Product Description

The Keyence SL-U2 is a dedicated switching-type power supply unit designed to support the SL-C Series safety light curtains. It converts an input voltage of 100–240 VAC to a stable 24 VDC output, delivering up to 1.8 A to power the connected safety devices. The unit features a compact DIN rail-mountable design, ensuring easy integration into control panels. With a rapid supply voltage interruption recovery time of 10 ms, it maintains consistent operation in dynamic industrial environments. The SL-U2 complies with international safety and electromagnetic compatibility standards, including EN62368-1, UL 60950-1, and EN61000-6-2, making it suitable for a wide range of industrial applications.​

Technical Specifications

• Model: SL-U2
• System Type: Switching-type power supply
• Input Voltage: 100–240 VAC ±10% (50/60 Hz)
• Output Voltage: 24 VDC ±10% (Class 2)
• Output Current: 1.8 A
• Power Consumption: 135 VA
• Ripple/Noise: 240 mV peak-to-peak or less
• Supply Voltage Interruption Recovery Time: 10 ms max
• Withstand Voltage: 1,500 VAC for 1 minute (between all external terminals and case)
• Insulation Resistance: At least 50 MΩ (500 VDC megger, between all external terminals and case)
• Environmental Resistance:
• Pollution Degree: 2
• Overvoltage Category: II
• Operating Ambient Temperature: -10 to +55°C (14 to 131°F)
• Relative Humidity: 35 to 85% RH (no condensation)
• Mechanical Durability:
• Vibration Resistance: 10 to 55 Hz, double amplitude 0.7 mm, 20 sweeps in each of the X, Y, and Z directions
• Shock Resistance: 100 m/s² (approx. 10 G), 16 ms pulse, 1,000 times in each of the X, Y, and Z directions
• Weight: Approximately 240 g​