AA1-B0-12-640-5B2-C The Littelfuse Inc. AA1-B0-12-640-5B2-C is a magnetic hydraulic delay circuit breaker. It features a 40A current rating and 277V voltage rating.
Mfr Part #:

AA1-B0-12-640-5B2-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. AA1-B0-12-640-5B2-C is a magnetic hydraulic delay circuit breaker. It features a 40A current rating and 277V voltage rating.
Stock on Request

AA1-B0-12-640-5B2-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
SVHC Present
Voltage Rating

AA1-B0-12-640-5B2-C Description

Short technical summary and product information.

This Littelfuse Inc. AA1-B0-12-640-5B2-C is a single-pole circuit breaker designed for panel mounting. It operates with a magnetic hydraulic delay mechanism.

 

Key electrical specifications include a current rating of 40A and a voltage rating of 277V. The actuator type is a lever, and it does not feature illumination. Approval agencies include CCC, CSA, and UL.

 

Compliance information indicates RoHS3 compliance, MSL 1 Unlimited, and REACH unaffected status. However, this compliance data is unverified and should be confirmed.

 

This circuit breaker is suitable for applications requiring reliable overcurrent protection in a panel-mount configuration.

AA1-B0-12-640-5B2-C Quick Information

Product Type: Circuit Breaker
Series: AA1
Canonical Name: Littelfuse Inc. AA1-B0-12-640-5B2-C Circuit Breaker
Subcategory: Circuit Breaker

AA1-B0-12-640-5B2-C Compliance

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

AA1-B0-12-640-5B2-C Features

  • 40A current rating for power circuits.
  • 277V voltage rating for AC applications.
  • Magnetic hydraulic delay for specific tripping.
  • Panel mount design for easy integration.
  • Lever actuator for manual operation.

AA1-B0-12-640-5B2-C Applications

  • Overcurrent protection in commercial lighting circuits.
  • Branch circuit protection in industrial control panels.
  • Motor protection with inrush current tolerance.
  • Power distribution in HVAC equipment.
  • Protection for electrical machinery and tools.

AA1-B0-12-640-5B2-C FAQs

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

The Littelfuse AA1-B0-12-640-5B2-C has a current rating of 40A.

What is the voltage rating of this circuit breaker?

The voltage rating is 277V.

What type of breaker is this?

This is a magnetic hydraulic delay circuit breaker.

How many poles does this circuit breaker have?

This circuit breaker has 1 pole.

What approvals does this circuit breaker have?

It is approved by CCC, CSA, and UL.

What is the actuator type?

The actuator type is a lever.

What is the mounting type for this circuit breaker?

It is designed for panel mount installation.

AA1-B0-12-640-5B2-C Alternate Parts

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AA1-B0-34-640-5B1-C
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The Littelfuse Inc. AA1-B0-34-640-5B1-C is a 1-pole, 40A magnetic circuit breaker designed for panel mounting. It features a 277V voltage rating and lever actuator.
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BA1-B0-14-640-522-C
BA1-B0-14-640-522-C
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This Littelfuse Inc. circuit breaker, part number BA1-B0-14-640-522-C, is a panel mount magnetic hydraulic delay type. It features a 40A current rating and a 277V voltage rating.
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