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Cylindrical Inductive Proximity Sensor [Amplifier Built-in / DC 3-wire Type] GX-300

Order guide

Model No.

Model No.

DC 3-wire type (Small-diameter, shielded type)

Type Appearance
(mm in)
Sensing range (Note) Model No. Output Output operation
Max.
operation
distance
Stable
sensing
range
Non-threaded
type
0.8mm
0.031 in
0 to 0.56mm
0 to 0.022 in
GX-303S-A-N NPN open-collector
transistor
Normally open
GX-303S-B-N Normally closed
GX-303S-A-P PNP open-collector
transistor
Normally open
GX-303S-B-P Normally closed
1.2mm
0.047 in
0 to 0.84mm
0 to 0.033 in
GX-304S-A-N NPN open-collector
transistor
Normally open
GX-304S-B-N Normally closed
GX-304S-A-P PNP open-collector
transistor
Normally open
GX-304S-B-P Normally closed
1mm
0.039 in
0 to 0.7mm
0 to 0.028 in
GX-305S-A-N NPN open-collector
transistor
Normally open
GX-305S-B-N Normally closed
GX-305S-A-P PNP open-collector
transistor
Normally open
GX-305S-B-P Normally closed
Threaded
type
1.2mm
0.047 in
0 to 0.84mm
0 to 0.033 in
GX-305M-A-N NPN open-collector
transistor
Normally open
GX-305M-B-N Normally closed
GX-305M-A-P PNP open-collector
transistor
Normally open
GX-305M-B-P Normally closed
Note: The maximum operation distance stands for the maximum distance for which the sensor can detect the standard sensing object.
The stable sensing range stands for the sensing range for which the sensor can stably detect the standard sensing object even if there is an ambient temperature drift and/or supply voltage fluctuation.

DC 3-wire type (Shielded type)

Threaded type

Type Appearance
(mm in)
Sensing range (Note 1) Model No.
(Note 2)
Output Output operation
Max.
operation
distance
Stable
sensing
range
Standard
sensing
range
type
1.5mm
0.059 in
0 to 1.2mm
0 to 0.047 in
GX-308M-A-N NPN open-collector
transistor
Normally open
GX-308M-B-N Normally closed
GX-308M-A-P PNP open-collector
transistor
Normally open
GX-308M-B-P Normally closed
2mm
0.079 in
0 to 1.6mm
0 to 0.063 in
GX-312M-A-N NPN open-collector
transistor
Normally open
GX-312M-B-N Normally closed
GX-312M-A-P PNP open-collector
transistor
Normally open
GX-312M-B-P Normally closed
5mm
0.197 in
0 to 4mm
0 to 0.157 in
GX-318M-A-N NPN open-collector
transistor
Normally open
GX-318M-B-N Normally closed
GX-318M-A-P PNP open-collector
transistor
Normally open
GX-318M-B-P Normally closed
10mm
0.394 in
0 to 8mm
0 to 0.315 in
GX-330M-A-N NPN open-collector
transistor
Normally open
GX-330M-B-N Normally closed
GX-330M-A-P PNP open-collector
transistor
Normally open
GX-330M-B-P Normally closed
Long
sensing
range
type
2mm
0.079 in
0 to 1.6mm
0 to 0.063 in
GX-308MK-A-N NPN open-collector
transistor
Normally open
GX-308MK-B-N Normally closed
GX-308MK-A-P PNP open-collector
transistor
Normally open
GX-308MK-B-P Normally closed
4mm
0.157 in
0 to 3.2mm
0 to 0.126 in
GX-312MK-A-N NPN open-collector
transistor
Normally open
GX-312MK-B-N Normally closed
GX-312MK-A-P PNP open-collector
transistor
Normally open
GX-312MK-B-P Normally closed
8mm
0.315 in
0 to 6.4mm
0 to 0.252 in
GX-318MK-A-N NPN open-collector
transistor
Normally open
GX-318MK-B-N Normally closed
GX-318MK-A-P PNP open-collector
transistor
Normally open
GX-318MK-B-P Normally closed
15mm
0.591 in
0 to 12mm
0 to 0.472 in
GX-330MK-A-N NPN open-collector
transistor
Normally open
GX-330MK-B-N Normally closed
GX-330MK-A-P PNP open-collector
transistor
Normally open
GX-330MK-B-P Normally closed

Notes:

1) The maximum operation distance stands for the maximum distance for which the sensor can detect the standard sensing object.
The stable sensing range stands for the sensing range for which the sensor can stably detect the standard sensing object even if there is an ambient temperature drift and/or supply voltage fluctuation.
2) The PNP output, normally open type models [GX-3□M(K)-A-P(-□)] are compatible with IO-Link.
The PNP output, normally closed type models and all NPN output type models do not support IO-Link.

