SICK WTB4S-3P2261 Photoelectric Proximity Sensor, 180 mm, PN
SICK W4S-3 series miniature photoelectric proximity sensor, background suppression, PNP output, 180 mm sensing range, 500 µs response, IP66/IP67, M8 4-pin connector.
Specifications
| Parameter | Value |
|---|---|
| Series | W4S-3 |
| Sensor type | Photoelectric Proximity Sensor, Background Suppression |
| Parameter | Value |
|---|---|
| Sensing distance, max. | 180 mm |
| Sensing distance, min. | 4 mm |
| Response time | 500 us |
| Light type | PinPoint LED, Visible Red Light |
| Parameter | Value |
|---|---|
| Operating voltage, min. | 10 V |
| Operating voltage, max. | 30 V |
| Parameter | Value |
|---|---|
| Output type | PNP |
| Load current | 100 mA |
| Switching type | Light / Dark ON |
| Parameter | Value |
|---|---|
| Termination type | Connector, M8, 4-Pin |
| Parameter | Value |
|---|---|
| Protection rating (IP) | IP66;IP67 |
| Operating temperature, min. | -40 °C |
| Operating temperature, max. | 60 °C |
| Parameter | Value |
|---|---|
| Width | 12.2 mm |
| Height | 41.8 mm |
Product details
Frequently asked questions
How do I get current pricing and availability for WTB4S-3P2261?
Submit an RFQ through this listing. Pricing and stock are confirmed at quote time through independent distribution channels.
What is WTB4S-3P2261's listed width?
12.2 mm wide, which is narrow enough to fit between existing sensors on a tight bracket or DIN-rail adapter plate.
Will WTB4S-3P2261 drop into a panel specified around WTB4S-3P5232H without rewiring?
Both use the same M8 4-pin connector and PNP output, so the electrical swap is straightforward. The WTB4S-3P2261 is shorter (41.8 mm vs 63.2 mm) and narrower (12.2 mm vs 15.25 mm), so it fits the same bracket footprint but leaves extra clearance. The main trade-off is sensing range: 180 mm on this part versus 120 mm on the WTB4S-3P5232H, so verify the detection distance matches your application.
What this sensor does on your line
The SICK WTB4S-3P2261 is a miniature photoelectric proximity sensor with background suppression from the W4S-3 family. It detects objects up to 180 mm away using a visible red PinPoint LED, and the background suppression means it ignores surfaces behind the target — no false triggers from a conveyor belt or machine frame behind the detection zone. The 500 µs response time catches fast-moving parts on a packaging or assembly line without missing a beat.
At 12.2 mm wide and 41.8 mm tall, this sensor fits into tight spaces where a standard 18 mm cylindrical sensor won't. The M8 4-pin connector keeps wiring clean — no cable glands to wrestle in a crowded junction box. Rated IP66 and IP67, so it handles washdown on food processing lines or dust in a sawmill without sealing concerns. Operating temperature from -40 °C to 60 °C covers freezer applications and hot factory floors alike.
Output and switching logic
PNP output (sourcing) at 100 mA max — mates directly to sinking PLC inputs common in European-style control cabinets. Switching is selectable Light / Dark ON via the teach-in, so you can set it to fire when an object is present or when the beam is clear. Runs on 10–30 VDC, which is standard for industrial sensor supplies.