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AD1-B0-14-440-139-MK The Littelfuse Inc. AD1-B0-14-440-139-MK is a 1-pole, magnetic hydraulic delay circuit breaker. It features a 4A current rating and a 277VDC voltage rating.
Mfr Part #:

AD1-B0-14-440-139-MK

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. AD1-B0-14-440-139-MK is a 1-pole, magnetic hydraulic delay circuit breaker. It features a 4A current rating and a 277VDC voltage rating.
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AD1-B0-14-440-139-MK 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
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AD1-B0-14-440-139-MK Description

Short technical summary and product information.

This Littelfuse Inc. AD1-B0-14-440-139-MK is a single-pole circuit breaker designed for panel mounting with a snap-in mechanism. It utilizes a magnetic hydraulic delay mechanism for reliable operation.

 

The breaker has a current rating of 4A and a voltage rating of 277VDC. It is approved by CCC, UL489A, and VDE. The actuator type is a rocker, and it does not feature illumination.

 

This component is suitable for applications requiring robust circuit protection with specific current and voltage handling capabilities. Its panel mount design facilitates easy integration into various electrical enclosures and systems.

AD1-B0-14-440-139-MK Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse Inc. AD1-B0-14-440-139-MK Circuit Breaker

AD1-B0-14-440-139-MK Compliance

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

AD1-B0-14-440-139-MK Features

  • 4A current rating
  • 277VDC voltage rating
  • 1-pole magnetic hydraulic delay breaker
  • Panel mount, snap-in installation
  • Rocker actuator type

AD1-B0-14-440-139-MK Applications

  • General purpose circuit protection
  • Integration into electrical enclosures
  • Systems requiring specific current ratings
  • Applications needing 277VDC protection

AD1-B0-14-440-139-MK FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the AD1-B0-14-440-139-MK?

4A.

What is the voltage rating?

277VDC.

How many poles does it have?

1 pole.

What type of breaker is it?

Magnetic (Hydraulic Delay).

What actuator type does it use?

Rocker actuator.

What mounting type is supported?

Panel mount, snap-in.

What approvals does it hold?

CCC, UL489A, VDE.

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