Technical Information & Details for MEAN WELL EPP-100-24 AC/DC Power Supply Output Power: 76.8 W (Free air convection) / 100.8 W (With 20 CFM forced air) Output Voltage: 24 V DC Output Current: 0 – 3.2 A (Convection) / 0 – 4.2 A (With 20 CFM fan) Voltage Adj. Range: 23.52 – 25.2 V DC Voltage Tolerance: ±1.0% Input Voltage Range: 90 – 264 V AC / 127 – 370 V DC Frequency Range: 47 – 63 Hz Efficiency: 92.5% (typ.) Power Factor: PF > 0.95 / 230 VAC (PF > 0.98 / 115 VAC at full load) Ripple & Noise: 240 mVp-p (max.) Auxiliary Power (AUX): 12 V @ 0.3 A for driving a fan (tolerance ±10%) No Load Power Consumption: < 0.5 W Input Current: typ. 1.4 A / 115 VAC, 0.7 A / 230 VAC Setup, Rise, Hold-up Time: 1000ms, 30ms / 230 VAC; 2000ms, 30ms / 115 VAC; Hold-up 16ms at full load Operating Temperature: −30 °C to +70 °C (refer to derating curve) Operating Humidity: 20 – 90% RH non-condensing Protections: Short circuit, Overload (105 – 145%, hiccup mode, auto-recovery), Overvoltage (27.7 – 31.5 V, shut down o/p & re-power to recover), Over temperature (shut down o/p & re-power to recover) Isolation Voltage: I/P-O/P: 3.0 kVAC, I/P-FG: 2.0 kVAC, O/P-FG: 0.5 kVAC Dimensions (L x W x H): 101.6 mm x 50.8 mm x 29 mm (4" x 2" compact size) Weight: approx. 0.2 kg Safety & EMC Standards: UL62368-1, TUV BS EN/EN62368-1, EAC TP TC 004, BS EN/EN55032 Class B, BS EN/EN61000-3-2,-3, BS EN/EN61000-4-2,3,4,5,6,8,11 Connectors: Input (JST B3P-VH), Output (JST B4P-VH), Fan AUX (JST B2B-PH-K-S) Manufacturer Warranty: 3 Years Information on MEAN WELL EPP-100-24 The MEAN WELL EPP-100-24 is a highly compact, 100 W open-frame AC/DC power supply built into a standard 4" x 2" footprint featuring an active PFC function. Designed for versatile installation, it operates across a wide universal input range of 90 to 264 V AC and delivers a regulated single 24 V DC output. It provides up to 3.2 A (76.8 W) under free air convection cooling, and up to 4.2 A (100.8 W) when provided with 20 CFM of forced air cooling. Featuring an exceptional efficiency rating of up to 92.5% and a no-load power consumption of less than 0.5 W, the EPP-100-24 supports energy-efficient system design. It also includes an auxiliary 12 V / 0.3 A output specifically dedicated to powering an external cooling fan. Comprehensive protections against short circuit, overload, overvoltage, and overtemperature are integrated as standard. Fully compliant with international safety and Class B EMC requirements, the module includes a 3-year manufacturer warranty.