Ring Type Inductive Proximity Sensor, 21mm, NPN/PNP/2 Wire

SKU: SUCH-IPS-T21

$135.77

● 21mm ring type inductive proximity sensor ● High resolution, short response time ● IP67 protection rating, plug connection ● Component/metal spring/line segment inspection

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Overview
Specs
Application
FAQ
Reviews

Overview

21mm ring type proximity sensor for sale online. It is a flush inductive proximity switch, designed for detecting metal parts, such as spring screws, in automated conveyor systems. NPN/PNP/2 wire 3 output methods, direct lead wire or M12 connector wiring types, high resolution, short response time.

Feature

SUCH 21mm inductive proximity sensor offers a variety of output options to meet the needs of different industrial applications.
It supports both cable connections and miniature quick-disconnect connectors, providing flexible installation and easy maintenance. Some ring-type inductive sensor models feature adjustable sensitivity.
The ring proximity sensor includes reverse polarity protection, short-circuit protection, and overload protection, ensuring safe and stable system operation.

Dimension (Unit: mm)

Wiring Diagram

Specs

Lead wire types			Direct lead wire	M12 connector
Mounting			Flush
Output methods	DC24V	NPN	NO
			NC
			NO+NC
		PNP	NO
			NC
			NO+NC
		2 wire	NO
			NC
	AC110V	2 wire	NO
			NC
	AC230V	2 wire	NO
			NC
Operating voltage		DC24V	10-36V
		AC110V/ AC230V	AC90-250V
Output current		DC24V	100mA (2 wire), 200mA(3/4 wire)
		AC110V	500mA
		AC230V	DC 100mA/ AC 300mA
Ring Diameter			21mm
Response frequency			500Hz
Environment temperature			-20~80℃
Insulation resistance			>20MΩ
Repeated accurancy			≤5%
Leak current			≤0.4mA(DC 2wire), ≤1.6mA(AC), ≤0.05mA (DC 3/4 wire)
Shell material			ABS
Protection grade			IP67
Weight			1kg
Certificates			CE, RoHS
Warranty			12 months

Application

Automotive Manufacturing

Electronic Component Production

Machine Tool Workshop

FAQ

Q1: What size metal targets can a 21mm ring-type inductive proximity sensor detect? ❯

The 21mm inner diameter allows detection of larger metallic targets, such as pipes (≤18mm outer diameter), rods, or irregularly shaped metal parts that fit through the ring. It is suitable for detecting bulk materials or large components in heavy industry.

Q2: What is a flush ring-type inductive proximity sensor? ❯

A flush ring-type inductive proximity sensor is an inductive sensor with a circular opening that can be mounted level with the surrounding surface, including metal. Its sensing field is shielded inside the sensor body, allowing stable metal detection without interference from nearby metal objects.

Q3: What output methods are available for the 21mm ring-type proximity sensor? ❯

The 21mm ring-type inductive proximity sensor supports multiple output methods to match different power systems and control requirements. DC models operate at DC 24V and are available with PNP, NPN, or 2-wire outputs for PLC and DC control circuits. AC models are offered in 2-wire versions for AC 110V and AC 230V power supplies, allowing direct connection to AC control systems without additional power converters.

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