Omron Photoelectric E3Z Sensor Programmable Logic Controller
The Omron E3Z Series is a flagship line of compact photoelectric sensors trusted worldwide for their exceptional reliability, precision, and versatility in diverse industrial environments. Designed with rugged plastic housings and superior sensing technology, the E3Z series is ideal for detecting a wide range of targets — from shiny objects to transparent films — even in demanding conditions.
Categories:
Omron Photoelectric Sensor- Multiple Sensing Types:
- Through-beam (up to 30 m)
- Retro-reflective (including models for transparent objects)
- Diffuse-reflective
- BGS (Background Suppression)
- Ultra-Compact Design: Slim rectangular housing (10.8 x 20 x 31 mm) for tight space installation
- Excellent Environmental Resistance:
- IP67 & IP69K protection
- High resistance to water, oil, and dust
- Ambient light immunity for stable performance
- DC Models: 12–24V DC, available in NPN or PNP output types (NO/NC)
- Bright LED Indicators: Easy status monitoring for power and output
- Connector Options:
- Pre-wired cable
- M8 or M12 quick-disconnect connectors
| Specification | Description | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Sensing method | Through-beam | Retro-reflective with MSR function |
Diffuse-reflective | (Narrow-beam Models) | |||||
| Model | NPN output | Pre-wired | E3Z-T61 | E3Z-T62 | E3Z-T61A | E3Z-R61 | E3Z-D61 | E3Z-D62 | E3Z-L61 |
| Connector (M8) | E3Z-T66 | E3Z-T67 | E3Z-T66A | E3Z-R66 | E3Z-D66 | E3Z-D67 | E3Z-L66 | ||
| PNP output | Pre-wired | E3Z-T81 | E3Z-T82 | E3Z-T81A | E3Z-R81 | E3Z-D81 | E3Z-D82 | E3Z-L81 | |
| Connector (M8) | E3Z-T86 | E3Z-T87 | E3Z-T86A | E3Z-R86 | E3Z-D86 | E3Z-D87 | E3Z-L86 | ||
| Sensing distance | 15 m | 30 m | 10 m | 4 m (100 mm) *1 (when using E39-R1S) 3 m (100 mm) *1 (when using E39-R1) |
100 mm (white paper: 100 × 100 mm) |
1 m (white paper: 300 × 300 mm) |
90 + 30 mm (white paper, 100 × 100 mm) |
||
| Spot diameter (reference value) |
— | (2.5 dia. and sensing distance of 90 mm) |
|||||||
| Standard sensing object | Opaque: 12 mm dia. min. | Opaque: 75 mm dia. min. |
— | ||||||
| Minimum detectable object (reference value) |
— | 0.1 mm (copper wire) |
|||||||
| Differential travel | — | 20% max. of setting distance |
Refer to Engineering data on Catalog. |
||||||
| Directional angle | Both emitter and receiver: 3 to 15° |
2 to 10° | — | ||||||
| Light source (wavelength) | Infrared LED (870 nm) |
Red LED (660 nm) |
Red LED (660 nm) |
Infrared LED (870 nm) |
Red LED (650 nm) |
||||
| Current consumption | 35 mA max. (Emitter: 15 mA max., Receiver: 20 mA max.) | 30 mA max. | |||||||
| Protection circuits | Reversed power supply polarity protection, Output short-circuit protection, and Reversed output polarity protection |
Reversed power supply polarity protection, Output short-circuit protection, Mutual interference prevention, and Reversed output polarity protection |
