MB1-B-30-618-1-A34-B-C The MB1-B-30-618-1-A34-B-C is a 1-pole magnetic hydraulic delay circuit breaker from Littelfuse, rated at 18A and 250V. It features a rocker actuator and panel mount design.
Mfr Part #:

MB1-B-30-618-1-A34-B-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The MB1-B-30-618-1-A34-B-C is a 1-pole magnetic hydraulic delay circuit breaker from Littelfuse, rated at 18A and 250V. It features a rocker actuator and panel mount design.
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MB1-B-30-618-1-A34-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

MB1-B-30-618-1-A34-B-C Description

Short technical summary and product information.

The Littelfuse MB1-B-30-618-1-A34-B-C is a single-pole magnetic hydraulic delay circuit breaker designed for overcurrent protection in electrical systems. This breaker is rated for 18A continuous current at 250V, providing reliable interruption of fault currents.

 

The breaker utilizes a magnetic hydraulic delay mechanism that offers time-delayed tripping characteristics, making it suitable for applications where short inrush currents must be tolerated. The rocker actuator allows for manual reset after tripping, with no illumination on the actuator.

 

This breaker features a panel mount design for easy installation into enclosures or control panels. It is approved by CCC, CSA, and UL1077, ensuring compliance with international safety standards. The compact single-pole form factor supports space-constrained applications.

MB1-B-30-618-1-A34-B-C Quick Information

Product Type: Circuit Breaker
Series: MB1-B
Canonical Name: Littelfuse MB1-B-30-618-1-A34-B-C 18A 250V 1-Pole Magnetic Hydraulic Delay Circuit Breaker
Subcategory: Magnetic Circuit Breaker

MB1-B-30-618-1-A34-B-C Compliance

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

MB1-B-30-618-1-A34-B-C Features

  • 18A rated current for overcurrent protection.
  • 250V voltage rating for AC/DC circuits.
  • 1-pole magnetic hydraulic delay breaker.
  • Panel mount rocker actuator design.
  • Approved by CCC, CSA, and UL1077.

MB1-B-30-618-1-A34-B-C Applications

  • Overcurrent protection for industrial control panels.
  • Circuit protection in power distribution equipment.
  • Used in machinery and automation systems.
  • Protection for HVAC and lighting circuits.
  • Suitable for power supply and UPS systems.

MB1-B-30-618-1-A34-B-C FAQs

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

The voltage rating is 250V.

What is the mounting type of this circuit breaker?

The mounting type is Panel Mount.

What is the current rating of this circuit breaker?

The current rating is 18A.

How many poles does this circuit breaker have?

This circuit breaker has 1 pole.

What type of actuator does this circuit breaker have?

The actuator type is Rocker.

What type of breaker is this?

This is a Magnetic (Hydraulic Delay) circuit breaker.

What approvals does this circuit breaker have?

This circuit breaker has approvals from CCC, CSA, and UL1077.

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