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MM1-B-34-620-2-2JB-B-C Littelfuse MM1-B-34-620-2-2JB-B-C is a 20A, 250V magnetic (hydraulic delay) circuit breaker with 1 pole, panel mount, and lever actuator. It is approved by CCC, CSA, and UL1077.
Mfr Part #:

MM1-B-34-620-2-2JB-B-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse MM1-B-34-620-2-2JB-B-C is a 20A, 250V magnetic (hydraulic delay) circuit breaker with 1 pole, panel mount, and lever actuator. It is approved by CCC, CSA, and UL1077.
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MM1-B-34-620-2-2JB-B-C Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Actuator Type
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Breaker Type
Current Rating
Current Rating (Amps)
Illumination
Mounting Type
Number of Poles
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MM1-B-34-620-2-2JB-B-C Description

Short technical summary and product information.

The Littelfuse MM1-B-34-620-2-2JB-B-C is a single-pole magnetic circuit breaker featuring a hydraulic delay mechanism. It is rated at 20A and 250V. The hydraulic delay provides time-delayed overcurrent protection, making it suitable for applications with inrush currents.

 

The breaker is panel mounted with a lever actuator and is not illuminated. It is certified to CCC, CSA, and UL1077 standards, indicating compliance with applicable safety regulations. The magnetic construction offers reliable operation in harsh environments.

 

This circuit breaker is designed for use in power distribution, industrial control, and equipment protection. Its compact design allows for easy integration into control panels.

MM1-B-34-620-2-2JB-B-C Quick Information

Product Type: Circuit Breaker
Canonical Name: Magnetic Circuit Breaker, 20A, 250V, 1 Pole, Panel Mount
Subcategory: Magnetic Circuit Breakers

MM1-B-34-620-2-2JB-B-C Compliance

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

MM1-B-34-620-2-2JB-B-C Features

  • Rated for 20A at 250V.
  • Magnetic hydraulic delay mechanism.
  • Single pole with panel mount.
  • Lever actuator for manual operation.
  • Approved by CCC, CSA, UL1077.

MM1-B-34-620-2-2JB-B-C Applications

  • Ideal for power distribution panels.
  • Used in industrial control equipment.
  • Suitable for branch circuit protection.
  • Applicable in motor control centers.
  • Can be used in HVAC systems.

MM1-B-34-620-2-2JB-B-C FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage of this circuit breaker?

250V.

What is the current rating of this circuit breaker?

20A.

What type of circuit breaker is this?

Magnetic (Hydraulic Delay).

How many poles does this circuit breaker have?

1 pole.

What is the mounting type of this circuit breaker?

Panel mount.

What type of actuator does this circuit breaker have?

Lever actuator.

What approvals does this circuit breaker have?

CCC, CSA, and UL1077.

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