|||||||
| Response time | Operate or reset: 1 ms max. |
Operate or reset: 2 ms max. |
Operate or reset: 1 ms max. |
||||||
| Degree of protection | IEC, IP67 | ||||||||
| Connection method | Pre-wired cable (standard length: 2 m and 0.5 m), Connector (M8) | ||||||||
| Weight (packed state) |
Pre-wired cable (2 m) |
Approx. 120 g | Approx. 65 g | ||||||
| Connector | Approx. 30 g | Approx. 20 g | |||||||
| Material | Case | PBT (polybutylene terephthalate) | |||||||
| Lens | Modified polyarylate | Methacrylic resin | Modified polyarylate | ||||||
| MTTFd (Year) | 754 | 1,012 | 1,012 | 2,165 | |||||
| Function | Specification | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sensing method | Through-beam | Retro-reflective | Diffuse-reflective | ||||||||||||||
| Model | NPN output | Pre-wired Models | E3Z-T61K | E3Z-R61K | E3Z-D61K | E3Z-D62K | |||||||||||
| M8 Pre-wired connector | E3Z-T61K-M3J | E3Z-R61K-M3J | E3Z-D61K-M3J | E3Z-D62K-M3J | |||||||||||||
| PNP output | Pre-wired Models | E3Z-T81K | E3Z-R81K | E3Z-D81K | E3Z-D82K | ||||||||||||
| M8 Pre-wired connector | E3Z-T81K-M3J | E3Z-R81K-M3J | E3Z-D81K-M3J | E3Z-D82K-M3J | |||||||||||||
| Sensing distance | 15 m |
3 m (150 mm)* (E39-R1S) 2 m (100 mm)* (E39-R1) |
100 mm (white paper 100×100 mm) |
1 m (white paper 300×300 mm) |
|||||||||||||
| Standard sensing object | Opaque: 12-mm dia. min. | Opaque: 75-mm dia. min. | --- | ||||||||||||||
| Differential travel | --- | 20% max. of setting distance | |||||||||||||||
| Directional angle | Emitter/Receiver: 3 to 15° | 2 to 10° | --- | ||||||||||||||
| Light source (wavelength) | Infrared LED (870 nm) | Red LED (660 nm) | Infrared LED (860 nm) | ||||||||||||||
| Current consumption | 35 mA max. (Emitter: 15 mA, Receiver: 20 mA) |
30 mA max. | |||||||||||||||
| Protection circuits | Reverse polarity, Output short, Reverse output protection | Reverse polarity, Output short, Reverse output protection, Mutual interference prevention | |||||||||||||||
| Response time | Operate or reset: 1 ms max. | ||||||||||||||||
| Degree of protection |
IP67 (IEC); Oil resistant: IP67 (in-house oilproof) Excludes cables and connectors |
||||||||||||||||
| Connection method | Pre-wired cable (2 m), M8 Pre-wired Connector | ||||||||||||||||
| Weight (packed) | Pre-wired cable (2 m) | Approx. 120 g | Approx. 65 g | ||||||||||||||
| M8 Connector (4 pins) | Approx. 50 g | Approx. 30 g | |||||||||||||||
| Material | Case | PBT (Polybutylene Terephthalate) | |||||||||||||||
| Lens | Modified polyarylate | Methacrylic resin | Modified polyarylate | ||||||||||||||
| MTTFd (Years) | 494 | 636 | 636 | ||||||||||||||
Sensors
| Sensing
method |
Appearance | Connection
method |
Sensing
distance |
Model | ||
|---|---|---|---|---|---|---|
| NPN output | PNP output | |||||
| Through-
beam (Emitter + Receiver) *3 |
 |
Pre-wired
(2 m) |
15 m
(Infrared light) |
E3Z-T61 2M *4 *5
