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MB1-B-64-440-1-A34-B-D The Littelfuse Inc. MB1-B-64-440-1-A34-B-D is a single-pole circuit breaker designed for panel mounting. It features a magnetic (hydraulic delay) tripping mechanism.
Mfr Part #:

MB1-B-64-440-1-A34-B-D

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. MB1-B-64-440-1-A34-B-D is a single-pole circuit breaker designed for panel mounting. It features a magnetic (hydraulic delay) tripping mechanism.
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MB1-B-64-440-1-A34-B-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
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MB1-B-64-440-1-A34-B-D Description

Short technical summary and product information.

This Littelfuse Inc. MB1-B-64-440-1-A34-B-D is a single-pole circuit breaker with a current rating of 4A and a voltage rating of 250V. It utilizes a magnetic (hydraulic delay) mechanism for protection.

 

The breaker is designed for panel mounting and features a rocker actuator. It has no illumination.

 

Key electrical specifications include a 4A current rating and a 250V voltage rating. The breaker type is magnetic with a hydraulic delay, and it has one pole. The mounting type is panel mount, and the actuator is a rocker.

 

Compliance information indicates RoHS3 compliance, MSL 1 Unlimited, and REACH unaffected status. Approval agencies include CCC, CSA, UL, and VDE.

MB1-B-64-440-1-A34-B-D Quick Information

Product Type: Circuit Breaker
Series: MB1-B
Canonical Name: Littelfuse Inc. MB1-B-64-440-1-A34-B-D Circuit Breaker
Subcategory: Circuit Breaker

MB1-B-64-440-1-A34-B-D Compliance

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

MB1-B-64-440-1-A34-B-D Features

  • 4A current rating for reliable protection.
  • 250V voltage rating suitable for various applications.
  • Magnetic (hydraulic delay) breaker type.
  • Panel mount with rocker actuator.
  • Approved by CCC, CSA, UL, and VDE.

MB1-B-64-440-1-A34-B-D Applications

  • Ideal for general circuit protection.
  • Suitable for industrial control panels.
  • Used in equipment requiring specific tripping curves.
  • Applicable in systems with 250V maximum voltage.

MB1-B-64-440-1-A34-B-D FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of this circuit breaker?

4A.

What is the voltage rating?

250V.

What type of breaker is it?

Magnetic (Hydraulic Delay).

How many poles does it have?

1 pole.

What is the mounting type?

Panel Mount.

What is the actuator type?

Rocker.

Does it have illumination?

No.

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The Littelfuse ME1-B-24-440-1-A32-B-D is a panel mount circuit breaker. It features a magnetic (hydraulic delay) mechanism with a 4A current rating and 250V voltage rating.
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