MF1-B-34-440-3-JC2-1-C The Littelfuse Inc. MF1-B-34-440-3-JC2-1-C is a single-pole, panel-mount circuit breaker. It features a magnetic hydraulic delay with a 4A current rating and 250V voltage rating.
Mfr Part #:

MF1-B-34-440-3-JC2-1-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. MF1-B-34-440-3-JC2-1-C is a single-pole, panel-mount circuit breaker. It features a magnetic hydraulic delay with a 4A current rating and 250V voltage rating.
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MF1-B-34-440-3-JC2-1-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
Illumination Voltage (Nominal)
Mounting Type
Number of Poles
Voltage Rating

MF1-B-34-440-3-JC2-1-C Description

Short technical summary and product information.

This Littelfuse Inc. MF1-B-34-440-3-JC2-1-C is a magnetic hydraulic delay circuit breaker designed for panel mounting. It offers a current rating of 4A and a voltage rating of 250V.

 

The breaker is a single-pole unit with a rocker actuator type and green illumination, operating at a nominal voltage of 9-16V. It is approved by CCC, CSA, and UL1077.

 

Compliance information indicates RoHS3 compliance, MSL 1, and REACH unaffected status, though these are currently unverified. The part is also identified by the DK Part Number 432-MF1-B-34-440-3-JC2-1-C-ND.

MF1-B-34-440-3-JC2-1-C Quick Information

Product Type: Circuit Breaker
Series: MF1-B
Canonical Name: Littelfuse Inc. MF1-B-34-440-3-JC2-1-C Circuit Breaker
Subcategory: Circuit Breaker

MF1-B-34-440-3-JC2-1-C Compliance

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

MF1-B-34-440-3-JC2-1-C Features

  • 4A current rating, 250V voltage rating.
  • Magnetic hydraulic delay breaker type.
  • Panel mount with rocker actuator.
  • Green illumination for 9-16V operation.
  • CCC, CSA, UL1077 approved.

MF1-B-34-440-3-JC2-1-C Applications

  • Ideal for power distribution circuits.
  • Suitable for control panel integration.
  • Used in equipment requiring overcurrent protection.
  • Applicable in systems with 250V AC/DC.

MF1-B-34-440-3-JC2-1-C FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the MF1-B-34-440-3-JC2-1-C circuit breaker?

The current rating is 4A.

What is the voltage rating for this circuit breaker?

The voltage rating is 250V.

How is the MF1-B-34-440-3-JC2-1-C circuit breaker mounted?

It is designed for panel mounting.

What type of breaker mechanism does the MF1-B-34-440-3-JC2-1-C use?

It uses a Magnetic (Hydraulic Delay) type.

How many poles does this circuit breaker have?

It has 1 pole.

Does the MF1-B-34-440-3-JC2-1-C have illumination?

Yes, it has green illumination for 9 ~ 16V.

Is the MF1-B-34-440-3-JC2-1-C RoHS compliant?

The status is RoHS3 Compliant.

MF1-B-34-440-3-JC2-1-C Alternate Parts

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MF1-B-30-440-3-JC2-7-C
MF1-B-30-440-3-JC2-7-C
Littelfuse Inc.
The Littelfuse Inc. MF1-B-30-440-3-JC2-7-C is a panel mount circuit breaker. It features a 4A current rating and a 250V voltage rating.
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