GL-R16H Keyence Safety Light Curtain | Type 4 Hand Protection

GL-R16H Keyence Safety Light Curtain – Type 4, Hand Protection, 16 Beam Axes

The GL-R16H is a robust Type 4 safety light curtain from the GL-R series. It ships as a transmitter and receiver set. This is a hand protection type with 16 beam axes. Detection capability is ø25 mm. Beam axis spacing is 20 mm. Detection height is 300 mm. Total length is 320 mm. The light source is an infrared LED at 870 nm. It reaches SIL3, SIL CL3, Category 4, and PLe. Response time is 6.6 ms max. Protection rating is IP65/IP67. The GL-R16H is active and in production as of 2026-09.

Optical and Detection Data

• Model: GL-R16H
• Brand: Keyence
• Series: GL-R series
• Type: Type 4 ESPE / AOPD, transmitter + receiver
• Protection type: Hand protection
• Detection capability: ø25 mm
• Beam axes: 16
• Beam axis spacing: 20 mm
• Detection height: 300 mm
• Total length: 320 mm
• Light source: Infrared LED, 870 nm
• Effective aperture angle: Max ±2.5° at 3 m or more
• Detecting distance: 0.2 to 15 m
• Detection mode: ON when no interruption in zone

Synchronization and Interference

• Synchronization: Optical or wire, set by wiring
• Interference prevention: Up to 2 GL-R systems
• Optical mode: Channel A/B switch
• Wire mode: Automatic

Safety Output and Response

• OSSD outputs: 2 transistor outputs
• Output logic: PNP or NPN, set by cable type
• Max load: 500 mA
• Response time: Max 6.6 ms (OSSD, channel 0, ON to OFF)
• 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
• AUX output: Error / muting-lamp, max 50 mA

Electrical and Protection

• Supply voltage: 24 VDC ±20%, ripple 10% or less, Class 2
• Current, transmitter: Max 50 mA with indicator ON
• Current, receiver: Max 69 mA with indicator ON
• Protection circuit: Reverse-current, short-circuit, surge
• Overvoltage category: II

Safety Standards and EMC

• Safety: IEC61496-1/-2 Type 4, IEC61508 SIL3, IEC62061 SIL CL3
• Machinery: EN ISO13849-1 Category 4, PLe
• North America: UL508, UL1998
• EMC: IEC/EN61496-1, EN55011 Class A, FCC Part15B Class A, ICES-003 Class A

Environment and Build

• Operating temperature: -10 to +55 °C (no freezing)
• Storage temperature: -25 to +60 °C (no freezing)
• Operating humidity: 15 to 85% RH (no condensation)
• Storage humidity: 15 to 95% RH
• Ambient light: 3,000 lux incandescent or less; 20,000 lux sunlight or less
• Protection rating: IP65/IP67 (IEC60529)
• Main unit: Aluminum
• Upper/lower case: Nylon (GF 30%)
• Front cover: Polycarbonate, SUS304
• Weight: Transmitter 430 g; Receiver 440 g

Oiltech Controls Review

The GL-R16H is a compact Type 4 curtain for hand protection at machine openings. The 16 beams cover a 300 mm detection height. The 320 mm total length fits tight guards. The ø25 mm detection capability catches fingers and hands. The 6.6 ms response time supports short safety distances. The aluminum body and IP65/IP67 rating survive washdown and chips. The unit meets SIL3, PLe, and Category 4. It ships as a matched transmitter and receiver pair. The GL-R series uses optical or wire sync. This cuts setup time on long runs. The OSSD outputs drive safety relays and safety PLCs. The AUX output helps with error and muting lamp signals. This model has no built-in network port. It is a hardwired safety device.

Oiltech Controls’s Insight

• Verify the safety distance before mounting.
• Use wire sync in dirty or bright areas.
• Keep the aperture angle in mind above 3 m.
• Match PNP or NPN to your safety relay.
• Check the 2.5 Ω load wiring limit.
• Clean the front cover to avoid nuisance trips.

Compatible Equipment

• Safety relays and safety PLCs
• Machine guards, doors, and access hatches
• Presses, robots, and assembly cells
• Packaging and palletizing lines
• Muting lamps and muting sensors
• Legacy GL-R series brackets and cables

Why Buy From Oiltech Controls?

• More than 15 years in industrial automation spare parts.
• Global shipment support with FedEx, UPS, and DHL.
• Tested industrial surplus and refurbished options.
• 12-month warranty on every order.
• Technical verification before shipment.
• Support for obsolete control systems.
• Orders dispatch in 24 to 28 hours.

Contact us at info@oiltechcontrols.com or +86 158 8020 0923 on WhatsApp.

FAQ

Q: How do I calculate the minimum safety distance for the GL-R16H?

A: Use the response time of 6.6 ms plus your machine stop time. Add the approach speed of the body. Follow ISO13855 for the full formula. Short response time allows a shorter distance.

Q: Should I use optical or wire synchronization?

A: Wire sync is more stable in bright light. It also suits dusty plants. Optical sync saves wiring on long runs. Use optical sync only when the beams stay aligned. Test both if you are unsure.

Q: Can two GL-R16H pairs work near each other?

A: Yes, up to 2 GL-R systems. Set Channel A and B for optical sync. Wire sync handles it automatically. Keep the beams from crossing between pairs.

Q: What does the AUX output do?

A: It is a non-safety output. It signals errors or drives a muting lamp. Max load is 50 mA. It cannot replace the OSSD for safety functions.

Q: How do I choose between hand and finger protection types?

A: Pick hand protection for openings where only hands can reach. Pick finger protection when small parts can enter. The GL-R16H uses ø25 mm detection. This suits most guard doors and access points.

SEO and Ordering Notes

• Warranty: 12 months from Oiltech Controls.
• Dispatch: 24 to 28 hours after order.
• Shipping: FedEx, UPS, DHL.
• Stock: New, surplus, and refurbished options.
• Support: Obsolete control systems welcome.

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