Overview
The Keyence SL-C24H-T is a safety light curtain transmitter designed for industrial automation and machinery protection applications. This unit functions as the transmitting component in the SL-C24H safety light curtain system, emitting infrared beams across a 460mm detection zone. Made in Japan, the SL-C24H-T has been discontinued but remains in widespread use across manufacturing facilities for machine guarding and operator safety.
Key Features
- 24 optical axes with infrared LED light source for object detection
- 460mm guarded area (protection height) with 15ms response time
- 24VDC operation at 76mA current draw
- ±2.5° maximum effective aperture angle when operating distance is 3m or greater
- 5mm lens diameter with ø25mm detection capability
- Compact mounting design compatible with DIN rail or direct fastening
Technical Specifications
- Optical Axes: 24
- Detection Zone (Guarded Area): 460mm (approximately 505mm protection height)
- Light Source: Infrared LED
- Response Time: 15ms
- Supply Voltage: 24VDC
- Current Consumption: 76mA
- Aperture Angle: ±2.5° (at 3m operating distance minimum)
- Detection Capability: ø25mm (blanking function not used)
- Lens Diameter: 5mm
- Unit Length: 470mm
- Country of Origin: Japan
- Series: SL-C (General-purpose Safety Light Curtain)
Typical Applications
- Press brake and stamping equipment guarding
- Automated assembly line safety barriers
- Industrial robot work envelope protection
- Packaging machinery emergency stop triggering
- Machine tool access point monitoring
- Conveyor system safety monitoring
Compatibility & Replacements
Compatible With
- Keyence SL-C24H-R receiver unit (paired transmitter/receiver configuration)
- 24VDC industrial control power supplies
- Safety relay modules and emergency stop circuits
- Category 4 safety rated control systems
- OSSD (Output Safety Status Data) compatible safety logic
Replaces / Drop-In Replacement For
- Keyence SL-C24H series transmitter units
- Verify compatibility with your system integrator before ordering to ensure control circuit compatibility
Works With
- Keyence safety light curtain control modules and amplifiers
- 24VDC industrial PLC and safety controller outputs
- Keyence GL-V series (modern successor product)
- Standard industrial safety relay circuits
- Hardwired emergency stop (E-STOP) systems
