AA2-B0-46-645-5B2-C The Littelfuse AA2-B0-46-645-5B2-C is a 2-pole magnetic hydraulic delay circuit breaker rated for 45A at 277V. It features a panel mount design with a lever actuator.
Mfr Part #:

AA2-B0-46-645-5B2-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse AA2-B0-46-645-5B2-C is a 2-pole magnetic hydraulic delay circuit breaker rated for 45A at 277V. It features a panel mount design with a lever actuator.
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AA2-B0-46-645-5B2-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

AA2-B0-46-645-5B2-C Description

Short technical summary and product information.

The Littelfuse AA2-B0-46-645-5B2-C is a magnetic (hydraulic delay) circuit breaker designed for overcurrent protection in electrical systems. It is rated for a continuous current of 45A at a voltage of 277V, making it suitable for a variety of industrial and commercial applications.

 

The breaker features a 2-pole configuration and a panel mount design, allowing for secure installation in control panels and equipment enclosures. The lever actuator provides a clear visual indication of the breaker's status and allows for manual reset after a trip event. The hydraulic delay mechanism provides time-delayed tripping, which helps to prevent nuisance tripping from temporary inrush currents while still providing reliable protection against sustained overloads and short circuits.

 

This circuit breaker is approved by CCC, CSA, and UL, indicating compliance with major international safety standards. It is designed for use in branch circuit protection, equipment protection, and as a disconnect switch in a wide range of applications.

AA2-B0-46-645-5B2-C Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse AA2-B0-46-645-5B2-C Magnetic (Hydraulic Delay) Circuit Breaker, 45A, 277V, 2-Pole, Panel Mount
Subcategory: Magnetic (Hydraulic Delay) Circuit Breaker

AA2-B0-46-645-5B2-C Compliance

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

AA2-B0-46-645-5B2-C Features

  • Rated for 45A continuous current at 277V.
  • 2-pole magnetic hydraulic delay circuit breaker.
  • Panel mount design with lever actuator.
  • Approved by CCC, CSA, and UL.
  • Provides time-delayed overcurrent protection.

AA2-B0-46-645-5B2-C Applications

  • Used in industrial control panel protection.
  • Suitable for branch circuit overcurrent protection.
  • Ideal for equipment disconnect and protection.
  • Applied in commercial power distribution systems.

AA2-B0-46-645-5B2-C FAQs

6 frequently asked questions generated from this part’s specifications.
What is the current rating of the AA2-B0-46-645-5B2-C circuit breaker?

The current rating is 45A.

What is the voltage rating of this circuit breaker?

The voltage rating is 277V.

What type of circuit breaker is the AA2-B0-46-645-5B2-C?

It is a Magnetic (Hydraulic Delay) circuit breaker.

How many poles does this circuit breaker have?

It has 2 poles.

What is the mounting type for this circuit breaker?

It is a Panel Mount circuit breaker.

What approvals does the AA2-B0-46-645-5B2-C hold?

It is approved by CCC, CSA, and UL.

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