Emitter E3Z-T61-L 2M Receiver E3Z-T61-D 2M |
E3Z-T81 2M *4 *5
Emitter E3Z-T81-L 2M Receiver E3Z-T81-D 2M |
|
| Standard M8
connector |
E3Z-T66
Emitter E3Z-T66-L Receiver E3Z-T66-D |
E3Z-T86
Emitter E3Z-T86-L Receiver E3Z-T86-D |
||||
| Pre-wired
(2 m) |
10 m
(Red light) |
E3Z-T61A 2M *4
Emitter E3Z-T61-A-L 2M Receiver E3Z-T61-A-D 2M |
E3Z-T81A 2M *4M
Emitter E3Z-T81-A-L 2M Receiver E3Z-T81-A-D 2M |
|||
| Standard M8
connector |
E3Z-T66A
Emitter E3Z-T66-A-L Receiver E3Z-T66-A-D |
E3Z-T86A
Emitter E3Z-T86-A-L Receiver E3Z-T86-A-D |
||||
| Pre-wired
(2 m) |
30 m
(Infrared light) |
E3Z-T62 2M *4
Emitter E3Z-T62-L 2M Receiver E3Z-T62-D 2M |
E3Z-T82 2M
Emitter E3Z-T82-L 2M Receiver E3Z-T82-D 2M |
|||
| Standard M8
connector |
E3Z-T67
Emitter E3Z-T67-L Receiver E3Z-T67-D |
E3Z-T87
Emitter E3Z-T87-L Receiver E3Z-T87-D |
||||
| Retro-
reflective with MSR function |
 |
Pre-wired
(2 m) |
4 m
(100 mm) *2 (Red light) |
E3Z-R61 2M *4 *5 | E3Z-R81 2M *4 *5 | |
| Standard M8
connector |
E3Z-R66 | E3Z-R86 | ||||
| Diffuse-
reflective |
 |
Pre-wired
(2 m) |
5 to 100 mm
(wide view) (Infrared light) |
E3Z-D61 2M *4 | E3Z-D81 2M *4 *5 | |
| Standard M8
connector |
E3Z-D66 | E3Z-D86 | ||||
| Pre-wired
(2 m) |
1 m
(Infrared light) (Red light) |
E3Z-D62 2M *4 *5 | E3Z-D82 2M *4 *5 | |||
| Standard M8
connector |
E3Z-D67 | E3Z-D87 | ||||
| Pre-wired
(2 m) |
90±30 mm
(narrow beam) (Red light) |
E3Z-L61 2M *4 *5 | E3Z-L81 2M *4 *5 | |||
| Standard M8
connector |
E3Z-L66 | E3Z-L86 | ||||
| Distance-
settable |
|
Pre-wired
(2 m) |
20 to 40 mm
(BGS min setting) (Red light) 20 to 200 mm (BGS max setting) (Red light) 40 min. Incident threshold (FGS min setting) (Red light) 200 min. Incident threshold (FGS max setting) (Red light) |
E3Z-LS61 2M *4 | E3Z-LS81 2M *4 | |
| Standard M8
connector |
E3Z-LS66 | E3Z-LS86 | ||||
| Pre-wired
(2 m) |
2 to 20 mm
(BGS min setting) (Red light) 2 to 80 mm (BGS max setting) (Red light) |
E3Z-LS63 2M | E3Z-LS83 2M *5 | |||
| Standard M8
connector |
E3Z-LS68 | E3Z-LS88 | ||||
| Slit-type
Through- beam |
 |
1 axis | Pre-wired
(2 m) |
25 mm
(Infrared light) |
E3Z-G61 2M *4 *5 | E3Z-G81 2M *4 *5 |
| 2
axes |
Pre-wired
(2 m) |
E3Z-G62 2M *4 | E3Z-G82 2M *4 | |||
| 1 axis | Pre-wired
M8 connector |
E3Z-G61-M3J | E3Z-G81-M3J | |||
| 2
axes |
E3Z-G62-M3J | E3Z-G82-M3J | ||||
| Limited-
reflective for transparent glasses |
 |
Pre-wired
(2 m) |
30±20 mm
(Red light) |
E3Z-L63 2M | E3Z-L83 2M | |
| Standard M8
connector |
E3Z-L68 | E3Z-L88 | ||||
| Retro-
reflective without MSR function for clear, plastic bottles |
|
Pre-wired
(2 m) |
500 mm
(80 mm) *2 (Red light) |
E3Z-B61 2M | E3Z-B81 2M *4 | |
| Standard M8
connector |
E3Z-B66 | E3Z-B86 | ||||
| Pre-wired
(2 m) |
2 m
(500 mm) *2 (Red light) |
E3Z-B62 2M *4 | E3Z-B82 2M *4 | |||
| Standard M8
connector |
E3Z-B67 | E3Z-B87 | ||||
Oil-resistive Sensors
| Sensing
method |
Appearance | Connection
method |
Sensing
distance |
Model | |
|---|---|---|---|---|---|
