MM1-B-20-430-1-1BB-B-E Littelfuse MM1-B-20-430-1-1BB-B-E is a 1-pole magnetic (hydraulic delay) circuit breaker rated for 3A at 250V. It features a lever actuator and is designed for panel mount installation.
Mfr Part #:

MM1-B-20-430-1-1BB-B-E

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse MM1-B-20-430-1-1BB-B-E is a 1-pole magnetic (hydraulic delay) circuit breaker rated for 3A at 250V. It features a lever actuator and is designed for panel mount installation.
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MM1-B-20-430-1-1BB-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

MM1-B-20-430-1-1BB-B-E Description

Short technical summary and product information.

The Littelfuse MM1-B-20-430-1-1BB-B-E is a single-pole magnetic circuit breaker utilizing a hydraulic delay mechanism for overcurrent protection. It is rated for a continuous current of 3A and a voltage of 250V, making it suitable for a variety of electrical systems requiring reliable circuit interruption.

 

This circuit breaker features a lever actuator for manual reset and is designed for panel mount installation. The magnetic (hydraulic delay) breaker type provides a time-delay characteristic that allows for temporary inrush currents without nuisance tripping, while still offering fast response to sustained overloads and short circuits.

 

The MM1-B series is built for durability and compliance, holding approvals from CCC, CSA, TUV, and UL agencies. It is a non-illuminated unit, suitable for applications where visual indication of the breaker state is not required.

MM1-B-20-430-1-1BB-B-E Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse MM1-B-20-430-1-1BB-B-E Magnetic (Hydraulic Delay) Circuit Breaker
Subcategory: Magnetic Circuit Breaker

MM1-B-20-430-1-1BB-B-E Compliance

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

MM1-B-20-430-1-1BB-B-E Features

  • Single-pole magnetic hydraulic delay circuit breaker.
  • Rated for 3A continuous current at 250V.
  • Lever actuator for manual reset operation.
  • Panel mount design for secure installation.
  • Approved by CCC, CSA, TUV, and UL agencies.

MM1-B-20-430-1-1BB-B-E Applications

  • Overcurrent protection for industrial control panels.
  • Circuit protection in power distribution systems.
  • Use in equipment requiring hydraulic delay characteristics.
  • Suitable for panel-mounted circuit breaker applications.

MM1-B-20-430-1-1BB-B-E FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the Littelfuse MM1-B-20-430-1-1BB-B-E?

The current rating is 3A.

What is the voltage rating of this circuit breaker?

The voltage rating is 250V.

What type of circuit breaker is the MM1-B-20-430-1-1BB-B-E?

It is a magnetic (hydraulic delay) circuit breaker.

How many poles does this circuit breaker have?

It has 1 pole.

What type of actuator does this circuit breaker use?

It uses a lever actuator.

What is the mounting type for this circuit breaker?

It is a panel mount device.

What agency approvals does the MM1-B-20-430-1-1BB-B-E hold?

It holds approvals from CCC, CSA, TUV, and UL.

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