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MU1-B-20-450-1-C21-B-E The Littelfuse MU1-B-20-450-1-C21-B-E is a single-pole, panel mount circuit breaker. It features a magnetic hydraulic delay mechanism and a push-to-reset actuator.
Mfr Part #:

MU1-B-20-450-1-C21-B-E

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse MU1-B-20-450-1-C21-B-E is a single-pole, panel mount circuit breaker. It features a magnetic hydraulic delay mechanism and a push-to-reset actuator.
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MU1-B-20-450-1-C21-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
SVHC Present
Voltage Rating
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MU1-B-20-450-1-C21-B-E Description

Short technical summary and product information.

This Littelfuse MU1-B-20-450-1-C21-B-E circuit breaker is designed for panel mounting and offers a current rating of 5A with a voltage rating of 250V. It operates as a single-pole breaker with a magnetic (hydraulic delay) type and a convenient push-to-reset actuator.

 

Key electrical specifications include a 5A current rating and a 250V voltage rating, making it suitable for various protection applications. The breaker type is magnetic with a hydraulic delay, providing specific trip characteristics. It is designed for panel mounting, ensuring easy integration into control panels and equipment.

 

Compliance information indicates RoHS3 compliance, MSL 1, and REACH unaffected status. Approval agencies include CCC, CSA, TUV, and UL, signifying adherence to international safety standards. The illumination is listed as none, and the actuator type is push to reset.

MU1-B-20-450-1-C21-B-E Quick Information

Product Type: Circuit Breaker
Series: MU1
Canonical Name: Littelfuse Inc. MU1-B-20-450-1-C21-B-E Magnetic (Hydraulic Delay) Circuit Breaker
Subcategory: Magnetic (Hydraulic Delay)

MU1-B-20-450-1-C21-B-E Compliance

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

MU1-B-20-450-1-C21-B-E Features

  • 5A current rating for protection.
  • 250V voltage rating for versatility.
  • Magnetic hydraulic delay breaker type.
  • Panel mount design for easy integration.
  • Push-to-reset actuator for operation.

MU1-B-20-450-1-C21-B-E Applications

  • Ideal for power distribution circuits.
  • Used in control panel protection.
  • Suitable for equipment safety applications.
  • Provides overcurrent protection.

MU1-B-20-450-1-C21-B-E 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?

5A.

How many poles does it have?

1 pole.

What type of actuator does it use?

Push to Reset actuator.

What is the mounting type?

Panel mount.

What is the breaker type?

Magnetic (Hydraulic Delay) breker.

What approvals does it have?

CCC, CSA, TUV, UL.

MU1-B-20-450-1-C21-B-E Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.
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MU1-B-34-450-2-C21-B-E
MU1-B-34-450-2-C21-B-E
Littelfuse Inc.
The Littelfuse Inc. MU1-B-34-450-2-C21-B-E is a single-pole, panel mount circuit breaker. It features a magnetic hydraulic delay with a push-to-reset actuator.
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