BA1-B2-12-640-521-C The Littelfuse Inc. BA1-B2-12-640-521-C is a magnetic (hydraulic delay) circuit breaker rated for 40A and 277V. It features a lever actuator and panel mount design.
Mfr Part #:

BA1-B2-12-640-521-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. BA1-B2-12-640-521-C is a magnetic (hydraulic delay) circuit breaker rated for 40A and 277V. It features a lever actuator and panel mount design.
Stock on Request

BA1-B2-12-640-521-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

BA1-B2-12-640-521-C Description

Short technical summary and product information.

This Littelfuse Inc. circuit breaker, part number BA1-B2-12-640-521-C, is designed for reliable circuit protection. It operates with a current rating of 40A and a voltage rating of 277V.

 

The breaker type is magnetic with a hydraulic delay, offering specific trip characteristics suitable for various applications. It features a simple lever actuator for manual operation and is designed for panel mounting, ensuring secure installation in control panels and equipment.

 

With one pole, this circuit breaker provides essential overcurrent protection. It is approved by CCC, CSA, and UL agencies, indicating compliance with relevant safety standards. The RoHS status is compliant with RoHS3, and it has an MSL of 1, signifying unlimited moisture sensitivity.

 

This component is suitable for applications requiring robust and dependable circuit interruption, where precise current and voltage ratings are critical for system safety and performance.

BA1-B2-12-640-521-C Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse Inc. BA1-B2-12-640-521-C Magnetic (Hydraulic Delay) Circuit Breaker
Subcategory: Circuit Breaker

BA1-B2-12-640-521-C Compliance

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

BA1-B2-12-640-521-C Features

  • 40A current rating for robust protection.
  • 277V voltage rating suitable for various systems.
  • Magnetic breaker with hydraulic delay.
  • Panel mount design for secure installation.
  • Lever actuator for manual operation.

BA1-B2-12-640-521-C Applications

  • Ideal for industrial control panels.
  • Suitable for power distribution systems.
  • Used in equipment requiring overcurrent protection.
  • Applicable in systems with 277V requirements.

BA1-B2-12-640-521-C FAQs

7 frequently asked questions generated from this part’s specifications.
What is the voltage rating of the BA1-B2-12-640-521-C?

277V.

What is the current rating?

40A.

What type of circuit breaker is this?

Magnetic (Hydraulic Delay).

How many poles does it have?

1 pole.

What is the actuator type?

Lever.

What mounting type is used?

Panel mount.

What approvals does it have?

CCC, CSA, UL.

BA1-B2-12-640-521-C Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.
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AA1-B0-14-640-5D1-C
AA1-B0-14-640-5D1-C
Littelfuse Inc.
The Littelfuse Inc. AA1-B0-14-640-5D1-C is a panel mount circuit breaker. It features a 40A current rating and a 277V voltage rating.
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BA1-B0-14-640-522-C
BA1-B0-14-640-522-C
Littelfuse Inc.
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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AA1-B0-34-640-5N1-C
AA1-B0-34-640-5N1-C
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The Littelfuse Inc. AA1-B0-34-640-5N1-C is a 1-pole circuit breaker with a 40A current rating and 277V voltage rating. It features a magnetic hydraulic delay and panel mount design.
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AA1-B0-11-640-5D2-C
AA1-B0-11-640-5D2-C
Littelfuse Inc.
The Littelfuse Inc. AA1-B0-11-640-5D2-C is a single-pole, magnetic hydraulic delay circuit breaker. It features a 40A current rating and a 277V voltage rating.
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