Tired of missing parts on a fast moving line? The Keyence PR-G51CBD self-contained M18 threaded-type through-beam photoelectric sensor catches every object before it slips away. It sends a clear signal the moment something breaks the light beam, so you can stop a machine, count items, or trigger a safety alarm. If you need reliable detection over long distances, this sensor solves the problem that many cheap units cannot handle.
Keyence PR-G51CBD self-contained M18 threaded-type through-beam photoelectric sensor
Manufacturing lines often lose productivity because a sensor cannot see far enough or reacts too slowly. When a detector fails, the whole line stops and repair costs rise. This sensor gives you a 30 meter detection range and a 1 ms response time, so you see objects instantly and keep the line moving. It also offers both NPN and PNP outputs, letting you match any control system without extra wiring.
Benefits
- Long 30 m range reduces the number of sensors you need.
- Fast 1 ms response prevents missed parts on high speed lines.
- Dual NPN/PNP outputs fit any PLC or controller.
- IP68 rating keeps the sensor working in dusty or wet environments.
- Simple one-turn sensitivity trimmer lets you fine-tune detection quickly.
Specifications
| Model |
PR-G51CBD |
| Type |
Thrubeam |
| Mounting |
Threaded mount type |
| Output |
NPN + PNP |
| Cable Connection |
M12 connector (4-pin) |
| Detecting Distance |
30 m (98.43 ft) |
| Number of Control Outputs |
2 (NPN + PNP) |
| Output Operation |
Output 1: Dark-ON
Output 2: Light-ON*1
|
| Response Time |
1 ms |
| Sensitivity Adjustment |
One-turn trimmer (230°) |
| Light Source |
4 elements, Red LED (631 nm) |
| Indicator Lamps |
Transmitter: power (green)
Receiver: output (yellow)
stable operation (green)
|
| Control Output Ratings |
NPN + PNP open collector
30 VDC or less, 100 mA or less
Residual voltage: 1.2 V or less at less than 10 mA, 2 V or less at 10 to 100 mA
|
| Stop Emission Input |
Non-voltage input
Input time ON: 1 ms or more,
OFF: 20 ms or more
|
| Protection Circuit |
Reverse power, power surge, output overcurrent, output surge, reverse output connection |
| Ratings |
|
| Power Voltage |
10 to 30 VDC, including Ripple (P-P) 10 % |
| Power Consumption |
Transmitter: 450 mW max.
(15 mA max. at 24 V, 15 mA max. at 12 V)
Receiver: 360 mW max.
(12 mA max. at 24 V, 15 mA max. at 12 V) |
| Environmental resistance |
|
| Enclosure Rating |
IP68 (IEC60529), IP69K (DIN40050-9), 4, 6, 13 (NEMA250)*2 |
| Insulation Resistance |
20 MΩ or more (500 VDC) |
| Ambient Light Tolerance |
Incandescent lamp: 5,000 lux or less, Sunlight: 20,000 lux or less |
| Ambient Temperature |
-20 to +70 °C -4 to 158 °F (No freezing)*3 |
| Relative Humidity |
35 to 85 % RH (No condensation) |
| Storage Temperature |
-20 to +70 °C -4 to 158 °F |
| Withstand Voltage |
1,000 VAC, 50/60 Hz, 1 min |
| Vibration Resistance |
10 to 55 Hz, Double amplitude 1.5 mm 0.06", 2 hours in each of the X, Y, and Z directions |
| Shock Resistance |
1,000 m/s2, 6 times in each of the X, Y, and Z directions |
| Accessories Included |
Instruction Manual, M18 nut, Lock washer |
| Weight |
Approx. 85 g |
