In most procurement cycles, Q20E-77781 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.
Q20E: 77781 - Banner 12000mm Photoelectric Sensor
Q20E 77781 Banner 12000mm Photoelectric Sensor
| Brand | Banner |
| Product Type | Photo sensor |
| Model Number | Q20E |
Banner 12000mm Photoelectric Sensor Q20E, 77781 Technical Specifications:
| Specification | Value |
|---|---|
| IP Rating | IP67 |
| Sensing Beam | Visible Red LED |
| NEMA / UL Type Rating | NEMA 6 |
| Sensing Mode (Detailed) | Emitter |
| Housing Style | Rectangular |
| Primary Housing Material | Thermoplastic |
| Laser Classification | - |
| Input Output | - |
| Connection Type | Cable Length 2m |
| Max Sensing Distance (mm) | 12000 |
| Outputs | - |
| Power Supply | 10-30 V dc |
| Adjustments | N/A |
| Max Op Temp (°C) | 60 |
| Min Op Temp (°C) | -20 |
| Number of Pins | 4 |
| Output response time (ms) | N/A |
| Small Visible Spot | - |
| Sensing Beam Wavelength | 655 |
| Delay at Power-up (ms) | 100 |
| Repeatability (µs) | 140 |
| Max Op Relative Humidity | 95% @ 50°C |
| Lens Material | Acrylic |
| Barrel Diameter (mm) | - |
| Indicator | LEDs |
The Q20E from Banner is a powerful photoelectric emitter sensor designed for opposed-mode detection systems requiring long-distance reliability. With a maximum sensing distance of 12000 mm, this model excels in applications where wide-area coverage or large-object detection is necessary. It operates using a visible red LED beam with a 655 nm wavelength, offering precise alignment and stable optical performance. Housed in a rugged rectangular thermoplastic enclosure, the sensor is both IP67-rated and compliant with NEMA 6 standards, making it suitable for use in wet, dusty, or vibration-prone environments.
The Q20E: 77781 operates on a 10–30 V DC power supply and includes a durable 2-meter cable for easy integration into machine setups. Though this emitter doesn’t provide output on its own, it is designed to pair seamlessly with a compatible receiver for complete opposed-mode functionality. It features a startup delay of 100 ms and ensures stable light emission with a repeatability of 140 µs. The integrated LED indicators help confirm operational status at a glance. Designed to function efficiently in ambient conditions ranging from -20°C to +60°C and humidity up to 95% at 50°C, this sensor is built for real-world industrial challenges, including outdoor and washdown zones. Its acrylic lens ensures consistent beam transmission while resisting wear and optical distortion over time.
Applications of Q20E: 77781 - Banner
The Q20E is ideally suited for use in material handling, pallet tracking, automotive assembly, and long conveyor systems where extended sensing distances are required. As part of an opposed-mode sensing pair, this emitter provides the light source for high-speed detection of moving parts, cartons, or bulk items. Engineers often deploy it in combination with receivers for reliable gate monitoring, object counting, and zone control. Its compact design allows mounting in tight machine frames, while its robust construction makes it dependable in challenging production environments. With its unmatched 12-meter range, the Banner Q20E photoelectric sensor helps reduce missed detections and false triggers—delivering the precision and trust Banner is known for. Click here to view the official Q20E datasheet.
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