Omron E2A3 DATASHEET
Long Distance Cylindrical Proximity Sensor
E2A3
Extra long distance for
increased protection and
sensing performance
• triple distance proximity sensors for flush mounting requirements.
• designed and tested for extra long life.
Ordering Information
DC 3-wire Models
Size Typ e
M8 Shielded 3.0mm
M12 Shielded 6.0mm
M18 Shielded 11.0mm
M30 Shielded 20.0mm
Note:Material specifications for stainless steel housing case: 1.4305 (W.-No.), SUS303 (AISI), 2346 (SS).
Sensing
distance
Connection
Pre-wired
M12
connector
M8
connector
(3-pin)
Pre-wired
M12
connector
Pre-wired
M12
connector
Pre-wired
M12
connector
Body
material
Stainless steel
(See note.)
Brass
Brass
Brass
Thread
length
27 (40) mm
27 (44) mm
27 (40) mm
34 (50) mm
34 (49) mm
39 (60) mm
39 (54) mm
44 (65) mm
44 (59) mm
Output Operation mode: NO Operation mode: NC
PNP E2A3-S08KS03-WP-B1 2M E2A3-S08KS03-WP-B2 2M
NPN E2A3-S08KS03-WP-C1 2M E2A3-S08KS03-WP-C2 2M
PNP E2A3-S08KS03-M1-B1 E2A3-S08KS03-M1-B2
NPN E2A3-S08KS03-M1-C1 E2A3-S08KS03-M1-C2
PNP E2A3-S08KS03-M5-B1 E2A3-S08KS03-M5-B2
NPN E2A3-S08KS03-M5-C1 E2A3-S08KS03-M5-C2
PNP E2A3-M12KS06-WP-B1 2M E2A3-M12KS06-WP-B2 2M
NPN E2A3-M12KS06-WP-C1 2M E2A3-M12KS06-WP-C2 2M
PNP E2A3-M12KS06-M1-B1 E2A3-M12KS06-M1-B2
NPN E2A3-M12KS06-M1-C1 E2A3-M12KS06-M1-C2
PNP E2A3-M18KS11-WP-B1 2M E2A3-M18KS11-WP-B2 2M
NPN E2A3-M18KS11-WP-C1 2M E2A3-M18KS11-WP-C2 2M
PNP E2A3-M18KS11-M1-B1 E2A3-M18KS11-M1-B2
NPN E2A3-M18KS11-M1-C1 E2A3-M18KS11-M1-C2
PNP E2A3-M30KS20-WP-B1 2M E2A3-M30KS20-WP-B2 2M
NPN E2A3-M30KS20-WP-C1 2M E2A3-M30KS20-WP-C2 2M
PNP E2A3-M30KS20-M1-B1 E2A3-M30KS20-M1-B2
NPN E2A3-M30KS20-M1-C1 E2A3-M30KS20-M1-C2
.
E2A3
D-35E2A3
Connectivity
E2A3 Sensors are available with the following connectors and cable materials:
Pre-wired Models
Connector Models
Standard cable lengths are 2 m and 5 m.
Standard connectors: M12, M8 (3-pin) -M1, -M5
For other cable lengths, please contact your OMRON
representative.
Standard cable material: PVC (4-mm dia.) -WP
Model Number Legend
E2A@-@@@@@-@-@@-@@
2 3 4 5 6 7 8 9 10 111 12
Example: E2A3-M12KS06-M1-B1 Triple distance, M12, standard barrel, shielded, Sn = 6 mm, M12 connector, PNP-NO
1. Basic name
2. Sensing technology
3. Housing shape and material
4. Housing size
5. Barrel length
6. Shield
7. Sensing distance
E2A3-S08KS03-WP-B1 2M Triple distance, M8 stainless steel, standard barrel, shielded, Sn = 3 mm, pre-wired PVC cable,
E2A
Blank: Standard double distance
3: Triple distance
M: Cylindrical, metric threaded, brass
S: Cylindrical, metric threaded, stainless steel
08: 8 mm
12: 12 mm
18: 18 mm
30: 30 mm
K: Standard length
L: Long body
S: Shielded
N: Non-shielded
Numeral: Sensing distance: e.g., 03 = 3 mm, 11 = 11 mm
PNP-NO, cable length = 2 m
8. Kind of connection
WP: Pre-wired, PVC, 4-mm dia.
