WTB4SL-3P2261

Miniature photoelectric sensors
W4

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Features

Functional principle

Photoelectric proximity sensor

Functional principle detail

Background suppression

Sensing range max.

25 mm … 300 mm ¹⁾

Sensing range

25 mm … 300 mm ¹⁾

Emitted beam
Light source	Laser ²⁾
Type of light	Visible red light
Light spot size (distance)	Ø 1 mm (170 mm)

Key laser figures
Normative reference	EN 60825-1:2014, IEC 60825-1:2014 / CDRH 21 CFR 1040.10 & 1040.11
Laser class	1
Wave length	650 nm

Adjustment

Potentiometer, 5 turns

Special applications

Detecting small objects

Mounting hole

¹⁾ Object with 90% remission (based on standard white, DIN 5033).
²⁾ Average service life: 50,000 h at T_U = +25 °C.

Safety-related parameters
MTTF_D 424 years (EN ISO 13849-1) ¹⁾

DC_avg 0 %
- ¹⁾ Mode of calculation: Parts-Count-calculation.

Electrical data

Supply voltage U_B

10 V DC … 30 V DC ¹⁾

Ripple

< 5 V_pp ²⁾

Current consumption

30 mA ³⁾

Protection class

III

Digital output
Type	PNP ⁴⁾
Output current I_max.	≤ 100 mA
Response time	≤ 0.5 ms ⁵⁾
Switching frequency	1,000 Hz ⁶⁾

Switching mode

Light/dark switching ⁴⁾

Output function

Complementary

Circuit protection

A ⁷⁾

B ⁸⁾

C ⁹⁾

¹⁾ Limit values when operated in short-circuit protected network: max. 8 A.
²⁾ May not exceed or fall below U_v tolerances.
³⁾ Without load.
⁴⁾ Q = light switching.
⁵⁾ Signal transit time with resistive load.
⁶⁾ With light/dark ratio 1:1.
⁷⁾ A = V_S connections reverse-polarity protected.
⁸⁾ B = inputs and output reverse-polarity protected.
⁹⁾ C = interference suppression.

Mechanical data

Housing

Rectangular

Design detail

Slim

Dimensions (W x H x D)

12.2 mm x 41.8 mm x 17.3 mm

Connection

Male connector M8, 4-pin

Material
Housing	Plastic, Novodur
Front screen	Plastic, PMMA

Weight

100 g

Ambient data

Enclosure rating	IP66 IP67
Ambient operating temperature	–10 °C … +50 °C
Ambient operating temperature extended	–30 °C … +55 °C ¹⁾ ²⁾
Ambient temperature, storage	–30 °C … +70 °C
RoHS certificate	✔

¹⁾ As of T_a = 50 °C, a max. supply voltage V_max. = 24 V and a max. load current I_max. = 50 mA is permitted.
²⁾ Operation below Tu –10 °C is possible if the sensor is already switched on at Tu > –10 °C, then cools down, and the supply voltage is subsequently not switched off. Switching on below Tu –10 °C is not permissible.

Classifications

eCl@ss 5.0	27270904
eCl@ss 5.1.4	27270904
eCl@ss 6.0	27270904
eCl@ss 6.2	27270904
eCl@ss 7.0	27270904
eCl@ss 8.0	27270904
eCl@ss 8.1	27270904
eCl@ss 9.0	27270904
eCl@ss 10.0	27270904
eCl@ss 11.0	27270904
eCl@ss 12.0	27270903
ETIM 5.0	EC002719
ETIM 6.0	EC002719
ETIM 7.0	EC002719
ETIM 8.0	EC002719
UNSPSC 16.0901	39121528