IFM IER/IFR/IGR/IIR/IEW/IFW/IGW/IIW Series Inductive Proximity Sensor Switches

IFM IER/IFR/IGR/IIR Series Inductive Proximity Sensor

Sensor, Inductive Proximity Sensor Switch, Proximity Sensor SwitchIFM

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2025/7/4 Update

Metal forming applications
— Cylindrical proximity switch M8, M12, M18, M30. Specially designed and tested for a longer service life.

IFM IER/IFR/IGR/IIR Series Inductive Proximity Sensor

Technical Features

The stainless steel sensing face and housing of the proximity switch can withstand damage caused by physical impact during workpiece loading in manufacturing cells.

High-temperature resistant, weld-slag resistant coating prevents weld spatter from adhering to the proximity switch.

2-wire DC proximity switch with programmable PNP or NPN output.

Flexible wiring options directly replace 3-wire PNP or 3-wire NPN proximity switches.

Products + Accessories Selection:

Dimensions (mm)	Sensing range	No. of wires	Output function	Supply voltage (V DC)	Switching frequency (Hz)	Max. load current (mA)	Electrical connection	Order No.
Ⓐ Using pins 1 and 4 • Direct replacement for 3-wire PNP sensors
M8 / L = 45	2 mm, Flush	2	PNP/NPN, N.O.	10…36	150	100	M12 0.3 m pigtail	IER203
M12 / L = 40	4 mm, Flush	2	PNP/NPN, N.O.	10…36	75	100	M12 0.3 m pigtail	IFR203
M18 / L = 40	6 mm, Flush	2	PNP/NPN, N.O.	10…36	50	100	M12 0.3 m pigtail	IGR203
M30 / L = 40	12 mm, Flush	2	PNP/NPN, N.O.	10…36	25	100	M12 0.3 m pigtail	IIR203
Ⓑ Using pins 3 and 4 • Direct replacement for 3-wire NPN sensors
M8 / L = 45	2 mm, Flush	2	PNP/NPN, N.O.	10…36	150	100	M12 0.3 m pigtail	IER206
M12 / L = 40	4 mm, Flush	2	PNP/NPN, N.O.	10…36	75	100	M12 0.3 m pigtail	IFR206
M18 / L = 40	6 mm, Flush	2	PNP/NPN, N.O.	10…36	50	100	M12 0.3 m pigtail	IGR206
M30 / L = 40	12 mm, Flush	2	PNP/NPN, N.O.	10…36	25	100	M12 0.3 m pigtail	IIR206

Optional accessories

Description	Order No.
L-bracket, for 8 mm proximity switch	E10734
L-bracket, for 12 mm proximity switch	E10735
L-bracket, for 18 mm proximity switch	E10736
L-bracket, for 30 mm proximity switch	E10737

Cable Connecter

Description	Order No.
M12 Micro DC (4-pin) 2 m, PUR	EVW001
M12 Micro DC (4-pin) 5 m, PUR	EVW002
M12 Micro DC (4-pin) 10 m, PUR	EVW003
M12 Micro DC (4-pin) 2 m, PUR	EVW004
M12 Micro DC (4-pin) 5 m, PUR	EVW005
M12 Micro DC (4-pin) 10 m, PUR	EVW006

ifm cable connectors are specially designed and tested for metal forming applications. The cable material is high-temperature resistant, and the connecting nut has a weld-slag resistant coating.

Specifications:

Protection rating: IP67
Operating temperature: 0…85 °C
Leakage current: < 0.8 mA; Models IER203, IER206: < 0.6 mA
Housing material:
- Housing: High-grade stainless steel, weld-slag resistant coating
- Sensing face: High-grade stainless steel, weld-slag resistant coating
- Connector: PA
- Locking nut: High-grade stainless steel, weld-slag resistant coating

Specially designed and tested for a longer service life

The proximity switch is struck by a 1 kg impact hammer 2 times per second. This represents the force of a larger workpiece being loaded in a manufacturing cell. ifm's proximity switch can withstand 500,000 impacts, whereas a proximity switch with a plastic sensing face fails after 32,000 impacts.

Comparison of sensing ranges with non flush proximity switches 5

Benefits introduce In Detail

Withstands damage caused by physical impact in manufacturing cells

ifm’s metal-face proximity switches are specially designed and tested to reliably detect positions in harsh welding and metal stamping applications. The stainless steel sensing face and housing can withstand damage caused by physical impact during workpiece loading in manufacturing cells. The high-temperature, weld-slag resistant coating prevents weld spatter from adhering to the proximity switch, thus eliminating the need for abrasive cleaning techniques.

Direct replacement for 3-wire proximity switches

ifm has designed proximity switches with flexible solutions for customers. These 2-wire proximity switches can directly replace 3-wire proximity switches