Product Introduction

S3-1370 / S3-1371 Roller Limit Switch

Name: Elevator Limit Switch
SKU: SH-01060020
Price: 2.16 USD
Availability: InStock

A roller-operated limit-switch series with a spring-return mechanism and mounting-bracket options. Choose the contact arrangement to match the elevator position-sensing or limit-control circuit.

Product Views

S3 roller limit switch contact-cover view

Product Information

Item	Specification
Series	S3-1370 / S3-1371
Actuation	Mechanical roller operation
AC rating	220 V AC, 2 A
DC rating	110 V DC, 0.3 A
Operating travel	5 ± 1 mm
Operating force	≤ 8 N
Reset	Automatic mechanical spring return

Series Contact Comparison

Select the required contact state; these are series configurations, not interchangeable contact functions.

Model	Normal contact state	State when actuated
S3-1370	1 NC — normally closed	Contact opens
S3-1371	1 NO — normally open	Contact closes

Mounting and Roller Selection

Option	Selection point
Bracket-mounted variants	Match the mounting bracket and fixing slots to the installation.
Roller versions	Match roller width and cam engagement; versions may differ.

Before Ordering

Confirm whether the circuit requires normally closed or normally open operation.
Match roller position, bracket geometry, fixing points and available operating travel.
Use the actual device marking and circuit requirements to select the voltage and load.
Confirm the bracket and accessories required for the order.
Installation and function testing should be performed by qualified elevator service personnel with the circuit safely isolated.

Frequently Asked Questions

What is the difference between S3-1370 and S3-1371?

S3-1370 has one normally closed contact that opens when actuated; S3-1371 has one normally open contact that closes when actuated.

How does the switch reset?

A mechanical spring returns the mechanism after the actuating force is removed.

Is the mounting bracket part of every order?

Confirm the required bracket and accessory configuration when ordering.

What should be checked before replacement?

Check contact state, electrical load, roller engagement, fixing geometry and operating travel. Test the installed switch using the applicable service procedure.