism with a rocker actuator and lacks illumination.
Mfr Part #:

AC1-B0-21-620-111-D

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The AC1-B0-21-620-111-D is a 20A, 250V single-pole circuit breaker designed for panel mounting. It utilizes a magnetic hydraulic delay mechanism with a rocker actuator and lacks illumination.
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AC1-B0-21-620-111-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

AC1-B0-21-620-111-D Description

Short technical summary and product information.

The AC1-B0-21-620-111-D is a single-pole circuit breaker manufactured by Littelfuse Inc., engineered for reliable overcurrent protection in electrical systems. Rated for 20 amperes at 250 volts, this component provides robust circuit safeguarding against short circuits and sustained overloads.

 

This breaker employs a magnetic hydraulic delay trip mechanism, which ensures accurate tripping characteristics while preventing nuisance trips during temporary inrush currents. The unit features a rocker-style actuator for manual operation, allowing users to easily toggle the circuit on or off. It is designed specifically for panel mounting, facilitating straightforward integration into control panels and industrial enclosures.

 

Certified by major global approval agencies including UL, CSA, VDE, and CCC, the AC1-B0-21-620-111-D meets stringent international safety standards. Its construction supports applications requiring dependable manual reset capabilities and precise current interruption without integrated indicator lighting. Engineers selecting this component benefit from its standardized form factor and verified compliance for worldwide deployment.

AC1-B0-21-620-111-D Quick Information

Product Type: Circuit Breaker
Canonical Name: AC1-B0-21-620-111-D
Subcategory: Panel Mount

AC1-B0-21-620-111-D Compliance

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

AC1-B0-21-620-111-D Features

  • Rated for 20A continuous current operation.
  • Supports 250V maximum voltage rating.
  • Features magnetic hydraulic delay trip mechanism.
  • Single-pole design with rocker actuator.
  • Certified by UL, CSA, VDE, and CCC.

AC1-B0-21-620-111-D Applications

  • Ideal for industrial control panel protection.
  • Used in machinery power distribution systems.
  • Suitable for equipment main circuit isolation.
  • Applied in commercial HVAC control units.

AC1-B0-21-620-111-D FAQs

5 frequently asked questions generated from this part’s specifications.
What is the voltage rating of the AC1-B0-21-620-111-D?

The AC1-B0-21-620-111-D has a maximum voltage rating of 250V.

How many poles does this circuit breaker have?

This circuit breaker is configured as a single-pole device.

What type of actuator is used on this breaker?

The unit utilizes a rocker-style actuator for manual operation.

What mounting method is required for installation?

The component is designed for panel mounting.

Which safety certifications does this breaker hold?

It is approved by UL, CSA, VDE, and CCC agencies.

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The Littelfuse Inc. AD1-B0-26-620-1A3-D is a circuit breaker designed for panel mounting. It features a 20A current rating and a 250V voltage rating.
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AC1-B0-32-620-132-D
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The Littelfuse Inc. AC1-B0-32-620-132-D is a single-pole, panel mount circuit breaker. It features a magnetic hydraulic delay mechanism and a rocker actuator.
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