Mfr Part #:

MM1-B-32-445-1-1BB-B-C

This Littelfuse MM1-B-32-445-1-1BB-B-C is a 1-pole magnetic (hydraulic delay) circuit breaker rated for 4.5A at 250V, featuring a lever actuator and panel mount design.

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MM1-B-32-445-1-1BB-B-C Description

Short technical summary and product information.

The Littelfuse MM1-B-32-445-1-1BB-B-C is a single-pole magnetic (hydraulic delay) circuit breaker designed for overcurrent protection in electrical circuits. It is rated for a continuous current of 4.5A at a maximum voltage of 250V. The hydraulic delay mechanism provides time-delayed trip characteristics, making it suitable for handling inrush currents without nuisance tripping.

The breaker features a lever actuator for manual on/off control and reset. It is designed for panel mount installation, allowing easy integration into control panels and equipment enclosures. The device carries approvals from CCC, CSA, and UL1077, indicating compliance with recognized safety standards.

This circuit breaker is ideal for industrial, commercial, and automotive applications requiring reliable overcurrent protection with a manual reset capability. Its compact 1-pole design minimizes space requirements in multi-pole configurations.

MM1-B-32-445-1-1BB-B-C Quick Information

Product Type: Circuit Breaker

Series: MM1-B

Canonical Name: Magnetic (Hydraulic Delay) Circuit Breaker, 1 Pole, 4.5A, 250V, Panel Mount, Lever Actuator

Subcategory: Magnetic (Hydraulic Delay) Circuit Breaker

MM1-B-32-445-1-1BB-B-C Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

MM1-B-32-445-1-1BB-B-C Features

Single-pole magnetic hydraulic delay circuit breaker.
Rated for 4.5A continuous current at 250V.
Lever actuator for manual on/off and reset.
Panel mount design for easy installation.
Approved by CCC, CSA, and UL1077.

MM1-B-32-445-1-1BB-B-C Applications

Ideal for overcurrent protection in control panels.
Used in industrial machinery and equipment.
Suitable for motor and transformer circuits.
Applicable in commercial power distribution.

MM1-B-32-445-1-1BB-B-C FAQs

7 frequently asked questions generated from this part’s specifications.

What is the voltage rating of the MM1-B-32-445-1-1BB-B-C?

250V.

What is the current rating?

4.5A.

What type of circuit breaker is this?

Magnetic (Hydraulic Delay).

How many poles does it have?

1 pole.

What actuator type does it use?

Lever.

What mounting type is supported?

Panel mount.

What approvals does this breaker have?

CCC, CSA, UL1077.

MM1-B-32-445-1-1BB-B-C Alternate Parts

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The Littelfuse Inc. MM1-B-22-445-1-1HA-B-C is a circuit breaker with a 4.5A current rating and 250V voltage rating. It features a panel mount design and magnetic (hydraulic delay) operation.

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