WL27-3R2631

Features

Functional principle	Photoelectric retro-reflective sensor
Functional principle detail	Dual lens
Dimensions (W x H x D)	24.6 mm x 80.6 mm x 54 mm
Housing design (light emission)	Rectangular
Sensing range max.	0.1 m … 15 m ¹⁾
Sensing range	0.1 m … 11 m ¹⁾
Focus	Approx. 1.5°
Type of light	Visible red light
Light source	LED ²⁾
Light spot size (distance)	Ø 220 mm (10 m)
Angle of dispersion	Approx. 1.5°
Wave length	660 nm
Adjustment	Potentiometer

Mechanics/electronics

Supply voltage	20 V AC/DC … 250 V AC/DC ¹⁾
Power consumption	≤ 2.5 VA
Switching output	Relay, electrically isolated ²⁾
Output function	Change-over contacts
Switching mode	Light/dark switching
Switching mode selector	Selectable via time delay selector switch
Switching current (switching voltage)	4 A @ 250 V AC, 4 A @ 24 V DC, 0.125 A @ 250 V DC UL: 4 A @ 250 V AC, general use / 4 A @ 250 V AC, resistive (NO) / 3 A @ 250 V AC, resistive (NC) / 4 A @ 24 V DC, NO, general use / 3 A @ 24 V DC, NC, general use / R300 / B300 (NO contacts only) / 0 °C … +60 °C
Response time	≤ 10 ms
Switching frequency	10 Hz ³⁾
Time functions	On delay Off delay Switch on delay and time delay off
Delay time	Adjustable via time delay selector switch, 0.5 s … 10 s
Connection type	Connector Q6, 6-pin, AC/UC-coding
Circuit protection	A ⁴⁾ C ⁵⁾
Protection class	II ⁶⁾
Weight	120 g
Polarisation filter	✔
Housing material	Plastic, ABS
Optics material	Plastic, PMMA
Enclosure rating	IP65
Ambient operating temperature	–40 °C … +60 °C ⁷⁾
Ambient temperature, storage	–40 °C … +75 °C
UL File No.	NRKH.E181493 & NRKH7.E181493

¹⁾ Limit values.
²⁾ Provide suitable arc suppression for inductive or capacitive loads. Relay contacts are separated from the supply voltage by a basic isolation of 3 mm. Depending on the application, additional isolation might have to be applied in the user’s circuit.
³⁾ With light/dark ratio 1:1.
⁴⁾ A = V_S connections reverse-polarity protected.
⁵⁾ C = interference suppression.
⁶⁾ Reference voltage: 250 V AC, overvoltage category 2.
⁷⁾ UL: 0 °C … +60 °C.

Classifications