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BA1-B0-20-640-521-D The Littelfuse Inc. BA1-B0-20-640-521-D is a single-pole, magnetic hydraulic delay circuit breaker. It offers a 40A current rating and a 250V voltage rating.
Mfr Part #:

BA1-B0-20-640-521-D

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. BA1-B0-20-640-521-D is a single-pole, magnetic hydraulic delay circuit breaker. It offers a 40A current rating and a 250V voltage rating.
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BA1-B0-20-640-521-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
Industrial Grade
Mounting Type
Number of Poles
Voltage Rating
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BA1-B0-20-640-521-D Description

Short technical summary and product information.

This Littelfuse Inc. BA1-B0-20-640-521-D is a single-pole circuit breaker designed for panel mounting. It features a magnetic (hydraulic delay) tripping mechanism, providing a current rating of 40A and a voltage rating of 250V.

 

The breaker is approved by multiple agencies including CCC, CSA, UL, and VDE. It has a lever actuator and does not include illumination. The component is RoHS3 compliant, has a Moisture Sensitivity Level (MSL) of 1, and is REACH unaffected.

 

Its robust construction and reliable performance make it suitable for various protection applications where precise current interruption is required. The panel mount design ensures easy integration into control panels and equipment.

BA1-B0-20-640-521-D Quick Information

Product Type: Circuit Breaker
Series: BA1
Canonical Name: Littelfuse Inc. BA1-B0-20-640-521-D Circuit Breaker
Subcategory: Circuit Breaker

BA1-B0-20-640-521-D Compliance

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

BA1-B0-20-640-521-D Features

  • 40A current rating for protection.
  • 250V operating voltage capacity.
  • Panel mount for easy integration.
  • Magnetic hydraulic delay mechanism.
  • Single-pole configuration.

BA1-B0-20-640-521-D Applications

  • Industrial control panels.
  • Power distribution systems.
  • Equipment protection circuits.
  • Automation machinery.

BA1-B0-20-640-521-D FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the BA1-B0-20-640-521-D?

40A.

What is the voltage rating of this circuit breaker?

250V.

What type of actuator does this breaker use?

Lever actuator.

How many poles does this circuit breaker have?

1 pole.

What mounting type does this breaker require?

Panel mount.

What is the breaker type of the BA1-B0-20-640-521-D?

Magnetic (Hydraulic Delay).

What agency approvals does this circuit breaker have?

CCC, CSA, UL, VDE.

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