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MD1-B-30-450-3-A12-B-C The Littelfuse Inc. MD1-B-30-450-3-A12-B-C is a single-pole, magnetic hydraulic delay circuit breaker. It features a 5A current rating and a 250V voltage rating.
Mfr Part #:

MD1-B-30-450-3-A12-B-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. MD1-B-30-450-3-A12-B-C is a single-pole, magnetic hydraulic delay circuit breaker. It features a 5A current rating and a 250V voltage rating.
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MD1-B-30-450-3-A12-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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MD1-B-30-450-3-A12-B-C Description

Short technical summary and product information.

This Littelfuse Inc. circuit breaker, part number MD1-B-30-450-3-A12-B-C, is designed for panel mounting. It operates as a single-pole magnetic breaker with a hydraulic delay mechanism, providing reliable overcurrent protection.

 

The breaker is rated for 5 Amperes and can handle up to 250 Volts. It features a rocker actuator for manual operation and does not include illumination. The unit is compliant with RoHS3 standards and has a Moisture Sensitivity Level (MSL) of 1.

 

Key electrical specifications include a 5A 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, suitable for integration into various electrical enclosures and control panels.

MD1-B-30-450-3-A12-B-C Quick Information

Product Type: Circuit Breaker
Series: MD1-B
Canonical Name: Littelfuse Inc. MD1-B-30-450-3-A12-B-C Magnetic Hydraulic Delay Circuit Breaker
Subcategory: Magnetic (Hydraulic Delay)

MD1-B-30-450-3-A12-B-C Compliance

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

MD1-B-30-450-3-A12-B-C Features

  • 5A current rating for protection.
  • 250V voltage rating for circuits.
  • Magnetic hydraulic delay breaker type.
  • Single pole configuration.
  • Panel mount design.

MD1-B-30-450-3-A12-B-C Applications

  • Overcurrent protection for power supplies.
  • Used in industrial control panels.
  • Suitable for motor branch circuits.
  • Protects lighting and HVAC equipment.

MD1-B-30-450-3-A12-B-C FAQs

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

5A

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 type of actuator does this circuit breaker have?

Rocker

Does this circuit breaker have illumination?

No, it does not have illumination.

How is this circuit breaker mounted?

Panel Mount

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