Full‑Product Introduction for New Original IFM ISG291 Proximity Switch Sensor
1. Product Overview
2. Main Functions
- Non‑contact metal detection
It senses ferrous metal objects without mechanical touching, eliminating abrasion caused by physical contact and extending service life.
- Stable switching output
It provides a reliable switching signal to the PLC when metal targets enter the effective sensing range, which triggers subsequent mechanical‑action logic.
- Built‑in circuit protection
Reverse‑polarity protection, short‑circuit protection and overload protection prevent the sensor from damage caused by wrong wiring or sudden current surges.
- Visual status indication
An integrated bright LED indicator shows working status clearly; users can judge working conditions on‑site conveniently during equipment debugging.
- High anti‑interference performance
Internal filter components restrain electromagnetic interference from motors and frequency converters, ensuring stable operation in harsh workshop environments.
- Flexible installation selection
Threaded‑body structure allows mounting via lock nuts. Users can choose flush‑mount or non‑flush‑mount installation according to practical site requirements.
3. Technical Characteristics
| Item | Specific Parameters |
|---|---|
| Part Number | ISG291 |
| Sensor Type | Inductive proximity sensor |
| Housing Size | M18 cylindrical type |
| Rated sensing distance | 8 mm (non‑flush mounting) |
| Output Type | NPN‑NO (Normally Open) |
| Operating supply voltage | 10…30 V DC |
| Rated switching current | Maximum 200 mA |
| Housing material | Nickel‑plated brass |
| Sensing‑face material | High‑performance thermoplastic |
| Protection rating | IP67 |
| Operating temperature range | −25 °C … +70 °C |
| Switching frequency | 500 Hz |
| Connection form | 4‑pin M12 plug‑in connection |
| Compliance standards | CE, IEC60947‑5‑2, RoHS |
| Anti‑interference level | Resists EMI interference from nearby inverters |
4. Product Dimensions and Weight
- Dimension parameters
Thread diameter: M18
Overall length: 62 mm
Thread length: 36 mm
- Net weight per piece: 75 g
- Installation accessories: Two M18 lock nuts are supplied together with the sensor.
5. Ten IFM Products with Similar Functions (M18 Inductive Proximity Sensors)
- ISG290: M18 inductive sensor, NPN‑NC output with 8 mm sensing range, M12 connector for metal‑target detection.
- IGS232: M18 non‑flush PNP‑NO proximity switch with 8 mm sensing distance for conveyor‑equipment application.
- IS5001: M18 flush‑mount inductive sensor with 5 mm sensing range for narrow‑installation space.
- ISG292: M18 PNP‑NC version, nickel‑plated brass housing, IP67 rating for high‑vibration workshops.
- IGT205: High‑temperature‑resistant M18 proximity sensor that works stably up to +85 °C.
- IS7002: Extended‑range M18 sensor with 12 mm sensing distance for long‑distance metal‑object detection.
- IGS246: Stainless‑steel‑housed M18 proximity switch for damp and slightly corrosive workshop environments.
- ISG301: M18 two‑wire AC‑type proximity sensor designed for alternating‑voltage control circuits.
- IGS289: Short‑body M18 compact‑size inductive sensor with overall length only 48 mm for limited installation space.
- ISG293: ATEX‑compliant M18 proximity switch suitable for dust‑prone explosion‑proof workshops.
6. Typical Application Fields
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