D-37E2A3
E2A3
Specifications
DC 3-wire Models
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.
Size M8 M12 M18 M30
Type Shielded Shielded Shielded Shielded
Item
E2A3-S08KS03-@@-B@
E2A3-S08KS03-@@-C@
E2A3-M12KS06-@@-B@
E2A3-M12KS06-@@-C@
E2A3-M18KS11-@@-B@
E2A3-M18KS11-@@-C@
E2A3-M30KS20-@@-B@
E2A3-M30KS20-@@-C@
Sensing distance 3 mm ± 10% 6 mm ± 10% 11 mm ± 10% 20 mm ± 10%
Setting
distance
Ambient temp. of
−25 to 70°C
0 to 2.1 mm 0 to 4.2 mm 0 to 7.7 mm 0 to 14 mm
Ambient temp. of
−10 to 60°C
0 to 2.4 mm 0 to 4.8 mm 0 to 8.8 mm 0 to 16 mm
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)
12 to 24 VDC. Ripple (p-p): 10% max.
(10 to 32 VDC)
Current consumption 10 mA max.
Output type
-B models: PNP open collector
-C models: NPN open collector
Control output
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)
Indicator Operation indicator (Yellow LED)
Operation mode
-B1/-C1 models: NO
-B2/-C2 models: NC
For details, refer to the timing charts.
Protection circuits
Power source circuit re-
verse polarity protection,
Surge suppressor, Short-
circuit protection
Output reverse polarity protection, Power source circuit reverse polarity protec-
tion, Surge suppressor, Short-circuit protection
Ambient air temperature Operating: −25°C to 70°C, Storage: −25°C to 70°C
Temperature influence
±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°
C to 60°C
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
500 m/s
2
, 10 times each
in X, Y, and Z directions
1,000 m/s
2
, 10 times each in X, Y and Z directions
Standards and listings
(See note 2.)
IP67 after IEC 60529
IP69K after DIN 40050
EMC after EN60947-5-2
Connection method
-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
Weight
(packed state)
Pre-wired Models Approx. 65 g Approx. 85 g Approx. 160 g Approx. 280 g
Connector Models
M12 Connector Models:
Approx. 20 g
Approx. 35 g Approx. 70 g Approx. 200 g
Material
Case Stainless steel Brass-nickel plated
Sensing surface PBT
Cable PVC
Clamping nut Stainless steel Brass-nickel plated