| NPN output | PNP output | ||||
| Through-
beam (Emitter + Receiver) *3 |
|
Pre-wired
(2 m) |
15 m
(Infrared light) |
E3Z-T61K 2M *4
Emitter E3Z-T61K-L 2M Receiver E3Z-T61K-D 2M |
E3Z-T81K 2M *4
Emitter E3Z-T81K-L 2M Receiver E3Z-T81K-D 2M |
| Pre-wired M8
connector |
E3Z-T61K-M3J 0.3M
Emitter E3Z-T61K-L-M3J 2M Receiver E3Z-T61K-D-M3J 2M |
E3Z-T81K-M3J 0.3M
Emitter E3Z-T81K-L-M3J 2M Receiver E3Z-T81K-D-M3J 2M |
|||
| Retro-
reflective with MSR function |
|
Pre-wired
(2 m) |
3 m
(150 mm) (Red light) *2 |
E3Z-R61K 2M *4 | E3Z-R81K 2M |
| Pre-wired M8
connector |
E3Z-R61K-M3J 0.3M | E3Z-R81K-M3J 0.3M | |||
| Diffuse-
reflective |
|
Pre-wired
(2 m) |
5 to 100 mm
(wide view) (Infrared light) |
E3Z-D61K 2M *4 | E3Z-D81K 2M |
| Pre-wired M8
connector |
E3Z-D61K-M3J 0.3M | E3Z-D81K-M3J 0.3M | |||
| Pre-wired
(2 m) |
1 m
(Infrared light) |
E3Z-D62K 2M *4 | E3Z-D82K 2M | ||
| Pre-wired M8
connector |
E3Z-D62K-M3J 0.3M | E3Z-D82K-M3J 0.3M | |||
Slit
| Slit width | Sensing distance | Minimum detectable object
(Reference value) |
Model | Contents | |
|---|---|---|---|---|---|
| E3Z-T[][] | E3Z-T[][]A | ||||
| 0.5-mm dia. | 50 mm | 35 mm | 0.2-mm dia. | E39-S65A | One set
(contains Slits for both the Emitter and Receiver) |
| 1-mm dia. | 200 mm | 150 mm | 0.4-mm dia. | E39-S65B | |
| 2-mm dia. | 800 mm | 550 mm | 0.7-mm dia. | E39-S65C | |
| 0.5 × 10 mm | 1 m | 700 mm | 0.2-mm dia. | E39-S65D | |
| 1 × 10 mm | 2.2 m | 1.5 m | 0.5-mm dia. | E39-S65E | |
| 2 × 10 mm | 5 m | 3.5 m | 0.8-mm dia. | E39-S65F | |
Reflectors
| Name | Sensing distance (typical) * | Model | Quantity | Remarks | ||||
|---|---|---|---|---|---|---|---|---|
| E3Z-R | E3Z-
R[]K |
E3Z-
B[]1/ -B[]6 |
E3Z-
B[]2/ -B[]7 |
|||||
| Rated value
(sensing distance of 15 m) |
Reference
value (sensing distance of 10 m) |
Rated
value |
Rated
value |
Rated
value |
||||
| Reflector | 3 m (100 mm) | --- | 2 m
(100 mm) |
--- | --- | E39-R1 | 1 | Retro-
reflective models are not provided with Reflectors. The MSR function is enabled. |
| 4 m (100 mm) | --- | 3 m
(150 mm) |
500 mm
(80 mm) |
2 m
(500 mm) |
E39-R1S | 1 | ||
| --- | 5 m (100 mm) | --- | --- | --- | E39-R2 | 1 | ||
| --- | 2.5 m (100 mm) | --- | --- | --- | E39-R9 | 1 | ||
| --- | 3.5 m(100 mm) | --- | --- | --- | E39-R10 | 1 | ||
| Fog
Preventive Coating |
--- | 3 m (100 mm) | --- | 500 mm
(80 mm) |
2 m
(500 mm) |
E39-R1K | 1 | |
| Small
Reflector |
--- | 1.5 m (50 mm) | --- | --- | --- | E39-R3 | 1 | |
| Tape
Reflector |
--- | 700 mm (150 mm) | --- | --- | --- | E39-RS1 | 1 | |
| --- | 1.1 m (150 mm) | --- | --- | --- | E39-RS2 | 1 | ||
| --- | 1.4 m (150 mm) | --- | --- | --- | E39-RS3 | 1 | ||
Mutual Interference Protection Filter
| Sensing
distance |
Appearance/
Dimensions |
Model | Quantity | Remarks |
|---|---|---|---|---|
| 3 m |
 |
E39-E11 | Two sets each for
the Emitter and Receiver (total of four pieces) |
Can be used with the E3Z-T[][]A Through-beam models.
