AA1-B0-52-612-1D1-C Littelfuse AA1-B0-52-612-1D1-C is a 1-pole magnetic hydraulic delay circuit breaker rated for 12A at 277V. It features a lever actuator and panel mount design.
Mfr Part #:

AA1-B0-52-612-1D1-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse AA1-B0-52-612-1D1-C is a 1-pole magnetic hydraulic delay circuit breaker rated for 12A at 277V. It features a lever actuator and panel mount design.
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AA1-B0-52-612-1D1-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-B0-52-612-1D1-C Description

Short technical summary and product information.

The Littelfuse AA1-B0-52-612-1D1-C is a single-pole magnetic hydraulic delay circuit breaker designed for overcurrent protection. It is rated for 12A continuous current at 277V AC. The magnetic hydraulic delay mechanism provides precise trip characteristics with time delay, making it suitable for applications requiring inrush current tolerance.

 

The breaker features a lever actuator for manual on/off control and is panel mounted for secure installation. It has no illumination. The unit is approved by CCC, CSA, and UL, indicating compliance with international safety standards.

 

This circuit breaker is intended for use in electrical distribution panels, industrial control equipment, and other applications where reliable overcurrent protection is needed. The panel mount design allows for easy integration into existing enclosures.

AA1-B0-52-612-1D1-C Quick Information

Product Type: Circuit Breaker
Series: AA1
Canonical Name: Littelfuse AA1-B0-52-612-1D1-C 1-Pole 12A 277V Magnetic Hydraulic Delay Circuit Breaker
Subcategory: Magnetic (Hydraulic Delay) Circuit Breaker

AA1-B0-52-612-1D1-C Compliance

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

AA1-B0-52-612-1D1-C Features

  • Rated for 12A continuous current at 277V.
  • Single-pole magnetic hydraulic delay mechanism.
  • Lever actuator for manual control.
  • Panel mount design for secure installation.
  • Approved by CCC, CSA, and UL.

AA1-B0-52-612-1D1-C Applications

  • Overcurrent protection for branch circuits.
  • Suitable for lighting and general loads.
  • Used in industrial control panels.
  • Protects HVAC equipment and motors.

AA1-B0-52-612-1D1-C FAQs

7 frequently asked questions generated from this part’s specifications.
What is the voltage rating of this circuit breaker?

The voltage rating is 277V.

What is the current rating?

The current rating is 12A.

What type of breaker is this?

This is a Magnetic (Hydraulic Delay) circuit breaker.

How many poles does it 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 panel mount.

What approval agencies does this breaker comply with?

It is approved by CCC, CSA, and UL.

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