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MM1-B-14-450-1-2DB-B-C Littelfuse MM1-B-14-450-1-2DB-B-C is a 5A, 250V single-pole magnetic (hydraulic delay) circuit breaker. It features panel mount and lever actuator.
Mfr Part #:

MM1-B-14-450-1-2DB-B-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse MM1-B-14-450-1-2DB-B-C is a 5A, 250V single-pole magnetic (hydraulic delay) circuit breaker. It features panel mount and lever actuator.
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MM1-B-14-450-1-2DB-B-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
Voltage Rating
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MM1-B-14-450-1-2DB-B-C Description

Short technical summary and product information.

The Littelfuse MM1-B-14-450-1-2DB-B-C is a single-pole magnetic circuit breaker with hydraulic delay, rated for 5A continuous current and 250V. It is designed for panel mount installation and features a lever actuator. The breaker type provides reliable overcurrent protection with time-delay characteristics suitable for handling inrush currents.

 

The unit carries approvals from CCC, CSA, and UL1077, indicating compliance with relevant safety standards for industrial and commercial applications. It is non-illuminated and has a compact 1-pole design, making it suitable for space-constrained panel layouts.

 

The hydraulic magnetic mechanism offers temperature-stable performance and fast response to short circuits while allowing temporary overloads. This circuit breaker is ideal for use in power distribution, control panels, and equipment requiring dependable circuit protection.

MM1-B-14-450-1-2DB-B-C Quick Information

Product Type: Circuit Breaker
Series: MM1-B
Canonical Name: Littelfuse MM1-B-14-450-1-2DB-B-C Magnetic Circuit Breaker, 5A, 250V, 1 Pole, Panel Mount
Subcategory: Magnetic Circuit Breaker

MM1-B-14-450-1-2DB-B-C Compliance

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

MM1-B-14-450-1-2DB-B-C Features

  • Rated for 5A continuous current.
  • Rated for 250V AC/DC operation.
  • Single-pole magnetic hydraulic delay design.
  • Panel mount with lever actuator.
  • Approved to CCC, CSA, UL1077.

MM1-B-14-450-1-2DB-B-C Applications

  • Provides overcurrent protection in electrical systems.
  • Suitable for panel mounting in control cabinets.
  • Designed for single-phase circuits up to 250V.
  • Used in industrial and commercial power distribution.
  • Ideal for protecting motors and transformers.

MM1-B-14-450-1-2DB-B-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 current rating of this circuit breaker?

5A.

What is the mounting type?

Panel mount.

How many poles does this circuit breaker have?

1 pole.

What type of circuit breaker is this?

Magnetic (hydraulic delay) circuit breaker.

What approvals does this circuit breaker have?

CCC, CSA, and UL1077.

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