Omron E2AM12KS04WPB12M Data Sheet
Cylindrical Proximity Sensor
E2A
Safe Mounting with Greater
Sensing Distance
• Ensures a sensing distance approximately 1.5 to 2
times larger than that of any conventional OMRON
Sensor.
• Problems such as the collision of workpieces are
eliminated.
• Full range of standard sizes (M8, M12, M18 and
M30; both long and short barrels)
• Modular construction simplifies customization.
<READ AND UNDERSTAND THIS CATALOG>
Please read and understand this catalog before purchasing
the products. Please consult your OMRON representative if
you have any questions or comments.
Ordering Information
Size Sensing
M8 Shielded 2.0 mm Pre-wired Stainless
Non-shielded 4.0 mm Pre-wired Stainless
distance
Connection Body
M12 connector Stainless
M8 connector (3pin)
M12 connector Stainless
M8 connector (3pin)
material
steel
steel
Brass 27 (43) PNP E2A-M08KS02-M1-B1 E2A-M08KS02-M1-B2
Stainless
steel
steel
steel
Brass 27 (43) PNP E2A-M08KN04-M1-B1 E2A-M08KN04-M1-B2
Stainless
steel
Thread length
(overall length)
27 (40) PNP E2A-S08KS02-WP-B1 2M E2A-S08KS02-WP-B2 2M
49 (62) PNP E2A-S08LS02-WP-B1 2M E2A-S08LS02-WP-B2 2M
27 (43) PNP E2A-S08KS02-M1-B1 E2A-S08KS02-M1-B2
49 (65) PNP E2A-S08LS02-M1-B1 E2A-S08LS02-M1-B2
49 (65) PNP E2A-M08LS02-M1-B1 E2A-M08LS02-M1-B2
27 (39) PNP E2A-S08KS02-M5-B1 E2A-S08KS02-M5-B2
49 (61) PNP E2A-S08LS02-M5-B1 E2A-S08LS02-M5-B2
27 (40) PNP E2A-S08KN04-WP-B1 2M E2A-S08KN04-WP-B2 2M
49 (62) PNP E2A-S08LN04-WP-B1 2M E2A-S08LN04-WP-B2 2M
27 (43) PNP E2A-S08KN04-M1-B1 E2A-S08KN04-M1-B2
49 (65) PNP E2A-S08LN04-M1-B1 E2A-S08LN04-M1-B2
49 (65) PNP E2A-M08LN04-M1-B1 E2A-M08LN04-M1-B2
27 (39) PNP E2A-S08KN04-M5-B1 E2A-S08KN04-M5-B2
49 (61) PNP E2A-S08LN04-M5-B1 E2A-S08LN04-M5-B2
Output
configuration
NPN E2A-S08KS02-WP-C1 2M E2A-S08KS02-WP-C2 2M
NPN E2A-S08LS02-WP-C1 2M E2A-S08LS02-WP-C2 2M
NPN E2A-S08KS02-M1-C1 E2A-S08KS02-M1-C2
NPN E2A-S08LS02-M1-C1 E2A-S08LS02-M1-C2
NPN E2A-M08KS02-M1-C1 E2A-M08KS02-M1-C2
NPN E2A-M08LS02-M1-C1 E2A-M08LS02-M1-C2
NPN E2A-S08KS02-M5-C1 E2A-S08KS02-M5-C2
NPN E2A-S08LS02-M5-C1 E2A-S08LS02-M5-C2
NPN E2A-S08KN04-WP-C1 2M E2A-S08KN04-WP-C2 2M
NPN E2A-S08LN04-WP-C1 2M E2A-S08LN04-WP-C2 2M
NPN E2A-S08KN04-M1-C1 E2A-S08KN04-M1-C2
NPN E2A-S08LN04-M1-C1 E2A-S08LN04-M1-C2
NPN E2A-M08KN04-M1-C1 E2A-M08KN04-M1-C2
NPN E2A-M08LN04-M1-C1 E2A-M08LN04-M1-C2
NPN E2A-S08KN04-M5-C1 E2A-S08KN04-M5-C2
NPN E2A-S08LN04-M5-C1 E2A-S08LN04-M5-C2
Operation mode NO Operation mode NC
E2A Cylindrical Proximity Sensor 1
Size Sensing
M12 Shielded 4.0 mm Pre-wired Brass 34 (50) PNP E2A-M12KS04-WP-B1 2M E2A-M12KS04-WP-B2 2M
Non-shielded 8.0 mm Pre-wired Brass 34 (50) PNP E2A-M12KN08-WP-B1 2M E2A-M12KN08-WP-B2 2M
M18 Shielded 8.0 mm Pre-wired Brass 39 (59) PNP E2A-M18KS08-WP-B1 2M E2A-M18KS08-WP-B2 2M
Non-shielded 16.0 mm Pre-wired Brass 39 (59) PNP E2A-M18KN16-WP-B1 2M E2A-M18KN16-WP-B2 2M
M30 Shielded 15.0 mm Pre-wired Brass 44 (64) PNP E2A-M30KS15-WP-B1 2M E2A-M30KS15-WP-B2 2M
Non-shielded 20.0 mm Pre-wired Brass 44 (64)
Note: M30 non-shielded Models with double sensing distance and short barrels cannot be mounted due to the necessary separation distance from
the surrounding metal. Standard sensing models are thus available.
