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MT1-B-14-620-1-A21-B-M The Littelfuse Inc. MT1-B-14-620-1-A21-B-M is a single-pole, magnetic hydraulic delay circuit breaker. It features a 20A current rating and a 250V voltage rating.
Mfr Part #:

MT1-B-14-620-1-A21-B-M

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. MT1-B-14-620-1-A21-B-M is a single-pole, magnetic hydraulic delay circuit breaker. It features a 20A current rating and a 250V voltage rating.
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MT1-B-14-620-1-A21-B-M 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-14-620-1-A21-B-M Description

Short technical summary and product information.

This Littelfuse Inc. MT1-B-14-620-1-A21-B-M is a single-pole circuit breaker designed for panel mounting. It operates with a magnetic hydraulic delay mechanism, providing reliable circuit protection.

 

The breaker has a current rating of 20A and a voltage rating of 250V. It is approved by CCC, CSA, and UL1077. The actuator type is push-pull, and it features no illumination.

 

This component is RoHS3 compliant and has a Moisture Sensitivity Level (MSL) of 1 Unlimited. It is suitable for applications requiring robust overcurrent protection with specific delay characteristics.

MT1-B-14-620-1-A21-B-M Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse Inc. MT1-B-14-620-1-A21-B-M Magnetic Hydraulic Delay Circuit Breaker
Subcategory: Circuit Breaker

MT1-B-14-620-1-A21-B-M Compliance

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

MT1-B-14-620-1-A21-B-M Features

  • 20A current rating for protection.
  • 250V voltage rating.
  • Magnetic hydraulic delay mechanism.
  • Panel mount design.
  • CCC, CSA, UL1077 approvals.

MT1-B-14-620-1-A21-B-M Applications

  • Used in industrial control panels for circuit protection.
  • Suitable for commercial equipment overcurrent protection.
  • Ideal for applications requiring hydraulic delay trip characteristics.
  • Can be used in power distribution units and machinery.

MT1-B-14-620-1-A21-B-M FAQs

7 frequently asked questions generated from this part’s specifications.
What is the voltage rating of the Littelfuse MT1-B-14-620-1-A21-B-M circuit breaker?

250V.

What is the current rating of this circuit breaker?

20A.

What type of breaker is the MT1-B-14-620-1-A21-B-M?

Magnetic (Hydraulic Delay).

How many poles does this circuit breaker have?

1 pole.

What is the actuator type of this circuit breaker?

Push-Pull.

What is the mounting type for this circuit breaker?

Panel Mount.

What approvals does the MT1-B-14-620-1-A21-B-M have?

CCC, CSA, UL1077.

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