The Auspicious AM-1703 is a roller lever microswitch with an extended lever arm and a roller at the tip. The extra length gives the lever more leverage, so it takes less force from the moving part to trip the switch, and the roller turns against a sliding cam instead of scraping, which keeps the trip point consistent over long cycle counts.

Contacts are NO, NC and common on a single changeover, so one switch gives both a position signal and an interlock. At 15A on 125 or 250V AC it handles far more current than a typical 5A microswitch, and the quarter horsepower rating at 250V AC means it can switch a small motor directly without a contactor. IP55 protection covers dust and low pressure water, which suits most indoor machine and workshop conditions.

For most indoor machine and panel applications, this is the practical choice: full 15A switching and a hard wearing roller tip, without paying for IP67 sealing the application does not need.

Key Features

Extended lever arm reduces the force needed to operate
Roller tip resists wear from sliding cams
NO, NC and common changeover contacts in one device
High 15A rating at both 125V and 250V AC
Quarter HP motor switching at 250V AC
Fine operating speed range from 0.01mm to 1m per second
IP55 protection against dust and low pressure water
CE marked and manufactured in Taiwan

Technical Specifications

Specification	Detail
Product Type	Micro Limit Switch
Range of Product	AM Series
Model	AM-1703
Actuator	Extended Roller Lever
Contact Configuration	NO, NC and Common
AC Rating	15A at 125V or 250V AC
Motor Rating	1/8 HP at 125V AC and 1/4 HP at 250V AC
DC Rating	1/2A at 125V DC and 1/4A at 250V DC
Operating Speed	0.01mm to 1m per second
Degree of Protection	IP55
Certification	CE Mark
Brand	Auspicious
Country of Origin	Taiwan
SKU	AM-1703

Common Applications

Cam operated sequencing on machine tools, door and guard position detection, end of travel stops on slides and presses, vending and dispensing mechanisms, jig and fixture position confirmation, and small motor switching without a contactor.

Related Models

If the cam presses straight down onto the switch rather than across a lever, the roller plunger microswitch AM-1308 shares the same 15A rating and IP55 body with a top plunger actuator.

For heavier or outdoor duty, the big wheel limit switch AZ-5108L is IP67 rated and built for lifts and cranes. Where the approach angle varies or an overrun could snap a rigid lever, the spring limit switch AZ-8166 flexes instead of breaking. For a compact side mount unit, see the lever limit switch AZ-7120.

Compare the full 15 amp micro switch range, or browse every limit switch and micro switch we stock to match an actuator, rating and IP class to your application.

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 for bulk pricing.

FAQ,s

What is a lever microswitch used for?

It detects when a moving part reaches a set position. The part pushes the lever, the internal contacts change over, and the signal tells the machine to stop, reverse or move to the next step.

What does the extended lever do?

A longer lever needs less force at the tip to operate the switch, and it reaches further, so the switch body can sit clear of the moving part.

What does NO NC and common mean?

It is a single changeover contact set. The common terminal connects to the normally closed terminal at rest and switches to the normally open terminal when the lever is pressed.

Can it switch a motor directly?

Yes, up to a quarter horsepower at 250V AC. Anything larger should run through a contactor with this switch driving the coil.

Is IP55 enough for my application?

IP55 resists dust and low pressure water, which covers most indoor machine and workshop conditions. For washdown, coolant or outdoor use choose an IP65 or IP67 model instead.

Do you supply in bulk?

Yes, we hold bulk stock for contractors and panel shops. Call +971 52 913 9543 for quantity pricing and current availability.

Roller Lever Microswitch NO NC 15 Amp AM-1703 Auspicious