AF1-B0-12-640-534-I The AF1-B0-12-640-534-I is a circuit breaker manufactured by Littelfuse with a current rating of 40A and voltage rating of 277V. It features a magnetic hydraulic delay mechanism and is designed for panel mounting.
Mfr Part #:

AF1-B0-12-640-534-I

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The AF1-B0-12-640-534-I is a circuit breaker manufactured by Littelfuse with a current rating of 40A and voltage rating of 277V. It features a magnetic hydraulic delay mechanism and is designed for panel mounting.
Stock on Request
$ Price Range: $0.99

AF1-B0-12-640-534-I 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

AF1-B0-12-640-534-I Description

Short technical summary and product information.

The AF1-B0-12-640-534-I is a circuit breaker produced by Littelfuse Inc. It is rated for 40 amperes of current and operates at a voltage of 277 volts. The breaker type is magnetic with hydraulic delay, providing reliable circuit protection for electrical systems. It has a single pole configuration and uses a rocker actuator for operation. The device is designed for panel mounting and does not include illumination features.

 

This circuit breaker is suitable for use in various electrical protection applications, including industrial and commercial systems. It is compliant with multiple approval agencies, including CCC, CSA, UL1077, and UL1500. The product is part of Littelfuse's circuit protection category, ensuring adherence to safety and quality standards.

AF1-B0-12-640-534-I Quick Information

Product Type: Circuit Breaker
Canonical Name: CIRCUIT BREAKER

AF1-B0-12-640-534-I Compliance

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

AF1-B0-12-640-534-I Estimated Pricing

Qty Low High
1+ $0.99 $0.99

Estimated market price range - modelled values for guidance only, not live distributor offers.

AF1-B0-12-640-534-I Features

  • Rated for 40A current
  • Operates at 277V voltage
  • Magnetic hydraulic delay mechanism
  • Single pole configuration
  • Panel mount design

AF1-B0-12-640-534-I Applications

  • Suitable for circuit protection in electrical systems.
  • Used in panel-mounted circuit breaker applications.
  • Ideal for residential and commercial electrical panels.
  • Provides overcurrent protection for 40A circuits.
  • Suitable for use with 277V electrical systems.

AF1-B0-12-640-534-I FAQs

5 frequently asked questions generated from this part’s specifications.
What is the voltage rating of the AF1-B0-12-640-534-I?

The voltage rating is 277V.

What is the current rating of this circuit breaker?

The current rating is 40A.

What type of breaker is the AF1-B0-12-640-534-I?

It is a magnetic (hydraulic delay) breaker.

How many poles does this circuit breaker have?

It has 1 pole.

What mounting type is used for this breaker?

It is designed for panel mounting.

AF1-B0-12-640-534-I Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.
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A11-B8-12-640-532-I
A11-B8-12-640-532-I
Littelfuse Inc.
The Littelfuse Inc. A11-B8-12-640-532-I is a single-pole circuit breaker designed for panel mounting. It features a rocker actuator and a magnetic hydraulic delay mechanism.
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AF1-B0-11-640-544-I
AF1-B0-11-640-544-I
Littelfuse Inc.
The Littelfuse Inc. AF1-B0-11-640-544-I is a panel mount circuit breaker. It features a 40A current rating and a 277V voltage rating.
View Part
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