The arrow indicates the direction of polarized light. Mutual interference can be prevented by altering the direction of polarized light from or to adjacent Emitters and Receivers. |
Mounting Brackets
| Appearance | Model
(material) |
Quantity | Remarks |
|---|---|---|---|
 |
E39-L153
(SUS304) *1 |
1 | Mounting Brackets |
 |
E39-L104
(SUS304) *1 |
1 | |
 |
E39-L43
(SUS304) *2 |
1 | Horizontal Mounting Brackets |
 |
E39-L142
(SUS304) *2 |
1 | Horizontal Protective Cover Bracket |
 |
E39-L44
(SUS304) |
1 | Rear Mounting Bracket |
 |
E39-L98
(SUS304) *2 |
1 | Metal Protective Cover Bracket |
 |
E39-L150
(SUS304) |
1 | (Sensor adjuster)
Easily mounted to the aluminum frame rails of conveyors and easily adjusted. For left to right adjustment |
 |
E39-L151
(SUS304) |
1 | |
 |
E39-L144
(SUS304) *2 |
1 | Compact Protective Cover Bracket (For E3Z only) |
Sensor I/O Connectors (Sockets on One Cable End)
| Size | Cable | Appearance | Cable type | Model | ||
|---|---|---|---|---|---|---|
| M8 | Standard | Straight *2 |  |
2 m | 4-wire | XS3F-M421-402-A |
| 5 m | XS3F-M421-405-A | |||||
| L-shaped *2 *3 |  |
2 m | XS3F-M422-402-A | |||
| 5 m | XS3F-M422-405-A | |||||
| PUR (Polyurethane) cable *1 | Straight *2 | |
2 m | XS3F-M421-402-L | ||
| 5 m | XS3F-M421-405-L | |||||
| L-shaped *2 *3 | |
2 m | XS3F-M422-402-L | |||
| 5 m | XS3F-M422-405-L | |||||
| Vibration-proof robot cable | Straight *2 | |
2 m | XS3F-M421-402-R | ||
| 5 m | XS3F-M421-405-R | |||||
| L-shaped *2 *3 | |
2 m | XS3F-M422-402-R | |||
| 5 m | XS3F-M422-405-R | |||||
|
Catalog Name
|
Catalog Number[size]
|
Last Update
|
|
|---|---|---|---|
| E3Z Data Sheet | --- [3023KB] |
Apr 07, 2025 | E3Z Data Sheet |
| E3Z Operating Procedures | --- [468KB] |
Dec 01, 2021 | E3Z Operating Procedures |
Applications
- Packaging and labeling machines
- Conveyor object detection
- Transparent bottle or film detection
- Elevator and door safety systems
- Food and beverage production lines
- Pharmaceutical and electronics industries
Why Choose
- Reliable detection of difficult targets: transparent, dark, shiny, or small
- Compact and lightweight, yet extremely durable
- Industry-standard M12/M8 connectors simplify replacement and maintenance
- Global availability and Omron support make it a preferred choice for OEMs and system integrators
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