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MF1-B-12-620-1-FB6-B-J The Littelfuse Inc. MF1-B-12-620-1-FB6-B-J is a magnetic hydraulic delay circuit breaker. It features a 20A current rating and 250V voltage rating.
Mfr Part #:

MF1-B-12-620-1-FB6-B-J

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. MF1-B-12-620-1-FB6-B-J is a magnetic hydraulic delay circuit breaker. It features a 20A current rating and 250V voltage rating.
Stock on Request

MF1-B-12-620-1-FB6-B-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
Illumination Voltage (Nominal)
Mounting Type
Number of Poles
Voltage Rating
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MF1-B-12-620-1-FB6-B-J Description

Short technical summary and product information.

This Littelfuse Inc. circuit breaker, part number MF1-B-12-620-1-FB6-B-J, is designed for circuit protection applications. It operates with a 20A current rating and a voltage rating of 250V.

 

The breaker type is magnetic with a hydraulic delay, offering reliable performance. It is a single-pole unit suitable for panel mounting. The actuator type is a rocker, and it includes red illumination with a nominal voltage of 9-16V.

 

Compliance agencies include CCC, TUV, and UL489A. The RoHS status is RoHS3 Compliant, and the Moisture Sensitivity Level (MSL) is 1 Unlimited. REACH status is unaffected.

MF1-B-12-620-1-FB6-B-J Quick Information

Product Type: Circuit Breaker
Series: MF1
Canonical Name: Littelfuse Inc. MF1-B-12-620-1-FB6-B-J Magnetic Hydraulic Delay Circuit Breaker
Subcategory: Circuit Breaker

MF1-B-12-620-1-FB6-B-J Compliance

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

MF1-B-12-620-1-FB6-B-J Features

  • 20A current rating for protection.
  • 250V voltage rating.
  • Magnetic hydraulic delay breaker type.
  • Panel mount design.
  • RoHS3 compliant.

MF1-B-12-620-1-FB6-B-J Applications

  • Provides overcurrent protection for industrial control panels.
  • Suitable for branch circuit protection in power distribution.
  • Ideal for protecting lighting and HVAC equipment circuits.
  • Red illumination enables visual status monitoring.

MF1-B-12-620-1-FB6-B-J FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the MF1-B-12-620-1-FB6-B-J circuit breaker?

The current rating is 20A.

What is the voltage rating for this circuit breaker?

The voltage rating is 250V.

What type of breaker is the MF1-B-12-620-1-FB6-B-J?

It is a Magnetic (Hydraulic Delay) breaker type.

How many poles does this circuit breaker have?

This is a 1-pole circuit breaker.

What is the mounting type for this circuit breaker?

The mounting type is Panel Mount.

Is the MF1-B-12-620-1-FB6-B-J 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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