distance
30.0 mm 66 (86) PNP E2A-M30LN30-WP-B1 2M E2A-M30LN30-WP-B2 2M
20.0 mm M12 connector Brass 44 (58)
30.0 mm 66 (80) PNP E2A-M30LN30-M1-B1 E2A-M30LN30-M1-B2
Connection Body
M12 connector Brass 34 (48) PNP E2A-M12KS04-M1-B1 E2A-M12KS04-M1-B2
M12 connector Brass 34 (48) PNP E2A-M12KN08-M1-B1 E2A-M12KN08-M1-B2
M12 connector Brass 39 (53) PNP E2A-M18KS08-M1-B1 E2A-M18KS08-M1-B2
M12 connector Brass 39 (53) PNP E2A-M18KN16-M1-B1 E2A-M18KN16-M1-B2
M12 connector Brass 44 (58) PNP E2A-M30KS15-M1-B1 E2A-M30KS15-M1-B2
material
Thread length
(overall length)
56 (72) PNP E2A-M12LS04-WP-B1 2M E2A-M12LS04-WP-B2 2M
56 (70) PNP E2A-M12LS04-M1-B1 E2A-M12LS04-M1-B2
56 (72) PNP E2A-M12LN08-WP-B1 2M E2A-M12LN08-WP-B2 2M
56 (70) PNP E2A-M12LN08-M1-B1 E2A-M12LN08-M1-B2
61 (81) PNP E2A-M18LS08-WP-B1 2M E2A-M18LS08-WP-B2 2M
61 (75) PNP E2A-M18LS08-M1-B1 E2A-M18LS08-M1-B2
61 (81) PNP E2A-M18LN16-WP-B1 2M E2A-M18LN16-WP-B2 2M
61 (75) PNP E2A-M18LN16-M1-B1 E2A-M18LN16-M1-B2
66 (86) PNP E2A-M30LS15-WP-B1 2M E2A-M30LS15-WP-B2 2M
66 (80) PNP E2A-M30LS15-M1-B1 E2A-M30LS15-M1-B2
(See note.)
(See note.)
