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MT1-B-74-420-1-A22-B-C The Littelfuse Inc. MT1-B-74-420-1-A22-B-C is a 1-pole circuit breaker designed for panel mounting. It features a magnetic hydraulic delay mechanism and a 2A current rating.
Mfr Part #:

MT1-B-74-420-1-A22-B-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. MT1-B-74-420-1-A22-B-C is a 1-pole circuit breaker designed for panel mounting. It features a magnetic hydraulic delay mechanism and a 2A current rating.
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MT1-B-74-420-1-A22-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-74-420-1-A22-B-C Description

Short technical summary and product information.

This Littelfuse Inc. MT1-B-74-420-1-A22-B-C is a single-pole circuit breaker with a magnetic hydraulic delay type. It is rated for 2A and operates at up to 250V.

 

The breaker is designed for panel mounting and features a push-pull actuator. It is approved by CCC, CSA, and UL1077.

 

Key electrical specifications include a 2A current rating and a 250V voltage rating. The breaker type is magnetic with a hydraulic delay, suitable for applications requiring specific trip characteristics. Its single-pole configuration makes it ideal for single-phase circuits.

 

The component is designed for easy integration into control panels and equipment due to its panel mount configuration. The push-pull actuator provides a clear and tactile method for operation and reset.

MT1-B-74-420-1-A22-B-C Quick Information

Product Type: Circuit Breaker
Series: MT1
Canonical Name: Littelfuse Inc. MT1-B-74-420-1-A22-B-C Magnetic Hydraulic Delay Circuit Breaker
Subcategory: Magnetic (Hydraulic Delay)

MT1-B-74-420-1-A22-B-C Compliance

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

MT1-B-74-420-1-A22-B-C Features

  • 2A current rating for circuit protection.
  • 250V voltage rating for power applications.
  • Magnetic hydraulic delay breaker type.
  • Single pole configuration.
  • Panel mount design for easy installation.

MT1-B-74-420-1-A22-B-C Applications

  • Protects control panels from overcurrent faults.
  • Integrates into industrial power distribution systems.
  • Provides circuit protection for automotive electronics.
  • Safeguards consumer appliance internal wiring.
  • Mounts securely within electrical enclosures.

MT1-B-74-420-1-A22-B-C FAQs

6 frequently asked questions generated from this part’s specifications.
What is the current rating of this circuit breaker?

2A

What is the maximum voltage rating?

250V

What type of trip mechanism does this breaker use?

Magnetic (Hydraulic Delay)

How many poles does this circuit breaker have?

1

What mounting method is required for installation?

Panel Mount

Which safety certifications apply to this component?

CCC, CSA, UL1077

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