DC 3-wire type (Non-shielded type)

Threaded type

Type Appearance
(mm in)
Sensing range (Note 1) Model No.
(Note 2)
Output Output operation
Max.
operation
distance
Stable
sensing
range
Standard
sensing
range
type
2mm
0.079 in
0 to 1.6mm
0 to 0.063 in
GX-308ML-A-N NPN open-collector
transistor
Normally open
GX-308ML-B-N Normally closed
GX-308ML-A-P PNP open-collector
transistor
Normally open
GX-308ML-B-P Normally closed
5mm
0.197 in
0 to 4mm
0 to 0.157 in
GX-312ML-A-N NPN open-collector
transistor
Normally open
GX-312ML-B-N Normally closed
GX-312ML-A-P PNP open-collector
transistor
Normally open
GX-312ML-B-P Normally closed
10mm
0.394 in
0 to 8mm
0 to 0.315 in
GX-318ML-A-N NPN open-collector
transistor
Normally open
GX-318ML-B-N Normally closed
GX-318ML-A-P PNP open-collector
transistor
Normally open
GX-318ML-B-P Normally closed
18mm
0.709 in
0 to 14.4mm
0 to 0.567 in
GX-330ML-A-N NPN open-collector
transistor
Normally open
GX-330ML-B-N Normally closed
GX-330ML-A-P PNP open-collector
transistor
Normally open
GX-330ML-B-P Normally closed
Long
sensing
range
type
4mm
0.157 in
0 to 3.2mm
0 to 0.126 in
GX-308MLK-A-N NPN open-collector
transistor
Normally open
GX-308MLK-B-N Normally closed
GX-308MLK-A-P PNP open-collector
transistor
Normally open
GX-308MLK-B-P Normally closed
8mm
0.315 in
0 to 6.4mm
0 to 0.252 in
GX-312MLK-A-N NPN open-collector
transistor
Normally open
GX-312MLK-B-N Normally closed
GX-312MLK-A-P PNP open-collector
transistor
Normally open
GX-312MLK-B-P Normally closed
16mm
0.630 in
0 to 12.8mm
0 to 0.504 in
GX-318MLK-A-N NPN open-collector
transistor
Normally open
GX-318MLK-B-N Normally closed
GX-318MLK-A-P PNP open-collector
transistor
Normally open
GX-318MLK-B-P Normally closed
30mm
1.181 in
0 to 24mm
0 to 0.945 in
GX-330MLK-A-N NPN open-collector
transistor
Normally open
GX-330MLK-B-N Normally closed
GX-330MLK-A-P PNP open-collector
transistor
Normally open
GX-330MLK-B-P Normally closed

Notes :

1) The maximum operation distance stands for the maximum distance for which the sensor can detect the standard sensing object.
The stable sensing range stands for the sensing range for which the sensor can stably detect the standard sensing object even if there is an ambient temperature drift and/or supply voltage fluctuation.
2) The PNP output, normally open type models [GX-3□ML(K)-A-P(-□)] are compatible with IO-Link.
The PNP output, normally closed type models and all NPN output type models do not support IO-Link.

5 m 16.404 ft cable length type

5 m 16.404 ft cable length type (standard: 2 m 6.562 ft) is also available. When ordering this type, suffix "-C5" to the model No.
(e.g.) 5 m 16.404 ft cable length type of GX-303S-A-N is "GX-303S-A-N-C5".

Bending-resistant cable type (2 m 6.562 ft / 5 m 16.404 ft cable length)

The shielded, non-threaded type sensors (ø4 mm ø0.157 in / ø5.4 mm ø0.213 in) and threaded type sensors (M5 / M8) are available with a bending-resistant cable (cable length: 2 m 6.562 ft or 5 m 16.404 ft). (Note that the ø5.4 mm ø0.213 in size, normally closed type sensors are not available with a 5-m-long bending-resistant cable.)
When ordering bending-resistant 2 m 6.562 ft cable type, suffix "-R" to the model No. When ordering bending-resistant 5 m 16.404 ft cable type, suffix "-R5" to the model No.
(e.g.) Bending-resistant 2 m 6.562 ft cable type of GX-304S-A-N is "GX-304S-A-N-R".
(e.g.) Bending-resistant 5 m 16.404 ft cable type of GX-304S-A-N is "GX-304S-A-N-R5".

Pigtailed type

The threaded type sensors (M8 / M12 / M18 / M30) are available in the pigtailed type. (Connector: M12)
When ordering this type, suffix "-J" to the model No.
(e.g.) Pigtailed type of GX-308M-A-N is "GX-308M-A-N-J".

Please purchase mating cables separately when using pigtailed type models.


•Mating cable

Mating cable
Model No. Description
CN-24S-C2 Length: 2 m 6.562 ft AWG20 4-core cable with M12 Smartclick connector on one end
Cable outside diameter: ø6 mm ø0.236 in
CN-24S-C5 Length: 5 m 16.404 ft
Note : is a trademark of OMRON Corporation.

Connector type

The threaded type sensors (M12 / M18 / M30) are available in the connector type. When ordering this type, suffix "-Z" to the model No.
(e.g.) Connector type of GX-312M-A-N is "GX-312M-A-N-Z".

List of connection systems

Please see the list below for the model no. of each model.

>>List of connection systemsNew Window

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