The SICK WLL180T series fiber-optic amplifiers, including models WLL180T-P432, WLL180T-P434, WLL180T-P474, and WLL180T-P435, are versatile stand-alone units designed for demanding industrial automation tasks. These amplifiers leverage a visible red LED light source (650 nm) to achieve exceptional sensing ranges—up to 20 m in through-beam configurations and up to 1,400 mm in proximity systems. With a menu-controlled adjustment interface featuring a single teach-in button and dual 4-character digital displays, operators can easily set parameters and monitor both set and actual values in real time. The built-in multifunctional input (MF) and programmable delay functions (0 ms to 9,999 ms) provide flexibility for complex timing sequences, while the PNP output supports light/dark switching with selectable response times ranging from ≤16 µs to ≤8,000 µs. Housed in a durable ABS/PC plastic rectangular enclosure measuring 10.5 mm x 34.6 mm x 71.9 mm, these amplifiers offer IP50 protection and are supplied with a BEF-WLL180 mounting bracket for straightforward installation. The 2-meter PVC cable (4-wire, 0.2 mm² conductor cross-section) ensures reliable connectivity, and the unit operates efficiently on 12 V DC to 24 V DC supply voltage with a power consumption of just 50 mA. Ideal for high-speed applications, the WLL180T series delivers switching frequencies up to 31.2 kHz, making it a robust choice for precision detection in packaging, material handling, and assembly lines.
| Parameter | Specification |
|---|---|
| Type | Stand-alone |
| Dimensions (W x H x D) | 10.5 mm x 34.6 mm x 71.9 mm |
| Housing design (light emission) | Rectangular |
| Sensing range max. | 0 m … 20 m (Through-beam system), 0 mm … 1,400 mm (Proximity system) |
| Focus | 5) |
| Type of light | Visible red light |
| Light source | LED (6) |
| Angle of dispersion | Approx. 65° (5) |
| Wave length | 650 nm |
| Adjustment | Menu-controlled, Single teach-in button, Cable |
| Delay time | Programmable, 0 ms … 9,999 ms |
| Time functions | Without time delay, Off delay, On delay, ON and OFF delay, One shot |
| Indication | Display |
| Display | LED status display / 2x 4-character digital dual displays, Set value (green indicator) and actual value (red indicator) are displayed simultaneously, display of parameters |
| Supply voltage | 12 V DC … 24 V DC (1) |
| Ripple | ≤ 10 % (2) |
| Power consumption | 50 mA (3) |
| Switching output | PNP |
| Number of switching outputs | 1 |
| Switching mode | Light/dark switching |
| Switching mode selector | Manually selectable |
| Output current Imax. | ≤ 100 mA |
| Response time | ≤ 16 µs, ≤ 70 µs, ≤ 250 µs, ≤ 2,000 µs, ≤ 8,000 µs (4) |
| Switching frequency | 31.2 kHz, 7.1 kHz, 2 kHz, 250 Hz, 62.5 Hz |
| Input | Multifunctional input MF |
| Connection type | Cable, 4-wire, 2 m (5) |
| Cable material | PVC |
| Conductor cross-section | 0.2 mm² |
| Circuit protection | A (6), B (7), C (8), D (9) |
| Protection class | III |
| Weight | 25 g |
| Housing material | Plastic, ABS/PC |
| Enclosure rating | IP50 (10) |
| Items supplied | BEF-WLL180 mounting bracket |
| Ambient operating temperature | –25 °C … +55 °C |
| Ambient storage temperature | –40 °C … +70 °C |
| UL File No. | NRKH.E300503 |
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