MF1-B-12-250-1-DF4-B-D The Littelfuse Inc. MF1-B-12-250-1-DF4-B-D is a 1-pole magnetic (hydraulic delay) circuit breaker. It features a 500mA current rating and a 250V voltage rating.
Mfr Part #:

MF1-B-12-250-1-DF4-B-D

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. MF1-B-12-250-1-DF4-B-D is a 1-pole magnetic (hydraulic delay) circuit breaker. It features a 500mA current rating and a 250V voltage rating.
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MF1-B-12-250-1-DF4-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

MF1-B-12-250-1-DF4-B-D Description

Short technical summary and product information.

This Littelfuse Inc. circuit breaker, part number MF1-B-12-250-1-DF4-B-D, is designed for circuit protection applications. It operates with a 500mA current rating and a 250V voltage rating.

 

The breaker type is magnetic with a hydraulic delay, and it has a single pole configuration. The actuator type is a rocker, and it includes red illumination.

 

Mounting is achieved via a panel mount configuration. Approval agencies include CCC, CSA, UL, and VDE, indicating broad compliance for various applications.

 

Environmental compliance includes RoHS3 compliance, an MSL of 1, and REACH unaffected status. These features make it suitable for a range of electronic designs.

MF1-B-12-250-1-DF4-B-D Quick Information

Product Type: Circuit Breaker
Series: MF1-B
Canonical Name: Littelfuse Inc. MF1-B-12-250-1-DF4-B-D Magnetic (Hydraulic Delay) Circuit Breaker
Subcategory: Magnetic (Hydraulic Delay)

MF1-B-12-250-1-DF4-B-D Compliance

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

MF1-B-12-250-1-DF4-B-D Features

  • 500mA current rating for protection.
  • 250V voltage rating for circuits.
  • Magnetic breaker with hydraulic delay.
  • Panel mount design for easy installation.
  • Rocker actuator with red illumination.

MF1-B-12-250-1-DF4-B-D Applications

  • Used for general circuit protection.
  • Suitable for panel-mounted systems.
  • Incorporated in control systems.
  • Applied in power distribution units.

MF1-B-12-250-1-DF4-B-D FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the MF1-B-12-250-1-DF4-B-D circuit breaker?

The current rating is 500mA.

What is the voltage rating for this circuit breaker?

The voltage rating is 250V.

What type of breaker is the MF1-B-12-250-1-DF4-B-D?

It is a magnetic breaker with a hydraulic delay.

How many poles does this circuit breaker have?

It has 1 pole.

What is the mounting type for this Littelfuse circuit breaker?

The mounting type is Panel Mount.

Is the MF1-B-12-250-1-DF4-B-D RoHS compliant?

Yes, it is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for this part?

The MSL is 1 Unlimited.

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