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MT1-B-12-440-1-B23-B-T The Littelfuse Inc. MT1-B-12-440-1-B23-B-T is a 1-pole, panel mount circuit breaker. It features a magnetic hydraulic delay with a 4A current rating and 250V voltage rating.
Mfr Part #:

MT1-B-12-440-1-B23-B-T

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. MT1-B-12-440-1-B23-B-T is a 1-pole, panel mount circuit breaker. It features a magnetic hydraulic delay with a 4A current rating and 250V voltage rating.
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MT1-B-12-440-1-B23-B-T 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-12-440-1-B23-B-T Description

Short technical summary and product information.

This Littelfuse Inc. MT1-B-12-440-1-B23-B-T is a single-pole circuit breaker designed for panel mounting. It utilizes a magnetic (hydraulic delay) mechanism for reliable protection.

 

The breaker has a current rating of 4A and a voltage rating of 250V. It is activated by a push-pull actuator and offers no illumination.

 

Key approvals include CCC and UL489A, indicating compliance with relevant safety standards. The component is RoHS3 compliant and has an MSL of 1, suitable for a wide range of environmental conditions.

MT1-B-12-440-1-B23-B-T Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse Inc. MT1-B-12-440-1-B23-B-T Circuit Breaker
Subcategory: Circuit Breaker

MT1-B-12-440-1-B23-B-T Compliance

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

MT1-B-12-440-1-B23-B-T Features

  • 4A current rating and 250V voltage rating.
  • Magnetic breaker with hydraulic delay.
  • Panel mountable with push-pull actuator.
  • RoHS3 compliant and MSL 1.

MT1-B-12-440-1-B23-B-T Applications

  • Overcurrent protection for industrial control panels.
  • Protection for power supplies and transformers.
  • Used in HVAC and refrigeration equipment.
  • Suitable for marine and RV electrical systems.

MT1-B-12-440-1-B23-B-T FAQs

6 frequently asked questions generated from this part’s specifications.
What is the current rating of the MT1-B-12-440-1-B23-B-T?

The current rating is 4A.

What is the voltage rating of this circuit breaker?

The voltage rating is 250V.

What type of breaker is the MT1-B-12-440-1-B23-B-T?

It is a magnetic hydraulic delay circuit breaker.

How many poles does this circuit breaker have?

It has 1 pole.

What is the mounting type for this part?

It is panel mount.

What actuator type does the MT1-B-12-440-1-B23-B-T use?

It uses a push-pull actuator.

MT1-B-12-440-1-B23-B-T Alternate Parts

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MT1-B-12-440-1-A23-B-T
MT1-B-12-440-1-A23-B-T
Littelfuse Inc.
Littelfuse MT1-B-12-440-1-A23-B-T is a 1-pole magnetic (hydraulic delay) circuit breaker rated at 4A and 250V with a push-pull actuator for panel mount applications.
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