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MM1-B-14-620-2-1BB-B-J The Littelfuse Inc. MM1-B-14-620-2-1BB-B-J is a magnetic circuit breaker with a 20A current rating and 250V AC voltage rating. It is designed for panel mounting.
Mfr Part #:

MM1-B-14-620-2-1BB-B-J

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. MM1-B-14-620-2-1BB-B-J is a magnetic circuit breaker with a 20A current rating and 250V AC voltage rating. It is designed for panel mounting.
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MM1-B-14-620-2-1BB-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
Voltage Rating
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MM1-B-14-620-2-1BB-B-J Description

Short technical summary and product information.

This Littelfuse Inc. MM1-B-14-620-2-1BB-B-J is a single-pole magnetic circuit breaker featuring a hydraulic delay mechanism. It is rated for a maximum AC voltage of 250V and a DC voltage of 80V, with a current carrying capacity of 20A. The breaker is designed for panel mounting and utilizes a lever actuator.

 

Key specifications include its magnetic breaker type, ensuring reliable protection against overcurrents. The approval agencies listed are CCC, TUV, and UL489A, indicating compliance with various international safety standards. This component is part of the Series M product line.

 

The circuit breaker is specified as RoHS3 Compliant, REACH Unaffected, and has a Moisture Sensitivity Level (MSL) of 1 Unlimited. Its bulk packaging is suitable for industrial applications. The absence of illumination simplifies its integration into control panels where visual indication is not required.

MM1-B-14-620-2-1BB-B-J Quick Information

Product Type: Circuit Breaker
Series: M
Canonical Name: Littelfuse Inc. MM1-B-14-620-2-1BB-B-J Magnetic Circuit Breaker
Subcategory: Magnetic

MM1-B-14-620-2-1BB-B-J Compliance

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

MM1-B-14-620-2-1BB-B-J Features

  • Magnetic circuit breaker with hydraulic delay.
  • Rated for 250V AC and 20A current.
  • Designed for panel mount applications.
  • Lever actuator for manual control.
  • Approved by CCC, TUV, and UL489A.

MM1-B-14-620-2-1BB-B-J Applications

  • Used for overcurrent protection.
  • Suitable for industrial control panels.
  • Integrates into power distribution systems.
  • Applicable in machinery safety circuits.

MM1-B-14-620-2-1BB-B-J FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating?

20A

What is the voltage rating?

250VAC and 80VDC

How many poles does it have?

1 pole

What type of circuit breaker is it?

Magnetic (Hydraulic Delay)

What actuator type does it use?

Lever

What is the mounting type?

Panel Mount

What agency approvals does it have?

CCC, TUV, UL489A

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