Output
configuration
NPN E2A-M12KS04-WP-C1 2M E2A-M12KS04-WP-C2 2M
NPN E2A-M12LS04-WP-C1 2M E2A-M12LS04-WP-C2 2M
NPN E2A-M12KS04-M1-C1 E2A-M12KS04-M1-C2
NPN E2A-M12LS04-M1-C1 E2A-M12LS04-M1-C2
NPN E2A-M12KN08-WP-C1 2M E2A-M12KN08-WP-C2 2M
NPN E2A-M12LN08-WP-C1 2M E2A-M12LN08-WP-C2 2M
NPN E2A-M12KN08-M1-C1 E2A-M12KN08-M1-C2
NPN E2A-M12LN08-M1-C1 E2A-M12LN08-M1-C2
NPN E2A-M18KS08-WP-C1 2M E2A-M18KS08-WP-C2 2M
NPN E2A-M18LS08-WP-C1 2M E2A-M18LS08-WP-C2 2M
NPN E2A-M18KS08-M1-C1 E2A-M18KS08-M1-C2
NPN E2A-M18LS08-M1-C1 E2A-M18LS08-M1-C2
NPN E2A-M18KN16-WP-C1 2M E2A-M18KN16-WP-C2 2M
NPN E2A-M18LN16-WP-C1 2M E2A-M18LN16-WP-C2 2M
NPN E2A-M18KN16-M1-C1 E2A-M18KN16-M1-C2
NPN E2A-M18LN16-M1-C1 E2A-M18LN16-M1-C2
NPN E2A-M30KS15-WP-C1 2M E2A-M30KS15-WP-C2 2M
NPN E2A-M30LS15-WP-C1 2M E2A-M30LS15-WP-C2 2M
NPN E2A-M30KS15-M1-C1 E2A-M30KS15-M1-C2
NPN E2A-M30LS15-M1-C1 E2A-M30LS15-M1-C2
PNP E2A-M30KN20-WP-B1 2M E2A-M30KN20-WP-B2 2M
NPN E2A-M30KN20-WP-C1 2M E2A-M30KN20-WP-C2 2M
NPN E2A-M30LN30-WP-C1 2M E2A-M30LN30-WP-C2 2M
PNP E2A-M30KN20-M1-B1 E2A-M30KN20-M1-B2
NPN E2A-M30KN20-M1-C1 E2A-M30KN20-M1-C2
NPN E2A-M30LN30-M1-C1 E2A-M30LN30-M1-C2
Operation mode NO Operation mode NC
2 E2A Cylindrical Proximity Sensor
■ Model Number Legend
2 3 4 5 6 7 8 9 10 111 12
E2A@-@@@@@-@-@@-@@
Example: E2A-M12LS04-M1-B1 Standard, M12, long barrel, shielded, Sn=4 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
E2A-M08KN04-WP-B1 5M Standard, M8, short barrel, non-shielded, Sn=4 mm, pre-wired PVC cable, PNP-NO, cable length=5 m
8. Kind of connection
E2A
Blank: Standard double 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. 02=2 mm, 16=16 mm
WP: Pre-wired, PVC
M1: M12 connector (4-pole)
M3: M8 connector (4-pole)
M5: M8 connector (3-pole)
9. Power source and output
B: DC, 3-wire, PNP open collector
C: DC, 3-wire, NPN open collector
D: DC, 2-wire
E: DC, 3-wire, NPN voltage output
F: DC, 3-wire, PNP voltage output
10.Operation mode
1: Normally open (NO)
2: Normally closed (NC)
11.Specials (e.g., cable material, oscillating frequency)
12.Cable length
Blank: Connector type
Numeral: Cable type
E2A Cylindrical Proximity Sensor 3
Specifications
■ DC 3-wire Models
Size M8 M12
Type Shielded Non-shielded Shielded Non-shielded
E2A-M08@S02-M1-B1
E2A-M08@S02-M1-B2
E2A-M08@S02-M1-C1
E2A-M08@S02-M1-C2
E2A-S08@S02-@@-B1
E2A-S08@S02-@@-B2
Item
Sensing distance 2 mm ± 10% 4 mm ± 10% 4 mm ± 10% 8 mm ± 10%
Setting distance 0 to 1.6 mm 0 to 3.2 mm 0 to 3.2 mm 0 to 6.4 mm
Differential travel 10% max. of sensing distance
Target Ferrous metal (The sensing distance decreases with non-ferrous metal.)
Standard target (mild steel ST37) 8×8×1 mm 12×12×1 mm 12×12×1 mm 24×24×1 mm
Response frequency (See note 1.) 1,500 Hz 1,000 Hz 1,000 Hz 800 Hz
Power supply voltage
(operating voltage range)
Current consumption (DC 3-wire) 10 mA max.
Output type -B models: PNP open collector
Control
output
Indicator Operation indicator (Yellow LED)
Operation mode
(with sensing object approaching)
Protection circuit Power source circuit reverse polarity protection,
Ambient air temperature Operating: −40°C to 70°C, Storage:
Temperature in
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 carry parts and case
Dielectric strength 1,000 VAC at 50/60 Hz for 1 min between current carry 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
Standard and listings (See note 3.) IEC60529: IP67, Degree of protection
Connection method -WP models: Pre-wired models (Standard length: 2 m)
Weight
(packaged)
Material Case Stainless steel or brass-nickel plated Brass-nickel plated
Note 1. The response frequency is an average value. Measurement conditions are as follows: standard target, a distance of twice the standard
target distance between targets, and a setting distance of half the sensing distance.
