BA2-B3-12-640-521-C The Littelfuse Inc. BA2-B3-12-640-521-C is a 2-pole circuit breaker designed for panel mounting. It features a magnetic hydraulic delay mechanism and a 40A current rating.
Mfr Part #:

BA2-B3-12-640-521-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. BA2-B3-12-640-521-C is a 2-pole circuit breaker designed for panel mounting. It features a magnetic hydraulic delay mechanism and a 40A current rating.
Stock on Request
$ Price Range: $0.99

BA2-B3-12-640-521-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
Storage Temperature
Tape & Reel
Voltage Rating

BA2-B3-12-640-521-C Description

Short technical summary and product information.

This Littelfuse Inc. circuit breaker, part number BA2-B3-12-640-521-C, is a robust solution for circuit protection. It is rated for 40A and operates at up to 277V.

 

The breaker utilizes a magnetic hydraulic delay, offering reliable tripping characteristics for various applications. It features a simple lever actuator and is designed for panel mounting, ensuring secure installation in control panels and equipment.

 

With two poles, this circuit breaker provides enhanced circuit isolation. It is approved by CCC, CSA, and UL agencies, indicating compliance with stringent safety standards. The unit is RoHS3 compliant and has an MSL 1 rating, suitable for a wide range of environmental conditions.

BA2-B3-12-640-521-C Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse Inc. BA2-B3-12-640-521-C Circuit Breaker
Subcategory: Circuit Breaker

BA2-B3-12-640-521-C Compliance

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

BA2-B3-12-640-521-C Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

BA2-B3-12-640-521-C Features

  • 40A current rating for robust protection.
  • 277V voltage rating for AC applications.
  • Magnetic hydraulic delay for reliable tripping.
  • Panel mount design for secure installation.
  • 2-pole configuration for circuit isolation.

BA2-B3-12-640-521-C Applications

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

BA2-B3-12-640-521-C FAQs

6 frequently asked questions generated from this part’s specifications.
What is the current rating of the BA2-B3-12-640-521-C circuit breaker?

The current rating is 40A.

What is the voltage rating for this circuit breaker?

The voltage rating is 277V.

How is the BA2-B3-12-640-521-C circuit breaker mounted?

It is designed for panel mounting.

What type of delay mechanism does this breaker use?

It uses a magnetic (hydraulic delay) mechanism.

How many poles does the BA2-B3-12-640-521-C have?

It has 2 poles.

Which approval agencies have certified this circuit breaker?

It is approved by CCC, CSA, and UL.

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