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MD1-S-64-450-1-A43-B-C This Littelfuse MD1-S-64-450-1-A43-B-C is a 5A, 250V, 1-pole magnetic (hydraulic delay) circuit breaker. It features a rocker actuator and panel mount design.
Mfr Part #:

MD1-S-64-450-1-A43-B-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
This Littelfuse MD1-S-64-450-1-A43-B-C is a 5A, 250V, 1-pole magnetic (hydraulic delay) circuit breaker. It features a rocker actuator and panel mount design.
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MD1-S-64-450-1-A43-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-S-64-450-1-A43-B-C Description

Short technical summary and product information.

The Littelfuse MD1-S-64-450-1-A43-B-C is a single-pole magnetic circuit breaker designed for overcurrent protection in various applications. It is rated for 5A continuous current and 250V AC/DC, utilizing a hydraulic delay mechanism for precise trip characteristics. The breaker features a rocker actuator for manual reset and is intended for panel mount installation. This device is approved by CCC, CSA, and UL1077, ensuring compliance with international safety standards. With a compact form factor, it is suitable for use in control panels, power distribution units, and industrial equipment where reliable circuit protection is required.

MD1-S-64-450-1-A43-B-C Quick Information

Product Type: Circuit Breaker
Series: MD1
Canonical Name: Littelfuse MD1 Series Magnetic Circuit Breaker, 5A, 250V, 1 Pole, Rocker Actuator
Subcategory: Magnetic Circuit Breakers

MD1-S-64-450-1-A43-B-C Compliance

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

MD1-S-64-450-1-A43-B-C Features

  • Rated 5A continuous current at 250V.
  • Magnetic hydraulic delay trip mechanism.
  • Single-pole design for overcurrent protection.
  • Rocker actuator for manual reset.
  • Approved to CCC, CSA, and UL1077.

MD1-S-64-450-1-A43-B-C Applications

  • Used in industrial control panels.
  • Protects power distribution circuits.
  • Suitable for HVAC and lighting systems.
  • Ideal for motor control applications.

MD1-S-64-450-1-A43-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?

250V.

What type of breaker is this?

Magnetic (Hydraulic Delay) circuit breaker.

How many poles does it have?

1 pole.

What is the actuator type?

Rocker.

What approvals does it carry?

CCC, CSA, and UL1077.

What is the mounting type?

Panel Mount.

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