Keyence GL-R12H Safety Light Curtain
The GL-R12H is a Type 4 safety light curtain from the Keyence GL-R series. It is a hand protection model with 12 beam axes. Therefore, total length stays at 240 mm. Moreover, detection height is 220 mm. In addition, beam spacing is 20 mm. Detection capability is ø25 mm. The set includes a transmitter and receiver. Furthermore, optical or wire synchronization depends on wiring. Infrared LED light at 870 nm drives the beams. As a result, response time on OSSD is 6.6 ms max. Engineers use it to guard press brakes, robot cells, and assembly stations. The housing is aluminum with a polycarbonate and SUS304 front cover. Consequently, IP65/IP67 rating supports washdown areas. In other words, this curtain fits harsh factory floors. For example, it resists coolant splash and dust.
Key Data
- Brand: Keyence
- Model: GL-R12H
- Series: GL-R series
- Product type: Type 4 safety light curtain, hand protection
- Set includes: Transmitter + receiver (Type 4 ESPE / AOPD)
- Synchronization: Optical or wire, set by wiring
- Light source: Infrared LED, 870 nm
- Effective aperture angle: Max. ±2.5° at 3 m or more
- Detection mode: ON when no interruption in detection zone
- Interference prevention: Up to 2 GL-R systems, Channel A/B for optical, automatic for wire
- Detection capability: ø25 mm
- Beam axes: 12
- Beam axis spacing: 20 mm
- Detection height: 220 mm
- Total length: 240 mm
- Detecting distance: 0.2 to 15 m
- Response time (OSSD, ON→OFF): Max. 6.6 ms
- Supply voltage: 24 VDC ±20%, ripple 10% or less, Class 2
- OSSD output: 2 transistor outputs, PNP or NPN by cable, max. 500 mA load
- Residual voltage ON: Max. 2.5 V at 5 m cable
- OFF-state voltage: Max. 2.0 V at 5 m cable
- Leakage current: Max. 200 µA
- Max. capacitive load: 2.2 µF
- Load wiring resistance: Max. 2.5 Ω
- Supplemental output: AUX / error / muting-lamp transistor, PNP/NPN by cable, max. 50 mA
- Safety standards: IEC61496-1/-2 Type 4, IEC61508 SIL3, IEC62061 SIL CL3, EN ISO13849-1 Category 4 PLe, UL508, UL1998
- EMC: IEC/EN61496-1, EN55011 Class A, FCC Part15B Class A, ICES-003 Class A
- Protection circuit: Reverse-current, per-output short-circuit, surge protection
- Current consumption: Transmitter max. 46 mA, receiver max. 68 mA, OSSD current excluded
- Operating temperature: -10 to +55 °C, no freezing
- Storage temperature: -25 to +60 °C, no freezing
- Humidity: 15 to 85 % RH operating, 15 to 95 % RH storage, no condensation
- Ambient light: Incandescent 3,000 lux or less, sunlight 20,000 lux or less
- Protection rating: IP65/IP67 (IEC60529)
- Overvoltage category: II
- Material: Aluminum main unit, nylon GF30% cases, polycarbonate and SUS304 front cover
- Weight: Transmitter 320 g, receiver 330 g
- Lifecycle: Active; official Keyence production status confirmed, last verified 2026-09
Best Fit Equipment
- Press brakes and hydraulic presses
- Robot cells and pick-and-place stations
- Palletizing and packaging lines
- Automated assembly benches
- Material handling and conveyor gates
- Any machine needing Type 4 hand protection to 220 mm
Why Buy From Oiltech Controls?
- Over 15 years in industrial automation spare parts.
- Worldwide shipment support.
- Tested industrial surplus and refurbished options.
- 12-month warranty on every GL-R12H set.
- Technical verification before shipment.
- Support for obsolete control systems.
Shipping and Warranty
- 12-month warranty covers function and defects.
- Dispatch in 24-28 hours after payment.
- Carriers: FedEx, UPS, DHL.
- Tracking number sent for every order.
- Shock-proof packing protects both units and cables.
Oiltech Controls Review
- 6.6 ms response time helps meet short safety distances.
- IP65/IP67 rating suits washdown and coolant areas.
- Optical or wire sync gives wiring freedom.
- Up to 2 GL-R systems prevent crosstalk in tight cells.
- PLe SIL3 rating matches Category 4 safety circuits.
FAQ
Q: How do I choose between optical and wire synchronization?
A: Use optical sync when wiring is hard. However, use wire sync when you need automatic interference prevention.
Q: What is the minimum safety distance for this curtain?
A: It depends on machine stop time and approach speed. Therefore, use the 6.6 ms response time in your ISO 13855 calculation. Moreover, add the machine stopping time for a safe result.
Q: Can two GL-R12H sets work side by side?
A: Yes. Up to 2 GL-R systems can run together with Channel A/B or wire sync. In addition, wire sync handles interference automatically.
Q: Is the GL-R12H suitable for outdoor use?
A: It handles sunlight up to 20,000 lux. However, shield it from direct rain unless the panel is IP65/IP67 sealed. For example, add a sun shield on open frames.
Q: What should I check before ordering a replacement?
A: Confirm 12 beam axes, 240 mm total length, ø25 mm detection, OSSD type PNP or NPN, and cable length. Moreover, check the sync method used on your machine. Also, verify the mounting brackets fit your frame.
Contact us: info@oiltechcontrols.com or +86 158 8020 0923.
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