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MT1-S-12-020-3-A21-B-J The Littelfuse Inc. MT1-S-12-020-3-A21-B-J is a single-pole, magnetic hydraulic delay circuit breaker. It features a 20mA current rating and a 250V voltage rating.
Mfr Part #:

MT1-S-12-020-3-A21-B-J

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. MT1-S-12-020-3-A21-B-J is a single-pole, magnetic hydraulic delay circuit breaker. It features a 20mA current rating and a 250V voltage rating.
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MT1-S-12-020-3-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-S-12-020-3-A21-B-J Description

Short technical summary and product information.

This Littelfuse Inc. MT1-S-12-020-3-A21-B-J is a single-pole circuit breaker designed for panel mounting. It operates with a magnetic hydraulic delay mechanism and has a current rating of 20mA and a voltage rating of 250V.

 

The breaker type is magnetic (hydraulic delay), and it features a push-pull actuator. It is approved by CCC, TUV, and UL489A agencies. The illumination is none.

 

This component is RoHS3 compliant and has an MSL rating of 1 Unlimited. It is REACH unaffected. The mounting type is panel mount.

MT1-S-12-020-3-A21-B-J Quick Information

Product Type: Circuit Breaker
Series: MT1-S
Canonical Name: Littelfuse Inc. MT1-S-12-020-3-A21-B-J Circuit Breaker

MT1-S-12-020-3-A21-B-J Compliance

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

MT1-S-12-020-3-A21-B-J Features

  • 20mA current rating
  • 250V voltage rating
  • Magnetic hydraulic delay breaker type
  • Panel mount design
  • CCC, TUV, UL489A approved

MT1-S-12-020-3-A21-B-J Applications

  • Overcurrent protection for industrial control panels
  • Power distribution in solar energy systems
  • Protection for HVAC equipment circuits
  • Panel-mounted branch circuit protection

MT1-S-12-020-3-A21-B-J FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the MT1-S-12-020-3-A21-B-J circuit breaker?

The current rating is 20mA.

What is the voltage rating for this circuit breaker?

The voltage rating is 250V.

What type of breaker is the MT1-S-12-020-3-A21-B-J?

It is a Magnetic (Hydraulic Delay) breaker type.

How many poles does this circuit breaker have?

This circuit breaker has 1 pole.

What is the mounting type for this circuit breaker?

The mounting type is Panel Mount.

Is the MT1-S-12-020-3-A21-B-J 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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