In most procurement cycles, Q20ND-77759 is considered with Banner Photoelectric Sensor, Banner Laser Distance Sensor and Idec Relays, giving decision-makers confidence that they’ve chosen the most dependable component.
Q20ND: 77759 - Banner Industry Standard Global Housing Sensor
Q20ND 77759 Banner Industry Standard Global Housing Sensor
| Brand | Banner |
| Product Type | Photo sensor |
| Model Number | Q20ND |
Banner Industry Standard Global Housing Sensor Q20ND, 77759 Technical Specifications:
| Specification | Value |
|---|---|
| IP Rating | IP67 |
| Sensing Beam | Visible Red LED |
| NEMA / UL Type Rating | NEMA 4X |
| Sensing Mode (Detailed) | Diffuse |
| Housing Style | Rectangular |
| Primary Housing Material | Thermoplastic |
| Laser Classification | - |
| Input Output | Discrete |
| Connection Type | Cable Length 2m |
| Max Sensing Distance (mm) | 250 |
| Outputs | NPN |
| Power Supply | 10-30 V dc |
| Adjustments | Potentiometer |
| Max Op Temp (°C) | 60 |
| Min Op Temp (°C) | -20 |
| Number of Pins | 4 |
| Output response time (ms) | 0.8 |
| Small Visible Spot | - |
| Sensing Beam Wavelength | 655 |
| Delay at Power-up (ms) | 100 |
| Repeatability (µs) | 155 |
| Max Op Relative Humidity | 95% @ 50°C |
| Lens Material | Acrylic |
| Barrel Diameter (mm) | - |
| Indicator | LEDs |
The Q20ND by Banner is a rugged photoelectric sensor built with a diffuse sensing mode, offering a maximum sensing range of 250 mm with high reliability. It uses a visible red LED beam operating at a wavelength of 655 nm, allowing quick alignment and consistent detection of various object surfaces. Housed in a rectangular thermoplastic body and equipped with an acrylic lens, the sensor is resistant to industrial contaminants and mechanical stress. Its IP67 and NEMA 4X ratings ensure excellent protection against water, dust, and corrosion, making it suitable for both indoor automation and semi-outdoor operations.
This model supports NPN output via a 4-pin cable connection with a standard 2-meter length, simplifying integration in control panels or machine frames. Powered by a 10–30 V DC supply, the sensor operates efficiently across a wide temperature range of -20°C to +60°C and up to 95% relative humidity. It features a fast 0.8 ms response time, 155 µs repeatability, and a 100 ms power-up delay to support accurate and stable operation. Built-in LED indicators provide quick status updates during setup and maintenance. Adjustment via a potentiometer allows easy tuning for specific detection distances, making the Q20ND a practical choice for dynamic automation environments that demand reliable short-range object detection.
Applications of Q20ND: 77759 - Banner Industry Standard Global Housing Sensor
The Q20ND is ideal for applications such as conveyor part detection, automated bin filling, packaging line object verification, and machine presence sensing. Its diffuse sensing mode is especially useful when reflective surfaces are inconsistent or where a separate reflector/emitter cannot be installed. Engineers rely on its compact design for fitting into tight machine zones, and its rugged construction ensures low maintenance even in washdown or high-vibration settings. Whether you're upgrading legacy sensors or designing a new assembly line, the Banner Q20ND photoelectric sensor offers dependable sensing performance trusted by automation professionals worldwide. View the official Banner datasheet here.
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