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MT1-B-34-620-1-A21-B-C The Littelfuse Inc. MT1-B-34-620-1-A21-B-C is a single-pole, magnetic hydraulic delay circuit breaker rated for 20A and 250V. It features a panel mount design.
Mfr Part #:

MT1-B-34-620-1-A21-B-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. MT1-B-34-620-1-A21-B-C is a single-pole, magnetic hydraulic delay circuit breaker rated for 20A and 250V. It features a panel mount design.
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MT1-B-34-620-1-A21-B-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
Mounting Type
Number of Poles
Voltage Rating
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MT1-B-34-620-1-A21-B-C Description

Short technical summary and product information.

This Littelfuse Inc. MT1-B-34-620-1-A21-B-C is a single-pole circuit breaker designed for panel mounting. It operates with a magnetic (hydraulic delay) mechanism, providing reliable 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 does not feature illumination.

 

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

MT1-B-34-620-1-A21-B-C Quick Information

Product Type: Circuit Breaker
Series: MT1
Canonical Name: Littelfuse Inc. MT1-B-34-620-1-A21-B-C Circuit Breaker
Subcategory: Circuit Breaker

MT1-B-34-620-1-A21-B-C Compliance

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

MT1-B-34-620-1-A21-B-C Features

  • 20A current rating for protection.
  • 250V voltage rating for power circuits.
  • Magnetic hydraulic delay breaker type.
  • Panel mount for easy installation.
  • Push-pull actuator for operation.

MT1-B-34-620-1-A21-B-C Applications

  • Ideal for industrial control panels.
  • Suitable for power distribution units.
  • Used in equipment with high inrush current.
  • Applicable in systems requiring specific delay.
  • General purpose circuit protection needs.

MT1-B-34-620-1-A21-B-C FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the MT1-B-34-620-1-A21-B-C circuit breaker?

The current rating is 20A.

What is the voltage rating for this Littelfuse circuit breaker?

The voltage rating is 250V.

What type of breaker mechanism does the MT1-B-34-620-1-A21-B-C use?

It uses a magnetic (hydraulic delay) mechanism.

How many poles does this circuit breaker have?

It has 1 pole.

What is the mounting type for this circuit breaker?

The mounting type is Panel Mount.

Is the MT1-B-34-620-1-A21-B-C RoHS compliant?

Yes, it is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for this part?

The MSL is 1 Unlimited.

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