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MD1-B-34-490-1-A46-2-C The Littelfuse Inc. MD1-B-34-490-1-A46-2-C is a panel mount circuit breaker. It features a magnetic hydraulic delay mechanism with a 9A current rating and 250V voltage rating.
Mfr Part #:

MD1-B-34-490-1-A46-2-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. MD1-B-34-490-1-A46-2-C is a panel mount circuit breaker. It features a magnetic hydraulic delay mechanism with a 9A current rating and 250V voltage rating.
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MD1-B-34-490-1-A46-2-C 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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MD1-B-34-490-1-A46-2-C Description

Short technical summary and product information.

This Littelfuse Inc. circuit breaker, part number MD1-B-34-490-1-A46-2-C, is designed for panel mounting. It operates as a magnetic hydraulic delay breaker, offering a current rating of 9A and a voltage rating of 250V.

 

The breaker is a single-pole unit with a rocker actuator and no illumination. It is approved by CCC, CSA, and UL1077 agencies. The component is RoHS3 compliant and has a Moisture Sensitivity Level (MSL) of 1 Unlimited. Its REACH status is unaffected.

 

This circuit breaker is suitable for applications requiring reliable overcurrent protection with a specific delay characteristic. The panel mount design facilitates integration into various electrical enclosures and control panels.

MD1-B-34-490-1-A46-2-C Quick Information

Product Type: Circuit Breaker
Series: MD1
Canonical Name: Littelfuse Inc. MD1-B-34-490-1-A46-2-C Magnetic Hydraulic Delay Circuit Breaker
Subcategory: Magnetic Hydraulic Delay

MD1-B-34-490-1-A46-2-C Compliance

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

MD1-B-34-490-1-A46-2-C Features

  • Panel mount magnetic hydraulic delay circuit breaker.
  • Rated for 9A current and 250V voltage.
  • Single pole with rocker actuator.
  • CCC, CSA, UL1077 approved.
  • RoHS3 compliant with MSL 1.

MD1-B-34-490-1-A46-2-C Applications

  • Ideal for overcurrent protection in industrial equipment.
  • Used in power distribution and control panels.
  • Suitable for applications requiring hydraulic delay.
  • Panel mount integration in OEM systems.

MD1-B-34-490-1-A46-2-C FAQs

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

250V.

What is the mounting type?

Panel mount.

What type of circuit breaker is this?

Magnetic (Hydraulic Delay).

How many poles does this breaker have?

1.

What type of actuator does it use?

Rocker.

What are the agency approvals?

CCC, CSA, UL1077.

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The Littelfuse Inc. MD1-B-14-490-1-A47-2-M is a single-pole, magnetic hydraulic delay circuit breaker. It features a panel mount design and a rocker actuator.
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The Littelfuse MA1-B-34-490-3-A32-2-C is a 1-pole magnetic (hydraulic delay) circuit breaker rated for 9A at 250VAC. It features a rocker actuator and is designed for panel mount installation.
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MD1-B-34-490-1-A16-2-C
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This Littelfuse circuit breaker is a single-pole, magnetic hydraulic delay type rated at 9A and 250V. It features a rocker actuator and panel mount design.
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