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MU2-B-64-618-1-F21-B-E The Littelfuse MU2-B-64-618-1-F21-B-E is a 2-pole magnetic hydraulic circuit breaker with an 18A current rating and 250V voltage rating. It features push-to-reset actuation and panel mount installation.
Mfr Part #:

MU2-B-64-618-1-F21-B-E

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse MU2-B-64-618-1-F21-B-E is a 2-pole magnetic hydraulic circuit breaker with an 18A current rating and 250V voltage rating. It features push-to-reset actuation and panel mount installation.
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MU2-B-64-618-1-F21-B-E 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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MU2-B-64-618-1-F21-B-E Description

Short technical summary and product information.

The Littelfuse MU2-B-64-618-1-F21-B-E is a magnetic hydraulic circuit breaker designed for overcurrent protection. This 2-pole device is rated for 18A continuous current at 250V. The hydraulic-magnetic trip mechanism offers delayed trip characteristics, suitable for applications with moderate inrush currents. The push-to-reset actuator allows manual resetting after a fault. It is designed for panel mount installation. This circuit breaker is approved by CCC, CSA, TUV, and UL, ensuring compliance with international safety standards. The compact design and 2-pole configuration make it ideal for protecting branch circuits and equipment in industrial or commercial applications.

MU2-B-64-618-1-F21-B-E Quick Information

Product Type: Circuit Breaker
Series: MU2
Canonical Name: MU2-B-64-618-1-F21-B-E Magnetic Hydraulic Circuit Breaker, 2-Pole, 18A, 250V
Subcategory: Circuit Breakers

MU2-B-64-618-1-F21-B-E Compliance

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

MU2-B-64-618-1-F21-B-E Features

  • 18A current rating for overcurrent protection.
  • 250V voltage rating suitable for many applications.
  • 2-pole magnetic hydraulic circuit breaker.
  • Push-to-reset actuator for manual reset.
  • Panel mount design for easy installation.

MU2-B-64-618-1-F21-B-E Applications

  • Used for overcurrent protection in electrical systems.
  • Suitable for panel-mounted circuit protection.
  • Ideal for branch circuits in industrial panels.
  • Protects equipment in power distribution applications.

MU2-B-64-618-1-F21-B-E FAQs

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

250V

What is the current rating of this circuit breaker?

18A

How many poles does it have?

2

What is the mounting type?

Panel Mount

What type of actuator does it use?

Push to Reset

What approvals does this circuit breaker have?

CCC, CSA, TUV, UL

What is the breaker type?

Magnetic (Hydraulic Delay)

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