2. When using any model at an ambient temperature between −40°C and −25°C and a power voltage between 30 and 32 VDC, use a load
current of 100 mA max.,
3. For USA and CANADA : use class 2 circuit only.
Load current
(See note 2.)
Residual voltage 2 V max. (under load current of 200 mA with cable length of 2 m)
fluence (See note 2.) ±10% max. of sensing distance at 23°C within temperature range of −25°C to 70°C
Pre-wired model Approx. 65 g Approx. 85 g
M12 connector model M12 connector models: Approx. 20 g
Sensing surface PBT
Cable PVC
Clamping nut Brass-nickel plated
E2A-S08@S02-@@-C1
E2A-S08@S02-@@-C2
12 to 24 VDC. Ripple (p-p): 10% max.
(10 to 32 VDC)
-C models: NPN open collector
200 mA max. (32 VDC max.)
-B1/-C1 models: NO
-B2/-C2 models: NC
For details, refer to the timing charts.
Surge suppressor, Short-circuit protection
±15% max. of sensing distance at 23°C within temperature range of −40°C to 70°C
2
500 m/s
EN60947-5-2: EMC
-M1 models: M12 4-pin connector models
-M5 models: M8 3-pin connector models
M8 connector models: Approx. 15 g
, 10 times each in X, Y and Z directions 1,000 m/s2, 10 times each in X, Y and Z directions
E2A-M08@N04-M1-B1
E2A-M08@N04-M1-B2
E2A-M08@N04-M1-C1
E2A-M08@N04-M1-C2
E2A-S08@N04-@@-B1
E2A-S08@N04-@@-B2
E2A-S08@N04-@@-C1
E2A-S08@N04-@@-C2
−40°C to
85°C (with no icing or condensation)
E2A-M12@S04-@@-B1
E2A-M12@S04-@@-B2
E2A-M12@S04-@@-C1
E2A-M12@S04-@@-C
Output reverse polarity protection, Power source
circuit reverse polarity protection, Surge suppressor, Short-circuit protection
Approx. 35 g
E2A-M12@N08-@@-B1
E2A-M12@N08-@@-B2
E2A-
M12@N08-@@-C1
2
E2A-M12@N08-@@-C2
4 E2A Cylindrical Proximity Sensor
■ DC 3-wire Models
Size M18 M30
Type Shielded Non-shielded Shielded Non-shielded Non-shielded
E2A-M18@S08-@@-B1
E2A-M18@S08-@@-B2
Item
E2A-M18@S08-@@-C1
E2A-M18@S08-@@-C2
Sensing distance 8 mm±10% 16 mm±10% 15 mm±10% 20 mm±10% 30 mm±10%
Setting distance 0 to 6.4 mm 0 to 12.8 mm 0 to 12 mm 0 to 16 mm 0 to 24 mm
Differential travel 10% max. of sensing distance
Target Ferrous metal (The sensing distance decreases with non-ferrous metal.)
Standard target
(mild steel ST37)
Response frequency
(See note 1.)
Power supply voltage
(operating voltage range)
Current consumption (DC
3-wire)
Output type -B models: PNP open collector
Control
output
Load current (See
note 2.)
24×24×1 mm 48×48×1 mm 45×45×1 mm 60×60×1 mm 90×90×1 mm
500 Hz 400 Hz 250 Hz 100 Hz 100 Hz
12 to 24 VDC. Ripple (p-p): 10% max.
(10 to 32 VDC)
10 mA max.
-C models: NPN open collector
200 mA max. (32 VDC max.)
Residual voltage 2 V max. (under load current of 200 mA with cable length of 2 m)
Indicator Operation indicator (Yellow LED)
Operation mode
(with sensing object approaching)
-B1/-C1 models: NO
-B2/-C2 models: NC
For details, refer to the timing charts.
