ESPE – ESP Series

Against strong light safety light curtain

Brand : ESPE

The ESPE ESP Series is an industrial safety light curtain specially developed for environments with intense ambient light, including outdoor locations exposed to direct sunlight. It employs a unique optical lens design and robust infrared detection to maintain reliable sensing even under strong light conditions, making it suitable for applications where ordinary light curtains would fail due to sunlight glare or high brightness interference. The series features independent MCU self‑diagnosis, over‑current protection, and redundant outputs that connect directly to PLCs or safety controllers, ensuring dependable basic presence detection and easy integration with control systems.

Designed for long sensing distances up to 20 m and IP65‑rated rugged aluminum housings, the ESP Series can guard wide openings, outdoor gates, access points, material transfer zones, and other areas exposed to strong lighting. With multiple beam spacings and protective heights, it adapts to different application requirements while maintaining environmental resistance and installation flexibility.

For more info, download our full technical spec.

Specifications

Parameter of safety light curtain
Supply voltage DC24V±20%
Capacity <5W
Beam space 20mm、40mm
Resolution 30mm、50mm
Beams 20mm : 8, 16, 24……160

40mm : 8, 16, 24……80

Protective height Protective height =(N-1)*beam gap(N is beam)
Wave length 940nm
Response time Response time =(N * 0.1ms) + 0.4ms( N is beam)
Type of output(OSSD) PNP or NPN

Load current ≤ 200mA, residual voltage ≤ 1V (except for voltage drop caused by cable extension)and leakage current ≤ 1mA.

Protective circuit Overload voltage protection, power supply reverse polarity protection, over current protection.
Sensing distance 0.1~2m、0.1~5m, 0.1~10m, 0.1~20m (remark: If have light reflection, please let us know)
Anti-optical interference 10000Lux(angle >5°)
Sensing method Thru-beam
Synchronization Wire synchronization
Enclosure material Aluminum alloy
Enclosure rating IP65
Housing cross-section 35*50mm
Vibration resistance 10~55Hz,double amplitude each in X、Y、Z directions for 20 times.
Ambient operating temperature -10~55℃(with no freezing)
Storage temperature -30~70℃(with no freezing)
Ambient operating humidity When temperature is 20℃,humidity max 85%

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