The Auspicious AZ-7311 is a roller plunger limit switch in a side mount body. A plunger limit switch works by direct push: the moving part presses the plunger straight in along its axis, and that travel operates the contacts. There is no lever arm to swing, so the trip point is precise and repeatable, which matters when the machine has to stop at the same place every cycle.

The roller on the plunger head is what makes it practical for cam work. A bare plunger gets scraped by every pass of a cam and eventually wears or jams. The roller turns under that contact instead, keeping friction low and the trip point consistent through long cycle counts.

The side mount body lets the switch sit flat along a machine frame or guide rail with the plunger facing the direction of travel. Contacts are one normally open, one normally closed and a common terminal, so a single unit gives both a position signal and an interlock. Rated 10A at 250V AC and 0.5A at 125V DC, it switches AC control circuits directly and feeds DC inputs into a PLC. The IP65, oil tight and waterproof body suits machine tools with coolant, conveyors and wash down areas. CE marked and made in Taiwan.

Key Features

Direct push plunger action gives a precise, repeatable trip point
Roller head cuts friction and wear from sliding cams
Side mount body fits flat along frames and guide rails
1NO, 1NC and common contact from a single device
10A at 250V AC for direct control switching
0.5A at 125V DC for PLC inputs
Operating speed range from 0.01mm to 50cm per second
IP65 sealing with oil tight and waterproof construction

Technical Specifications

Specification	Detail
Product Type	Side Mount Mini Limit Switch
Range of Product	AZ Series
Model	AZ-7311
Actuator	Roller Plunger
Mounting	Side Mount
Contact Configuration	1NO, 1NC and 1 Common
AC Rating	10A at 250V AC
DC Rating	0.5A at 125V DC
Operating Speed	0.01mm to 50cm per second
Degree of Protection	IP65
Construction	Oil Tight and Waterproof
Certification	CE Mark
Brand	Auspicious
Country of Origin	Taiwan
SKU	AZ-7311

Common Applications

Cam operated sequencing on machine tools, slide and carriage end of travel stops, jig and fixture position confirmation, guard and cover interlocks, conveyor stop positions, packaging and assembly line indexing, and any repeat cycle duty where the moving part pushes straight onto the switch.

Choosing the Right Limit Switch Actuator

The actuator has to match how the moving part arrives. A plunger limit switch needs the push to come in line with the switch body. Where the part approaches from the side or at an angle, a lever reaches out to meet it: the lever limit switch AZ-7120 shares the same side mount body and 10A rating.

If the contact point shifts between cycles, 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 a push that may come from more than one direction, the cross roller plunger limit switch ME-8122 accepts angled approach, and where an overrun could snap a rigid actuator the spring limit switch AZ-8166 simply flexes.

For higher current, the roller plunger limit switch AM-1308 carries 15A from a top roller plunger. On heavy plant such as lifts and cranes, the big wheel limit switch AZ-5108L and the 10A adjustable roller lever limit switch AZ-5108 are the robust options.

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 Auspicious product. 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 plunger limit switch?

It is a limit switch operated by direct push. The moving part presses the plunger straight in rather than swinging a lever, so the switch trips at a precise and repeatable point.

When should I use a plunger instead of a lever?

Use a plunger when the moving part travels straight at the switch and accuracy matters. Use a lever when the part approaches from the side, arrives at a varying point, or sits too far away for direct contact.

Why does the plunger have a roller on it?

To handle sliding contact. A cam passing across a bare plunger scrapes it and eventually shifts the trip point or jams it. The roller turns instead, so wear stays low over long cycle counts.

What does 1NO 1NC with a common contact mean?

The switch has one normally open and one normally closed contact sharing a common terminal. Pressing the plunger closes the NO and opens the NC, giving a position signal and an interlock from one unit.

Can it 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 it suitable for coolant and wash down areas?

Yes. The IP65 body is oil tight and waterproof, so it holds up around machine tool coolant, conveyors and wash down environments.

Roller Plunger Limit Switch IP65 1NO 1NC 10A AZ-7311 Auspicious