AA1-B0-24-620-9B2-C This Littelfuse AA1-B0-24-620-9B2-C is a 20A, 277V single-pole magnetic hydraulic delay circuit breaker. It features a panel mount design with a lever actuator.
Mfr Part #:

AA1-B0-24-620-9B2-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
This Littelfuse AA1-B0-24-620-9B2-C is a 20A, 277V single-pole magnetic hydraulic delay circuit breaker. It features a panel mount design with a lever actuator.
Stock on Request

AA1-B0-24-620-9B2-C 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

AA1-B0-24-620-9B2-C Description

Short technical summary and product information.

The Littelfuse AA1-B0-24-620-9B2-C is a magnetic hydraulic delay circuit breaker designed for overcurrent protection in electrical circuits. It is rated for 20A continuous current at 277V AC.

 

This single-pole breaker uses a magnetic trip mechanism with hydraulic delay, providing time-delayed response to short circuits and overloads. The panel mount enclosure allows for secure installation in control panels or equipment chassis. The lever actuator provides manual on/off control and trip indication.

 

The breaker is RoHS3 compliant and has an MSL of 1 (unlimited). It is unaffected by REACH regulations. This component is suitable for a variety of commercial and industrial applications requiring reliable circuit protection.

AA1-B0-24-620-9B2-C Quick Information

Product Type: Circuit Breaker
Series: AA1-B0
Canonical Name: Littelfuse AA1-B0-24-620-9B2-C Magnetic Hydraulic Delay Circuit Breaker, 20A, 277V, 1-Pole, Panel Mount
Subcategory: Magnetic Circuit Breaker

AA1-B0-24-620-9B2-C Compliance

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

AA1-B0-24-620-9B2-C Features

  • 20A current rating at 277V AC.
  • Magnetic hydraulic delay trip mechanism.
  • Single-pole panel mount design.
  • Lever actuator for manual control.
  • RoHS3 compliant and REACH unaffected.

AA1-B0-24-620-9B2-C Applications

  • Protects single-pole 20A electrical circuits.
  • Used in panel-mounted equipment protection applications.
  • Suitable for 277V lighting and control circuits.
  • Provides overcurrent protection for single-phase loads.

AA1-B0-24-620-9B2-C FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage rating of the AA1-B0-24-620-9B2-C?

277V

What is the current rating of this circuit breaker?

20A

How many poles does the AA1-B0-24-620-9B2-C have?

1 pole

What type of trip mechanism does this breaker use?

Magnetic hydraulic delay

What is the mounting type of this circuit breaker?

Panel mount

What type of actuator does this breaker have?

Lever

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