The IFM IES221 IEB3003BBNKG/V4A/AS is a compact inductive proximity sensor designed for reliable non-contact detection of metallic objects in industrial, mobile, cooling and lubricating applications. It features a 3 mm sensing range, NPN normally-closed output, 10–30 V DC operation, 1500 Hz switching frequency, flush-mountable M8 × 1 stainless-steel housing and M8 A-coded connector with gold-plated contacts. Its increased sensing range and high protection rating make it suitable for demanding industrial automation applications.
Explore performance details, construction highlights, applications, and technical information in one clear overview.
The IFM IES221 IEB3003BBNKG/V4A/AS is an inductive proximity sensor engineered for reliable and repeatable detection of metallic objects without physical contact. It is designed for industrial, mobile, cooling and lubricating applications, as well as industrial applications and factory automation.
The sensor uses inductive sensing technology to detect metallic targets without mechanical contact. This makes it suitable for monitoring machine components, fixtures, workpieces and moving metallic parts during automated processes.
The IES221 provides a 3 mm sensing range, with a real sensing range of 3 ± 10% mm and an operating distance of 0–2.43 mm. It also provides an increased sensing range for dependable detection in industrial machinery.
IFM IES221 inductive sensor
Model: IEB3003BBNKG/V4A/AS
3 mm sensing range
Real sensing range: 3 ± 10% mm
Operating distance: 0–2.43 mm
Increased sensing range
DC NPN electrical design
Normally-closed output
10–30 V DC operating voltage
1500 Hz switching frequency
100 mA permanent switching current
M8 × 1 threaded construction
30 mm overall length
Flush-mountable design
Stainless-steel 1.4404 / 316L housing
M8 A-coded connector
Gold-plated connector contacts
Four yellow switching-status LEDs
IP65, IP66, IP67, IP68 and IP69K protection with correctly installed IFM socket
-40 °C to +85 °C ambient temperature
Reverse-polarity protection
Short-circuit protection
Overload protection
Suitable for industrial applications
Suitable for mobile applications
Suitable for cooling and lubricating applications
Suitable for factory automation
The IES221 operates using an inductive proximity sensing principle. When a suitable metallic target enters the sensing zone, the sensor detects the target and switches its NPN normally-closed output.
The switching signal can be connected to compatible PLCs, industrial controllers and automation equipment for machine position detection, component monitoring, object presence detection and automated process control.
The IES221 provides a 3 mm sensing range and 1500 Hz switching frequency, supporting repetitive metal detection in automated machinery. Its operating distance is specified as 0–2.43 mm.
The documented correction factors are 1 for steel, 0.7 for stainless steel, 0.4 for brass, 0.4 for aluminium and 0.3 for copper. These values should be considered when designing applications involving different metallic target materials.
The IES221 uses a stainless-steel 1.4404 / 316L housing with an M8 × 1 threaded body and 30 mm overall length. It is designed for flush mounting, making it suitable for compact machine structures and fixtures.
The sensor uses an M8 A-coded connector with gold-plated contacts. Four yellow LEDs arranged at 90° provide switching-status indication for convenient installation, commissioning and maintenance.
Machine Position Detection
The IES221 can detect metallic machine components, fixtures and moving parts to provide reliable position feedback.
Metal Component Detection
It can detect the presence or absence of metallic workpieces during automated manufacturing and assembly processes.
Mobile Equipment
The sensor is suitable for specified mobile applications requiring reliable inductive detection.
Cooling and Lubricating Applications
The IES221 can be used in suitable cooling and lubrication environments where dependable non-contact metal detection is required.
Factory Automation
The sensor can be integrated into automated machinery alongside PLCs, controllers, drives and other industrial sensors.
The IES221 combines a 3 mm sensing range, increased sensing range and 1500 Hz switching frequency for reliable repetitive metal detection.
Its -40 °C to +85 °C ambient temperature range and IP65/IP66/IP67/IP68/IP69K protection ratings support operation in demanding industrial environments. The technical documentation also specifies resistance to vibration, shock, continuous shock, rapid temperature changes and salt spray.
The IES221 can be incorporated into Industrial Automation UAE systems requiring reliable inductive proximity detection.
It can operate alongside Industrial Automation Components UAE, PLCs, control panels, actuators, drives and other Industrial Sensors.
For businesses looking for an Industrial Sensors Supplier UAE, Proximity Sensors Supplier UAE or Sensor Supplier UAE, the IES221 provides a compact and dependable sensing solution for industrial machinery and factory automation.
| Specification | Details |
|---|---|
| Product Code | IES221 |
| Manufacturer | IFM electronic |
| Model / Part Number | IEB3003BBNKG/V4A/AS |
| Product Type | Inductive Sensor |
| Sensor Type | Inductive Proximity Sensor |
| Electrical Design | DC NPN |
| Output Function | Normally Closed (NC) |
| Operating Voltage | 10–30 V DC |
| Current Consumption | < 20 mA |
| Protection Class | III |
| Reverse Polarity Protection | Yes |
| Short-Circuit Protection | Yes |
| Overload Protection | Yes |
| Maximum Voltage Drop | 2.5 V |
| Permanent Current Rating | 100 mA |
| Switching Frequency | 1500 Hz |
| Sensing Range | 3 mm |
| Real Sensing Range (Sr) | 3 ± 10% mm |
| Operating Distance | 0–2.43 mm |
| Increased Sensing Range | Yes |
| Correction Factor – Steel | 1 |
| Correction Factor – Stainless Steel | 0.7 |
| Correction Factor – Brass | 0.4 |
| Correction Factor – Aluminium | 0.4 |
| Correction Factor – Copper | 0.3 |
| Hysteresis | 1–15% of Sr |
| Switch-Point Drift | -10 to +10% of Sr |
| Housing Type | Threaded |
| Thread | M8 × 1 |
| Overall Length | 30 mm |
| Mounting | Flush mountable |
| Housing Material | Stainless steel 1.4404 / 316L |
| Sensing Face Material | LCP, white |
| LED Window Material | PEI |
| Lock Nut Material | Stainless steel 1.4404 / 316L |
| Connection | 1 × M8 connector |
| Connector Coding | A-coded |
| Connector Contacts | Gold-plated |
| Switching Status Indication | 4 × 90° yellow LED |
| Protection Rating | IP65, IP66, IP67, IP68, IP69K* |
| Ambient Temperature | -40 °C to +85 °C |
| Vibration Resistance | EN 60068-2-6 Fc |
| Shock Resistance | EN 60068-2-27 Ea |
| Continuous Shock Resistance | EN 60068-2-27 |
| Fast Temperature Change Resistance | EN 60068-2-14 Na |
| Salt Spray Test | EN 60068-2-52 Kb, Severity Level 5 |
| EMC | EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-6, EN 55011 Class B |
| MTTF | Approx. 1440 years |
| Embedded Software | Yes |
| UL Approval | Yes |
| UL Ambient Temperature | -25 °C to +80 °C |
| UL Enclosure Type | Type 1 |
| UL Approval Number | A017 |
| UL File Number | E174191 |
| Tightening Torque | A = 5 mm: 2 Nm; B: 5 Nm |
| Weight | Approx. 15.2 g |
| Accessories Included | 2 lock nuts |
| Pack Quantity | 1 piece |
| Typical Applications | Industrial applications, mobile applications, cooling and lubricating applications, machine position detection, metal detection and factory automation |
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