Protection circuit Output reverse polarity protection, Power source circuit reverse polarity protection, Surge suppressor, Short-circuit
protection
Ambient air temperature Operating: −40°C to 70°C, Storage: −40°C to 85°C (with no icing or condensation)
Temperature influence (See
note 2.)
ient humidity Operating: 35% to 95%, Storage: 35% to 95%
Amb
±10% max. of sensing distance at 23°C within temperature range of −25°C to 70°C
15% max. of sensing distance at 23°C within
±
Voltage influence ±1% max. of sensing distance in rated voltage range ±15%
Insulation resistance 50 MΩ min. (at 500 VDC) between current carry parts and case
Dielectric strength 1,000 VAC at 50/60 Hz for 1 min between current carry 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
Standard and listings
(See note 3.)
1,000 m/s
IEC60529: IP67, Degree of protection
EN60947-5-2: EMC
2
, 10 times each in X, Y and Z directions
Connection method -WP models: Pre-wired models (Standard length: 2 m)
-M1 models: M12 4-pin connector models
-M5 models: M8 3-pin connector models
Weight
(packaged)
Pre-wired model Approx. 160 g Approx. 280 g Approx. 280 g Approx. 370 g
M12 connector
model
Approx. 70 g Approx. 200 g Approx. 200 g Approx. 260 g
Material Case Brass-nickel plated
Sensing surface PBT
Cable PVC
Clamping nut Brass-nickel plated
Note 1. The response frequency is an average value. Measurement conditions are as follows: standard target, a distance of twice the standard
target distance between targets, and a setting distance of half the sensing distance.
2. When using any model at an ambient temperature between -40°C and -25°C and a power voltage between 30 and 32 VDC, use a load
current of 100 mA max.
3. For USA and CANADA : use class 2 circuit only.
E2A-M18@N16-@@-B1
E2A-M18@N16-@@-B2
E2A-M18@N16-@@-C1
E2A-M18@N16-@@-C2
E2A-M30@S15-@@-B1
E2A-M30@S15-@@-B2
E2A-M30@S15-@@-C1
E2A-M30@S15-@@-C2
E2A-M30KN20-@@-B1
E2A-M30KN20-@@-B2
E2A-M30KN20-@@-C1
E2A-M30KN20-@@-C2
temperature range of −40°C to 70°C
E2A-M30LN30-@@-B1
E2A-M30LN30-@@-B2
E2A-M30LN30-@@-C1
E2A-M30LN30-@@-C2
E2A Cylindrical Proximity Sensor 5
Engineering Data
Distance Y (mm)
X
Y
18
16
14
12
10
8
6
4
2
0
−30 −20 −10 0 10 20 30
E2A-M30@S15
Sensing distance X (mm)
E2A-M18@S08
E2A-M12@S04
E2A-S08@S02/
E2A-M08@S02
Shielded Models
X
Y
35
30
25
20
15
10
5
0
−50 −40 −30 −20 −10 0 10 20 30 40 50
Non-shielded Models
Distance Y (mm)
Sensing distance X (mm)
E2A-M30LN30
E2A-M18@N16
E2A-M12@N08
E2A-S08@N04/
E2A-M08
@
N04
E2A-M30KN20
0 5 10 15 20 25
Side length of sensing object d (mm)
Iron
@d
t = 1 mm
X
0.5
1.0
1.5
2.0
2.5
5.0
4.0
3.0
2.0
1.0
0
@d
t = 1 mm
X
5101520253035
0
1.0
2.0
3.0
4.0
5.0
7.0
8.0
6.0
10 20 30 40 50 60
@d
t = 1 mm
X
0
4
8
12
16
20
10 20 30 40 50 60 70 80
@d
t = 1 mm
X
Sensing distance X (mm)
Stainless steel (SUS303)
Aluminum
Side length of sensing object d (mm)
Brass
Iron
Sensing distance X (mm)
Stainless steel
(SUS303)
Aluminum
Copper
Side length of sensing object d (mm)
Brass
Iron
Sensing distance X (mm)
Copper
Stainless steel (SUS303)
Aluminum
E2A-S08@S02/M08@S02 E2A-M12@S04
E2A-M18@S08
E2A-M30@S15
Side length of sensing object d (mm)
Sensing distance X (mm)
Iron
Stainless steel (SUS303)
Brass
Copper
Brass
Copper
Aluminum
Operating Range (Typical)
Influence of Sensing Object Size and Materials
Shielded Models
6 E2A Cylindrical Proximity Sensor
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