Mfr Part #:

MD1-B-30-618-1-A36-2-C

Magnetic hydraulic delay circuit breaker rated 18A at 250V AC. Single pole with rocker actuator and panel mount.

Stock on Request

MD1-B-30-618-1-A36-2-C Description

Short technical summary and product information.

This Littelfuse MD1-B series circuit breaker is a single-pole magnetic hydraulic delay type designed for overcurrent protection. It is rated for 18A continuous current at 250V AC, making it suitable for branch circuit protection in distribution panels and equipment. The hydraulic delay mechanism provides time-delay tripping to tolerate momentary inrush currents.

The breaker features a rocker actuator for manual on/off operation and is non-illuminated. It is designed for panel mount installation, offering a compact footprint for control panels and power distribution units. This part carries a 1-pole configuration, breaking only one line conductor.

MD1-B-30-618-1-A36-2-C Quick Information

Product Type: Circuit Breaker

Series: MD1

Canonical Name: Littelfuse MD1-B Series 1-Pole 18A 250V AC Magnetic Hydraulic Delay Circuit Breaker

Subcategory: Magnetic (Hydraulic Delay) Circuit Breaker

MD1-B-30-618-1-A36-2-C Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

MD1-B-30-618-1-A36-2-C Features

Rated current 18A for reliable operation.
Voltage rating 250V AC suitable for mains.
Single-pole design for simple installation.
Magnetic hydraulic delay for time-delay tripping.
Panel mount with rocker actuator for easy operation.

MD1-B-30-618-1-A36-2-C Applications

Provides overcurrent protection in panel-mounted applications.
Used for branch circuit protection in control panels.
Suitable for 18A electrical load circuit protection.
Magnetic hydraulic delay handles transient surge currents.
Rocker actuator enables easy manual reset operation.

MD1-B-30-618-1-A36-2-C FAQs

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

What is the current rating of this circuit breaker?

18A.

What is the voltage rating of this circuit breaker?

250V AC.

How many poles does this circuit breaker have?

1 pole.

What type of breaker is this?

Magnetic (Hydraulic Delay) type.

What is the actuator type?

Rocker actuator.

Is this circuit breaker illuminated?

No, it is non-illuminated.

What is the mounting style of this breaker?

Panel mount.

MD1-B-30-618-1-A36-2-C Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.

View All Alternate Parts

ME1-B-32-618-1-A16-2-C

Littelfuse Inc.

This Littelfuse ME1-B-32-618-1-A16-2-C is a 1-pole magnetic hydraulic circuit breaker rated for 18A at 250V. It features a rocker actuator and panel mount design.

View Part

MA1-B-30-618-1-A14-B-C