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MB1-B-34-440-3-A82-B-C Littelfuse MB1-B-34-440-3-A82-B-C is a single-pole magnetic hydraulic delay circuit breaker rated for 4A at 250V. It features a rocker actuator and panel mount design.
Mfr Part #:

MB1-B-34-440-3-A82-B-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse MB1-B-34-440-3-A82-B-C is a single-pole magnetic hydraulic delay circuit breaker rated for 4A at 250V. It features a rocker actuator and panel mount design.
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MB1-B-34-440-3-A82-B-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
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MB1-B-34-440-3-A82-B-C Description

Short technical summary and product information.

The Littelfuse MB1-B-34-440-3-A82-B-C is a single-pole magnetic hydraulic delay circuit breaker designed for overcurrent protection. It is rated for 4A continuous current at 250V AC/DC. The magnetic hydraulic delay mechanism provides time-delay tripping for inrush currents while ensuring fast response to short circuits.

 

The breaker uses a rocker actuator for manual on/off control and is designed for panel mount installation. It is not illuminated. The device is approved by CCC, CSA, and UL1077, making it suitable for various industrial and commercial applications.

 

This circuit breaker is part of Littelfuse's MB1-B series, offering reliable overcurrent protection in a compact, single-pole form factor. The panel mount package allows for easy integration into control panels and equipment.

MB1-B-34-440-3-A82-B-C Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse MB1-B-34-440-3-A82-B-C Magnetic Hydraulic Delay Circuit Breaker, 4A/250V, 1 Pole, Rocker Actuator, Panel Mount
Subcategory: Magnetic Circuit Breaker

MB1-B-34-440-3-A82-B-C Compliance

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

MB1-B-34-440-3-A82-B-C Features

  • Rated for 4A continuous current at 250V.
  • Single-pole magnetic hydraulic delay design.
  • Panel mount package with rocker actuator.
  • UL1077, CSA, CCC approved.
  • Non-illuminated actuator.

MB1-B-34-440-3-A82-B-C Applications

  • Ideal for overcurrent protection in industrial equipment.
  • Used in power distribution panels.
  • Suitable for motor control circuits.
  • Applicable in commercial machinery.

MB1-B-34-440-3-A82-B-C FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the MB1-B-34-440-3-A82-B-C?

4A.

What is the voltage rating of this circuit breaker?

250V.

What type of circuit breaker is this?

Magnetic (Hydraulic Delay).

How many poles does this circuit breaker have?

1 pole.

What actuator type does it use?

Rocker.

What is the mounting type of this circuit breaker?

Panel mount.

What approvals does this circuit breaker have?

CCC, CSA, UL1077.

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