The Schneider Electric LUCA18FU is an 18-watt, compact, filtered switched-mode power supply (SMPS) from the Altivar or Automation component series. It is engineered to provide a highly stable and low-noise regulated 24V DC output for industrial control and instrumentation systems where power quality is critical.
Parameters
Parameter Specification
Product Family Automation / Drive Components (Compact Power Supply)
Device Type Filtered Switched-Mode Power Supply (SMPS)
Commercial Reference LUCA18FU
Rated Output Power 18 W
Output Voltage 24 V DC (regulated)
Rated Output Current 0.75 A (750 mA)
Input Voltage Range 85 - 264 V AC (47 - 63 Hz) — Universal input.
Efficiency Typically > 80%
Regulation (Line/Load) Typically ±1%
Ripple & Noise Very low ripple and noise due to enhanced output filtering (e.g., < 50 mVp-p typical).
Inrush Current Limiting Yes.
Protection Features Short-circuit, overload, and overvoltage protection (automatic recovery after fault clearance).
Isolation Reinforced isolation between input and output (IEC/EN 61558).
Cooling Natural convection (fanless).
Connection Screw terminals.
Indicators Green LED for output power status.
Operating Temperature -20°C to +60°C (with derating above 50°C).
Storage Temperature -40°C to +85°C.
Relative Humidity 10% to 95% (non-condensing).
Safety Standards Complies with IEC/EN 61558, UL 508, CSA C22.2 No. 107.1.
EMC Standards Complies with stringent EMC standards (e.g., EN 55011/EN 55022 Class B, EN 61000-4 series).
Protection Class IP20 (for mounting inside an enclosure).
Mounting DIN-rail mounting (35 mm).
Dimensions (W x H x D) Approx. 30 mm x 90 mm x 68 mm (exact dimensions may vary).
Weight Approx. 0.2 kg.