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MT1-B-34-440-1-A21-B-E The Littelfuse Inc. MT1-B-34-440-1-A21-B-E is a single-pole, magnetic hydraulic delay circuit breaker rated for 4A and 250V. It features a panel mount design.
Mfr Part #:

MT1-B-34-440-1-A21-B-E

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. MT1-B-34-440-1-A21-B-E is a single-pole, magnetic hydraulic delay circuit breaker rated for 4A and 250V. It features a panel mount design.
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MT1-B-34-440-1-A21-B-E 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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MT1-B-34-440-1-A21-B-E Description

Short technical summary and product information.

This Littelfuse Inc. MT1-B-34-440-1-A21-B-E is a single-pole circuit breaker designed for panel mounting. It utilizes a magnetic hydraulic delay mechanism for protection.

 

The breaker has a current rating of 4A and a voltage rating of 250V. It is approved by multiple agencies including CCC, CSA, TUV, and UL. The actuator type is push-pull, and it does not feature illumination.

 

Environmental compliance includes RoHS3 compliance, MSL 1, and REACH unaffected status. The part number for this component is MT1-B-34-440-1-A21-B-E.

MT1-B-34-440-1-A21-B-E Quick Information

Product Type: Circuit Breaker
Series: MT1-B
Canonical Name: Littelfuse Inc. MT1-B-34-440-1-A21-B-E Magnetic Hydraulic Delay Circuit Breaker
Subcategory: Magnetic Hydraulic Delay

MT1-B-34-440-1-A21-B-E Compliance

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

MT1-B-34-440-1-A21-B-E Features

  • Panel mount magnetic hydraulic delay circuit breaker.
  • Rated for 4A current and 250V voltage.
  • Single pole design with push-pull actuator.
  • Approved by CCC, CSA, TUV, and UL.
  • RoHS3 compliant.

MT1-B-34-440-1-A21-B-E Applications

  • Ideal for general power protection.
  • Suitable for control panel installations.
  • Used in equipment requiring 250V operation.
  • Applicable where 4A current is needed.

MT1-B-34-440-1-A21-B-E 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?

4A.

What type of circuit breaker is this?

Magnetic (Hydraulic Delay).

How many poles does it have?

1 pole.

What is the mounting type?

Panel Mount.

What approvals does it have?

CCC, CSA, TUV, UL.

What is the actuator type?

Push-Pull.

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