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MD1-B-34-440-1-A32-B-B The Littelfuse Inc. MD1-B-34-440-1-A32-B-B is a magnetic (hydraulic delay) circuit breaker. It features a 4A current rating and a 250V AC voltage rating.
Mfr Part #:

MD1-B-34-440-1-A32-B-B

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. MD1-B-34-440-1-A32-B-B is a magnetic (hydraulic delay) circuit breaker. It features a 4A current rating and a 250V AC voltage rating.
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MD1-B-34-440-1-A32-B-B Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Actuator Type
Breaker Type
Current Rating
Current Rating (Amps)
Illumination
Mounting Type
Number of Poles
Voltage Rating
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MD1-B-34-440-1-A32-B-B Description

Short technical summary and product information.

This Littelfuse Inc. MD1-B-34-440-1-A32-B-B is a magnetic (hydraulic delay) circuit breaker designed for panel mounting. It has a current rating of 4A and a voltage rating of 250V AC, with an additional DC voltage rating of 80V.

 

The breaker is a single-pole unit with a rocker actuator and no illumination. It is suitable for applications requiring reliable overcurrent protection.

 

Key specifications include a 4A current rating and a 250V AC / 80V DC voltage rating. The panel mount design ensures easy integration into control panels and equipment.

 

Environmental compliance includes RoHS3 compliance, MSL 1, and REACH unaffected status, though these are marked with low confidence.

MD1-B-34-440-1-A32-B-B Quick Information

Product Type: Circuit Breaker
Series: MD
Canonical Name: Carling Technologies MD1-B-34-440-1-A32-B-B Magnetic (Hydraulic Delay) Circuit Breaker
Subcategory: Magnetic (Hydraulic Delay)

MD1-B-34-440-1-A32-B-B Compliance

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

MD1-B-34-440-1-A32-B-B Features

  • 4A current rating for circuit protection.
  • 250V AC and 80V DC voltage ratings.
  • Magnetic (hydraulic delay) breaker type.
  • Panel mount for easy integration.
  • Single-pole rocker actuator design.

MD1-B-34-440-1-A32-B-B Applications

  • Provides overcurrent protection.
  • Suitable for panel-mounted systems.
  • Used in electrical control circuits.
  • Designed for AC and DC applications.

MD1-B-34-440-1-A32-B-B FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the MD1-B-34-440-1-A32-B-B?

The current rating is 4A.

What is the voltage rating of this circuit breaker?

The voltage rating is 250V AC and 80V DC.

What type of breaker is the MD1-B-34-440-1-A32-B-B?

It is a magnetic hydraulic circuit breaker.

How many poles does this circuit breaker have?

It has 1 pole.

What type of actuator does this breaker use?

It uses a rocker actuator.

Is the MD1-B-34-440-1-A32-B-B illuminated?

No, it is non-illuminated.

What is the mounting type for this circuit breaker?

It is designed for panel mount.

MD1-B-34-440-1-A32-B-B Alternate Parts

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MA1-B-32-440-1-A22-B-C
MA1-B-32-440-1-A22-B-C
Littelfuse Inc.
The Littelfuse Inc. MA1-B-32-440-1-A22-B-C is a magnetic (hydraulic delay) circuit breaker with a 4A current rating and 250V AC/80V DC voltage rating. It is designed for panel mounting.
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