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AA1-B0-20-425-2B2-C Littelfuse AA1-B0-20-425-2B2-C is a 1-pole magnetic hydraulic delay circuit breaker rated at 2.5A and 277V. It features a lever actuator and panel mount design.
Mfr Part #:

AA1-B0-20-425-2B2-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse AA1-B0-20-425-2B2-C is a 1-pole magnetic hydraulic delay circuit breaker rated at 2.5A and 277V. It features a lever actuator and panel mount design.
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AA1-B0-20-425-2B2-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
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AA1-B0-20-425-2B2-C Description

Short technical summary and product information.

The Littelfuse AA1-B0-20-425-2B2-C is a single-pole magnetic hydraulic delay circuit breaker designed for overcurrent protection. It is rated for 2.5A continuous current at 277V AC/DC. The magnetic hydraulic delay mechanism provides precise time-current characteristics suitable for applications requiring high inrush tolerance. The breaker features a lever actuator for manual reset and is not illuminated. It is approved by CCC, CSA, and UL for safety compliance. The panel mount design allows for easy installation in control panels and equipment. RoHS3 compliant with MSL 1 and REACH unaffected status.

AA1-B0-20-425-2B2-C Quick Information

Product Type: Circuit Breaker
Series: AA1
Canonical Name: Littelfuse AA1-B0-20-425-2B2-C Circuit Breaker, 1 Pole, 2.5A, 277V, Magnetic Hydraulic Delay
Subcategory: Magnetic Circuit Breakers

AA1-B0-20-425-2B2-C Compliance

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

AA1-B0-20-425-2B2-C Features

  • Current rating: 2.5A at 277V.
  • Magnetic hydraulic delay trip mechanism.
  • Single-pole design with lever actuator.
  • Panel mount for easy installation.
  • Approved by CCC, CSA, and UL.

AA1-B0-20-425-2B2-C Applications

  • Ideal for overcurrent protection in industrial control panels.
  • Used in power distribution equipment requiring high inrush tolerance.
  • Suitable for lighting and HVAC systems.
  • Applicable in machinery and automation equipment.

AA1-B0-20-425-2B2-C FAQs

7 frequently asked questions generated from this part’s specifications.
What is the voltage rating of the AA1-B0-20-425-2B2-C circuit breaker?

The voltage rating is 277V.

What is the current rating of this circuit breaker?

The current rating is 2.5A.

What type of trip mechanism does this breaker use?

It uses a magnetic hydraulic delay trip mechanism.

How many poles does this circuit breaker have?

It has 1 pole.

What is the actuator type?

The actuator type is a lever.

What mounting type does this breaker use?

It uses a panel mount.

Which safety agencies have approved this circuit breaker?

It is approved by CCC, CSA, and UL.

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