The Moujen ME-8112 is a compact mini limit switch 5A unit with a roller plunger push actuator. A cam or moving part presses straight down onto the roller, the plunger travels, and the contacts change over to signal the controller.

The roller is what keeps it accurate over time. A sliding cam wears down a plain plunger head, which shifts the trip point and eventually jams it. The roller turns instead, so friction stays low and the switch keeps tripping at the same position after thousands of cycles.

The ME series body is dust proof, oil tight and water resistant to IP65, with stainless steel internals. At 5A on 250V AC and 0.4A on 115V DC it suits control circuits and PLC inputs rather than direct motor switching. UL and CE approvals cover it for export machinery.

Key Features

Roller plunger reduces wear from sliding cams
Consistent trip point over long cycle counts
Compact ME series body for tight machine spaces
5A at 250V AC and 0.4A at 115V DC resistive ratings
Operating speed range from 0.5mm to 50m per second
IP65 dust proof, oil tight and water resistant build
Stainless steel internal parts resist corrosion
UL Listed and CE Mark certified, made in Taiwan

Technical Specifications

Specification	Detail
Product Type	5A Mini Limit Switch
Range of Product	ME Series
Model	ME-8112
Actuator	Roller Plunger, Push Type
AC Rating	5A at 250V AC resistive
DC Rating	0.4A at 115V DC resistive
Operating Speed	0.5mm to 50m per second
Degree of Protection	IP65
Construction	Dust Proof, Oil Tight, Water Resistant, Stainless Steel Essentials
Certification	UL Listed, CE Mark
Brand	Moujen
Country of Origin	Taiwan
Weight	0.2kg
SKU	ME8112

Common Applications

Cam sequencing on machine tools, door and guard position detection, end of travel stops on slides and carriages, jig and fixture confirmation, packaging and assembly line positions, and PLC input signalling where a compact switch has to fit a tight space.

Related Options

If the moving part arrives at an angle rather than straight down, the cross roller plunger version ME-8122 accepts approach from more than one direction. Where the target sits away from the switch body, the adjustable roller lever AZ-8108 and the adjustable rod AZ-8107 reach out to meet it, both at the same 5A IP65 rating.

For heavier duty, step up to the 10A adjustable roller lever AZ-5108.

See the full 5 amp mini limit switch range, or browse limit and micro switches for every actuator type and rating we stock.

Why Buy From Qahraba

Qahraba supplies electrical contractors, panel builders and machine builders across the UAE and worldwide. Local UAE orders ship within 1 to 2 working days, free above AED 250, or collect free from our Dubai store. Call or WhatsApp +971 52 913 9543 to check stock or request bulk pricing.

FAQ,s

What is a roller plunger mini limit switch used for?

It detects when a moving part reaches a set position. The part presses the roller, the plunger moves, and the contacts change over to tell the machine to stop or move to the next step.

Why a roller instead of a plain plunger?

A roller turns rather than scraping, so a sliding cam does not wear the head down. That keeps the trip point consistent over thousands of cycles.

Can the ME-8112 switch a motor directly?

No. At 5A it is built for control circuits and PLC inputs. For direct motor switching choose a 10A or 15A limit switch instead.

What does IP65 mean here?

The body is fully dust tight and resists low pressure water jets, which suits workshop, machine shop and washdown environments.

Is it interchangeable with Auspicious switches?

The ME series and AZ series are built to similar dimensions but not guaranteed identical. Check the catalog drawing or send us your existing part number before ordering a replacement.

Roller Plunger Mini Limit Switch 5A IP65 ME-8112 Moujen