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  • Photoelectric Switch
  • Photoelectric Switch
  • Photoelectric Switch
  • Photoelectric Switch

Photoelectric Switch E3T-SR21 2M

E3T-SR21 2M
Package Qty.
Ship pack of
97.75 SGD
Shipped after 2017-08-01
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Item Feature
This product is manufactured in Japanese standards. Please check the specification before you order.
Impact Resistance
1000m / s 2 X, Y, 3 times each direction Z
Ambient Humidity (% RH)
35-95 (However, you can no condensation): 35-85, Storage Operating:
Insulation Resistance (Mohm)
More than 20 (DC500V)
Material (case)
Polybutylene terephthalate
Protection Structure
IEC standard IP67
Material (lens)
Methacrylic resin
Type M2 type Mounting M2
Angle of Beam Spread (degree)
2 to 10 degree
Dimensions (Height H x Width W x Depth D) (mm)
Operating Mode
Control Output
(: 1V or less, 10 to 50mA load current: 2V or less residual voltage load current less than 10mA) open collector output type Light-ON load current less than 50mA load power supply voltage below DC26.4V
Minimum Detecting Object
phi2mm opaque body (typical example)
Protection Circuit
Surge absorption, load short-circuit protection, output reverse connection protection, reverse connection of power supply protection, mutual interference prevention function
Instruction manual, + screw (M2x14), nut, spring washer, flat washer, a reflection plate (E39-R4)
Using Periphery illuminanation (Lx)
Incandescent lamp: 5000 or less, sunlight: 10,000 or less
Vibration Resistance
300m / s 2 X, Y, Z each direction 0.5h or 10 to 2000Hz double amplitude 1.5mm
Operating Ambient Temperature (deg C)
Operation time:-25 to +55Reserving time:-40 to +70(No condensation, No freezing)
Response Time
Operation and return: each 1ms or less
Withstand Voltage
AC1000V 50/60Hz 1min
Table \ 示窓: denaturation polyallylate
NPN output
Connection Method
Code drawer type
Standard Detective Object (mm)
Opaque body phi27mm more
Detection Method
Retro-reflective (no M.S.R. function )
Cord Length (m)
Detection Distance
(E39-R4 when using reflective plate) 10 to 200mm
Supply Voltage
DC12 to 24V +/- 10% ripple (p-p) 10% or less
Consumption Electric Current (mA)
20 or less
Light Sources (projection of light wavelength)
Red light-emitting diode (point light source LED) (650nm)