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MT1-B-14-612-2-A21-B-J Littelfuse MT1-B-14-612-2-A21-B-J is a 1-pole magnetic hydraulic delay circuit breaker rated for 12A at 250V. It features a push-pull actuator and panel mount design.
Mfr Part #:

MT1-B-14-612-2-A21-B-J

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse MT1-B-14-612-2-A21-B-J is a 1-pole magnetic hydraulic delay circuit breaker rated for 12A at 250V. It features a push-pull actuator and panel mount design.
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MT1-B-14-612-2-A21-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
Mounting Type
Number of Poles
SVHC Present
Voltage Rating
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MT1-B-14-612-2-A21-B-J Description

Short technical summary and product information.

This is a single-pole magnetic circuit breaker from Littelfuse with hydraulic delay for precise overload protection. It is rated for 12 amps continuous current at 250 volts, suitable for AC or DC applications.

 

The breaker uses a magnetic-hydraulic mechanism that provides time-delayed tripping, ideal for handling inrush currents without nuisance trips. It features a push-pull actuator for manual reset and switching.

 

Designed for panel mounting, this circuit breaker carries approvals from CCC, TUV, and UL489A. It is non-illuminated. The compact 1-pole design simplifies installation in control panels and equipment.

MT1-B-14-612-2-A21-B-J Quick Information

Product Type: Circuit Breaker
Series: MT1-B
Canonical Name: Littelfuse MT1-B Series 1-Pole 12A 250V Magnetic Hydraulic Delay Circuit Breaker
Subcategory: Magnetic Circuit Breaker

MT1-B-14-612-2-A21-B-J Compliance

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

MT1-B-14-612-2-A21-B-J Features

  • Magnetic hydraulic delay for time-delayed tripping.
  • Rated for 12A at 250V operation.
  • Single-pole design for compact installations.
  • Push-pull actuator for manual control.
  • Panel mount for easy installation.

MT1-B-14-612-2-A21-B-J Applications

  • Used in power distribution and protection panels.
  • Ideal for industrial equipment overload protection.
  • Suitable for telecommunications power systems.
  • Applied in motor control centers.

MT1-B-14-612-2-A21-B-J FAQs

7 frequently asked questions generated from this part’s specifications.
What is the voltage rating of the MT1-B-14-612-2-A21-B-J?

250V.

What is the current rating?

12A.

What is the mounting type for this circuit breaker?

Panel mount.

How many poles does this breaker have?

1 pole.

What type of actuator does it use?

Push-pull.

What approvals does this circuit breaker hold?

CCC, TUV, UL489A.

Is the breaker illuminated?

No, it is non-illuminated.

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