The Auspicious AM-1704 is a Roller Microswitch with a roller lever actuator, used to detect a moving part and switch a circuit the moment it arrives. The roller sits at the tip of a hinged lever, so a passing cam or dog rolls across it instead of scraping, which keeps the trip point consistent over long cycle counts.

Three terminals give common, normally open and normally closed in one compact body, so the same switch provides a position signal and an interlock without a second device. At 15A on 125 or 250V AC it carries a quarter horsepower motor directly, which covers small actuators and auxiliary drives without a contactor in between. IP55 protection suits general machine and workshop conditions.

Key Features

Roller lever actuator reduces wear from sliding cams
3 terminal wiring with 1NO and 1NC from one body
15A at 125 or 250V AC
1/4 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-1704
Actuator	Roller Lever
Contact Configuration	1NO and 1NC, 3 Terminal
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-1704

Common Applications

Cam sequencing on machine tools, door and guard position detection, end of travel stops, vending and dispensing mechanisms, jig and fixture confirmation, small actuator switching without a contactor, and conveyor stop positions.

Related Micro and Limit Switches

Same 15A rating, different actuator: the roller plunger micro switch AM-1308 takes a straight push from above rather than a side sweep.

For sealed or heavier duty, the lever limit switch AZ-7120 is a side mount option, the spring limit switch AZ-8166 flexes under overrun, and the big wheel limit switch AZ-5108L is IP67 for lifts and cranes.

Browse the full 15 amp micro switch range, or see the limit and micro switches category for every actuator type 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 for bulk pricing.

FAQ,s

What is a Roller Microswitch?

A compact switch with a roller on a hinged lever. When a moving part presses the roller, the internal contacts change over and signal the controller.

Why a roller instead of a plain lever tip?

The roller turns as the cam passes, so it does not scrape. That keeps friction low and the trip point repeatable over thousands of cycles.

What do the 3 terminals do?

Common, normally open and normally closed. You wire the common plus whichever contact your circuit needs, or use both for a signal and an interlock.

Can it switch a small motor directly?

Yes, up to a quarter horsepower at 250V AC. Anything larger should run through a contactor.

Is IP55 enough for my machine?

IP55 covers dust and low pressure water, which suits most indoor workshop conditions. For coolant or washdown areas choose an IP65 or IP67 model.

Roller Microswitch 1NO 1NC 15 Amp IP55 AM-1704 Auspicious