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MD1-B-12-450-1-A16-2-J Littelfuse MD1-B-12-450-1-A16-2-J is a 1-pole magnetic hydraulic delay circuit breaker rated at 5A and 250V. It features a panel mount design with a rocker actuator and is approved by CCC, TUV, and UL489A.
Mfr Part #:

MD1-B-12-450-1-A16-2-J

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse MD1-B-12-450-1-A16-2-J is a 1-pole magnetic hydraulic delay circuit breaker rated at 5A and 250V. It features a panel mount design with a rocker actuator and is approved by CCC, TUV, and UL489A.
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MD1-B-12-450-1-A16-2-J 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
SVHC Present
Voltage Rating
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MD1-B-12-450-1-A16-2-J Description

Short technical summary and product information.

The Littelfuse MD1-B-12-450-1-A16-2-J is a single-pole magnetic hydraulic delay circuit breaker rated at 5A and 250V. It utilizes a hydraulic-magnetic trip mechanism for accurate overcurrent protection with inherent time delay. The breaker is panel mounted and features a rocker actuator for manual reset. It is approved by CCC, TUV, and UL489A. The component is RoHS3 compliant, REACH unaffected, and has an MSL of 1 (unlimited). This circuit breaker is suitable for use in power distribution, industrial control, and equipment protection applications.

MD1-B-12-450-1-A16-2-J Quick Information

Product Type: Circuit Breaker
Series: MD1
Canonical Name: Littelfuse MD1-B-12-450-1-A16-2-J Magnetic Hydraulic Delay Circuit Breaker, 5A 250V, 1 Pole, Panel Mount
Subcategory: Hydraulic-Magnetic Circuit Breaker

MD1-B-12-450-1-A16-2-J Compliance

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

MD1-B-12-450-1-A16-2-J Features

  • Rated 5A at 250V AC/DC.
  • Single-pole magnetic hydraulic delay.
  • Panel mount with rocker actuator.
  • Approved by CCC, TUV, UL489A.
  • RoHS3 compliant and REACH unaffected.

MD1-B-12-450-1-A16-2-J Applications

  • Ideal for power distribution panels.
  • Used in industrial control systems.
  • Protects equipment from overcurrent.
  • Suitable for inrush current applications.
  • Integrates into panel mount setups.

MD1-B-12-450-1-A16-2-J FAQs

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

250V

What is the current rating?

5A

What is the breaker type?

Magnetic (Hydraulic Delay)

How many poles does it have?

1 pole

What is the mounting type?

Panel mount

What actuator type does it have?

Rocker

What approvals does it have?

CCC, TUV, UL489A

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