BA1-B0-10-640-521-D The Littelfuse Inc. BA1-B0-10-640-521-D is a 1-pole circuit breaker designed for panel mounting. It features a 40A current rating and a 277V voltage rating.
Mfr Part #:

BA1-B0-10-640-521-D

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. BA1-B0-10-640-521-D is a 1-pole circuit breaker designed for panel mounting. It features a 40A current rating and a 277V voltage rating.
Stock on Request

BA1-B0-10-640-521-D 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-B0-10-640-521-D Description

Short technical summary and product information.

This Littelfuse Inc. BA1-B0-10-640-521-D is a single-pole circuit breaker with a magnetic hydraulic delay mechanism. It is rated for 40 Amps and 277 Volts, making it suitable for various power distribution applications.

 

The breaker is designed for panel mounting and features a lever actuator for easy operation. It has received approvals from CCC, CSA, UL, and VDE, indicating compliance with international safety standards.

 

Environmental compliance includes RoHS3 compliance and Moisture Sensitivity Level 1. The REACH status is unaffected. This component is ideal for applications requiring reliable overcurrent protection in a compact, panel-mountable form factor.

BA1-B0-10-640-521-D Quick Information

Product Type: Circuit Breaker
Series: BA1
Canonical Name: Littelfuse Inc. BA1-B0-10-640-521-D Circuit Breaker
Subcategory: Circuit Breaker

BA1-B0-10-640-521-D Compliance

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

BA1-B0-10-640-521-D Features

  • 40A current rating for robust protection.
  • 277V voltage rating for AC applications.
  • Panel mount design for easy integration.
  • Lever actuator for simple operation.
  • Approved by CCC, CSA, UL, and VDE.

BA1-B0-10-640-521-D Applications

  • Provides overcurrent protection for branch circuits.
  • Suitable for panel-mounted circuit protection applications.
  • Used in industrial control panels and equipment.
  • Magnetic hydraulic delay provides reliable overcurrent protection.
  • Ideal for 277V lighting and power distribution.

BA1-B0-10-640-521-D FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the BA1-B0-10-640-521-D circuit breaker?

The current rating is 40A.

What is the voltage rating for this circuit breaker?

The voltage rating is 277V.

How is the BA1-B0-10-640-521-D circuit breaker mounted?

It is designed for panel mounting.

What type of actuator does this circuit breaker have?

It features a lever actuator.

What are the approval agencies for this circuit breaker?

It is approved by CCC, CSA, UL, and VDE.

Is this circuit breaker RoHS compliant?

Yes, it is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for this part?

The Moisture Sensitivity Level is 1 Unlimited.

BA1-B0-10-640-521-D Alternate Parts

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The Littelfuse Inc. BA1-B0-14-640-C22-D is a magnetic (hydraulic delay) circuit breaker. It features a 40A current rating and a 277V voltage rating.
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BA1-B0-14-640-512-D
BA1-B0-14-640-512-D
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The Littelfuse BA1-B0-14-640-512-D is a 40A, 277V, 1-pole magnetic hydraulic delay circuit breaker with lever actuator and panel mount. It is approved by CCC, CSA, UL, and VDE.
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BA1-B0-14-640-521-D
BA1-B0-14-640-521-D
Littelfuse Inc.
The Littelfuse Inc. BA1-B0-14-640-521-D is a single-pole, magnetic hydraulic delay circuit breaker. It features a 40A current rating and a 277V voltage rating.
View Part
BA1-B0-14-640-522-D
BA1-B0-14-640-522-D
Littelfuse Inc.
The Littelfuse Inc. BA1-B0-14-640-522-D is a single-pole circuit breaker designed for panel mounting. It features a 40A current rating and a 277V voltage rating.
View Part
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