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MU2-B-34-490-1-C21-B-D The Littelfuse Inc. MU2-B-34-490-1-C21-B-D is a 2-pole circuit breaker designed for panel mounting. It features a magnetic hydraulic delay mechanism and a push-to-reset actuator.
Mfr Part #:

MU2-B-34-490-1-C21-B-D

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. MU2-B-34-490-1-C21-B-D is a 2-pole circuit breaker designed for panel mounting. It features a magnetic hydraulic delay mechanism and a push-to-reset actuator.
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MU2-B-34-490-1-C21-B-D Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Actuator Type
Approval Agency
Breaker Type
Current Rating (Amps)
Illumination
Mounting Type
Number of Poles
Voltage Rating
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MU2-B-34-490-1-C21-B-D Description

Short technical summary and product information.

This Littelfuse Inc. MU2-B-34-490-1-C21-B-D is a circuit breaker with a current rating of 9A and a voltage rating of 250V AC. It is designed for panel mounting and features a magnetic (hydraulic delay) type mechanism.

 

The breaker has two poles and a push-to-reset actuator. It is approved by CCC, CSA, UL, and VDE agencies. The component is specified as RoHS3 Compliant, with an MSL of 1 Unlimited, and REACH Unaffected status.

 

This device is suitable for applications requiring reliable circuit protection with a specific trip characteristic provided by its hydraulic delay mechanism. Its panel mount design ensures easy integration into control panels and equipment.

MU2-B-34-490-1-C21-B-D Quick Information

Product Type: Circuit Breaker
Series: M
Canonical Name: Littelfuse Inc. MU2-B-34-490-1-C21-B-D Circuit Breaker
Subcategory: Magnetic (Hydraulic Delay) Circuit Breaker

MU2-B-34-490-1-C21-B-D Compliance

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

MU2-B-34-490-1-C21-B-D Features

  • 9A current rating for protection.
  • 250V AC voltage rating.
  • Magnetic hydraulic delay mechanism.
  • Panel mount design.
  • Push to reset actuator.

MU2-B-34-490-1-C21-B-D Applications

  • Used in industrial control panels.
  • Ideal for motor protection circuits.
  • Suitable for power distribution systems.
  • Applicable in HVAC equipment protection.

MU2-B-34-490-1-C21-B-D FAQs

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

250V

What is the packaging type?

Bulk

What is the current rating?

9A

What type of circuit breaker is this?

Magnetic (Hydraulic Delay)

How many poles does this breaker have?

2

What type of actuator does it have?

Push to Reset

What is the mounting type?

Panel Mount

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