The Moujen MN-5110 is a top plunger push limit switch in a compact side mount body. The plunger sits on top of the switch and operates when a cam or moving part presses straight down onto it, so the force travels in line with the switch body rather than through a lever arm.

That straight line action is why a plunger is chosen over a lever. There is no arm to bend, no pivot to wear and no overhang to catch on anything, so the trip point stays exactly where it was set. Where travel is short, repeatable and comes in square from above, a plunger is both more accurate and more compact than a lever type.

The side mount housing fixes flat against a frame or bracket, which keeps the switch out of the path of the machine. At 10A 250V AC it handles direct AC control switching, and the 0.5A 125V DC rating covers PLC inputs. Oil tight and waterproof construction to IP65 means coolant, dust and splash do not reach the contacts, so it works in machine shops and production lines. UL and CE approvals cover it for export machinery.

Key Features

Top plunger push actuator for straight line, in axis operation
No lever arm to bend or pivot to wear out
Precise trip point that stays consistent over long cycle counts
Side mount body fixes flat against frames and brackets
10A 250V AC rating for direct AC control switching
0.5A 125V DC rating for PLC inputs
Fine operating speed range from 0.01mm to 50cm per second
IP65 oil tight and waterproof construction
UL Listed and CE Mark certified, made in Taiwan

Technical Specifications

Specification	Detail
Product Type	Side Mount Mini Limit Switch
Range of Product	MN Series
Model	MN-5110
Actuator	Top Plunger, Push Type
Mounting	Side Mount
AC Rating	10A 250V AC
DC Rating	0.5A 125V DC
Operating Speed	0.01mm to 50cm per second
Degree of Protection	IP65
Construction	Oil Tight and Waterproof
Certification	UL Listed, CE Mark
Brand	Moujen
Country of Origin	Taiwan
Weight	0.1kg
SKU	MN5110

Common Applications

Cam operated sequencing on machine tools, jig and fixture position confirmation, door and guard closed detection, press and slide end of travel stops, indexing table position sensing, small assembly and packaging machines, and any application where the moving part presses down squarely on the switch.

Choosing the Right Actuator

The actuator has to suit how the part arrives. A plain top plunger suits a square, direct push over short travel. If the cam slides across the head rather than pressing straight down, a roller is better, since a sliding cam wears a bare plunger and shifts the trip point: the cross roller plunger limit switch ME-8122 adds a cross mounted roller, and the roller plunger limit switch AM-1308 carries a higher 15A rating.

Where the part approaches from the side, a lever reaches out to meet it. The lever limit switch AZ-7120 is a compact side mount option, the adjustable roller lever limit switch AZ-8108 lets you set the lever length, and the adjustable rod limit switch AZ-8107 gives long reach onto irregular targets. For heavy equipment such as lifts and cranes, the big wheel limit switch AZ-5108L is IP67 rated.

Browse the full side mount limit switch range or the wider limit and micro switches category.

Why Buy From Qahraba

Qahraba supplies electrical contractors, panel builders and machine builders across the UAE and worldwide. Every limit switch we stock is genuine Moujen product with full certification. 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 for bulk pricing.

FAQ,s

What is a top plunger push limit switch?

It is a limit switch with the actuator on top of the body. A moving part presses straight down on the plunger, the plunger moves in line with the switch, and the contacts change over.

When should I use a plunger instead of a lever?

Use a plunger when the part comes in square from above over a short, repeatable travel. Use a lever when the part approaches from the side, when alignment varies, or when the switch needs to sit away from the moving part.

What does side mount mean?

The switch fixes flat against a surface on its side, so it sits tight against a frame or bracket instead of projecting into the machine’s path.

Can this switch connect directly to a PLC?

Yes. The 0.5A 125V DC rating covers standard 24V DC PLC inputs, and the 10A 250V AC rating allows direct switching of AC control circuits.

Is IP65 suitable for a machine shop?

Yes. IP65 with oil tight and waterproof construction resists dust, coolant and splash, which covers normal machine shop and production line conditions.

Will a sliding cam damage the plunger?

Over time, yes. A cam that slides across the head wears it and shifts the trip point. For sliding contact, choose a roller plunger model instead.

Top Plunger Push Side Mount Limit Switch 10A IP65 MN-5110 Moujen