The SICK PHOTOELECTRIC SENSORS GTB6-P4211 GTB6-P4212 are advanced photoelectric proximity sensors featuring background suppression technology, designed for precise object detection in industrial automation systems. These sensors utilize a PinPoint LED light source with a visible red wavelength of 650 nm, delivering a focused light spot size of Ø 6 mm at a distance of 100 mm. With a sensing range adjustable from 35 mm to 140 mm (maximum up to 250 mm), they excel in applications requiring consistent detection regardless of target color or reflectivity. The PNP switching output supports both light and dark switching modes, selectable via a built-in mechanical spindle with 5 turns for fine adjustment. Encased in a compact rectangular housing (12 mm x 31.5 mm x 21 mm) made of durable ABS/PC plastic and PMMA optics, these sensors offer IP67 protection, making them suitable for dusty or wet environments. Each unit includes a stainless steel mounting bracket (BEF-W100-A) and a 4-pin M8 male connector for secure integration.
| Parameter |
Specification |
| Sensor / Detection Principle |
Photoelectric proximity sensor, Background suppression |
| Dimensions (W x H x D) |
12 mm x 31.5 mm x 21 mm |
| Housing Design (Light Emission) |
Rectangular |
| Sensing Range Max. |
5 mm … 250 mm (with background suppression) |
| Sensing Range |
35 mm … 140 mm |
| Type of Light |
Visible red light |
| Light Source |
PinPoint LED |
| Light Spot Size (Distance) |
Ø 6 mm (100 mm) |
| Wavelength |
650 nm |
| Adjustment |
Mechanical spindle, 5 turns |
| Supply Voltage |
10 V DC … 30 V DC |
| Ripple |
± 10 % |
| Current Consumption |
30 mA |
| Switching Output |
PNP |
| Switching Mode |
Light/dark switching |
| Switching Mode Selector |
Selectable via light/dark selector |
| Signal Voltage PNP HIGH/LOW |
VS – (≤ 3 V) / approx. 0 V |
| Output Current Imax. |
≤ 100 mA |
| Response Time |
< 625 µs |
| Switching Frequency |
1,000 Hz |
| Connection Type |
Male connector M8, 4-pin |
| Circuit Protection |
A, B, D (as per manufacturer standards) |
| Protection Class |
III |
| Weight |
20 g |
| Housing Material |
Plastic, ABS/PC |
| Optics Material |
Plastic, PMMA |
| Enclosure Rating |
IP67 |
| Items Supplied |
Stainless steel mounting bracket (1.4301/304) BEF-W100-A |
| Ambient Operating Temperature |
–25 °C … +55 °C |
| Ambient Storage Temperature |
–40 °C … +70 °C |
| UL File No. |
NRKH.E348498 & NRKH7.E348498 |
What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22