M1: M12 connector (4-pin) *
M5: M8 connector (3-pin)
9. Power source and output
B: DC, 3-wire, PNP open collector
C: DC, 3-wire, NPN open collector
10.Operation mode
1: Normally open (NO)
2: Normally closed (NC)
11.Specials (e.g., cable material, oscillating frequency)
12.Cable length
Blank: Connector Model
Numeral: Cable length
D-36 Inductive Sensors
Specifications
DC 3-wire Models
Size M8 M12 M18 M30
Typ e Shielded Shielded Shielded Shielded
E2A3-S08KS03-@@-B@
Item
Sensing distance 3 mm ± 10% 6 mm ± 10% 11 mm ± 10% 20 mm ± 10%
Ambient temp. of
Setting
distance
Differential travel 20% max. of sensing distance
Target Ferrous metal (The sensing distance decreases with non-ferrous metal.)
Standard sensing object 9 × 9 × 1 mm 18 × 18 × 1 mm 33 × 33 × 1 mm 60 × 60 × 1 mm
Response frequency (See note 1.) 700 Hz 350 Hz 250 Hz 80 Hz
Power supply voltage
(operating voltage range)
Current consumption 10 mA max.
Output type
Control output
Indicator Operation indicator (Yellow LED)
Operation mode
Protection circuits
Ambient air temperature Operating: −25°C to 70°C, Storage: −25°C to 70°C
Temperature influence
Ambient humidity Operating: 35% to 95%, Storage: 35% to 95%
Voltage influence ±1% max. of sensing distance in rated voltage range ±15%
Insulation resistance 50 MΩ min. (at 500 VDC) between current-carrying parts and case
Dielectric strength 1,000 VAC at 50/60 Hz for 1 min between current-carrying parts and case
Vibration resistance 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions
Shock resistance
Standards and listings
(See note 2.)
Connection method
Weight
(packed state)
Material
Note 1. The response frequency is an average value. Measurement conditions are as follows: standard sensing object, a distance of twice the
standard sensing object length between sensing objects, and a set distance of half the sensing distance.
2. For USA and Canada: use class 2 circuit only.
−25 to 70°C
Ambient temp. of
−10 to 60°C
Load current 200 mA max. (32 VDC max.)
Residual voltage 2 V max. (under load current of 200 mA with cable length of 2 m)
Pre-wired Models Approx. 65 g Approx. 85 g Approx. 160 g Approx. 280 g
Connector Models
Case Stainless steel Brass-nickel plated
Sensing surface PBT
Cable PVC
Clamping nut Stainless steel Brass-nickel plated
E2A3-S08KS03-@@-C@
0 to 2.1 mm 0 to 4.2 mm 0 to 7.7 mm 0 to 14 mm
0 to 2.4 mm 0 to 4.8 mm 0 to 8.8 mm 0 to 16 mm
12 to 24 VDC. Ripple (p-p): 10% max.
(10 to 32 VDC)
-B models: PNP open collector
-C models: NPN open collector
-B1/-C1 models: NO
-B2/-C2 models: NC
For details, refer to the timing charts.
Power source circuit reverse polarity protection,
Surge suppressor, Shortcircuit protection
±20% max. of sensing distance at 23°C within temperature range of −25°C to 70°C
−10% to +20% of sensing distance at 23°C within temperature range of −10°
2
500 m/s
in X, Y, and Z directions
IP67 after IEC 60529
IP69K after DIN 40050
EMC after EN60947-5-2
-WP models: Pre-wired Models (4-mm dia. PVC cable with length of 2 m)
-M1 models: M12 4-pin Connector Models
-M5 models: M8 3-pin Connector Models
M12 Connector Models:
Approx. 20 g
, 10 times each
E2A3-M12KS06-@@-B@
E2A3-M12KS06-@@-C@
Output reverse polarity protection, Power source circuit reverse polarity protection, Surge suppressor, Short-circuit protection
1,000 m/s
Approx. 35 g Approx. 70 g Approx. 200 g
2
, 10 times each in X, Y and Z directions
E2A3-M18KS11-@@-B@
E2A3-M18KS11-@@-C@
C to 60°C
E2A3-M30KS20-@@-B@
E2A3-M30KS20-@@-C@
E2A3
D-37E2A3
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