• Output power: 40.32 W
• DC output voltage: 48 V DC
• Rated output current: 0.84 A
• Output type: Constant voltage PWM style output
• Dimming range: 0 – 100 % (3‑in‑1: 0–10 VDC, 10 V PWM signal, or resistance)
• PWM output frequency: approx. 1.47 kHz
• Overvoltage protection threshold: 54 – 60 V DC
• Setup / rise time: ≤ 500 ms, 80 ms @ 115 / 230 VAC (full load)
• Hold‑up time (typ.): approx. 16 ms @ 115 / 230 VAC (full load)
• Input voltage range: 90 – 305 V AC / 127 – 431 V DC, 47 – 63 Hz
• Power factor (typ.): PF > 0.97 @ 115 VAC, PF > 0.95 @ 230 VAC, PF > 0.92 @ 277 VAC (full load)
• Efficiency (typ.): approx. 90 %
• AC input current (typ.): 0.6 A @ 115 VAC / 0.3 A @ 230 VAC / 0.25 A @ 277 VAC
• Inrush current (typ.): cold start, 50 A @ 230 VAC (≈270 μs at 50 % I_peak)
• Leakage current: < 0.25 mA @ 277 VAC
• Overload protection: 108 – 130 % of rated output power, hiccup mode, auto recovery
• Overvoltage protection: Shut down output voltage, re‑power on to recover
• Overtemperature protection: Shut down output voltage, re‑power on to recover
• Short‑circuit protection: Hiccup mode, auto recovery
• Operating temperature (case T_case): −40 °C to +85 °C (see “Output load vs temperature” derating)
• Operating humidity: 20 – 95 % RH, non‑condensing
• Storage temperature / humidity: −40 °C to +80 °C, 10 – 95 % RH
• Temperature coefficient: ± 0.03 % / °C (0 – 50 °C)
• Vibration: 10 – 500 Hz, 5 G, 12 min./cycle, 72 min. along X, Y, Z axes
• Withstand voltage: 3.75 kVAC between input and output
• Isolation resistance: > 100 MΩ @ 500 V DC, 25 °C, 70 % RH
• Safety standards: UL8750 (type “HL”), CSA C22.2 No. 250.13‑12, ENEC EN 61347‑1, EN 61347‑2‑13 (independent), EN 62384, EAC TP TC 004, GB19510.1, GB19510.14; IP67
• EMC emission: EN 55015, EN 61000‑3‑2 Class C (≥60 % load), EN 61000‑3‑3, GB/T 17743, GB17625.1, EAC TP TC 020
• EMC immunity: EN 61000‑4‑2,3,4,5,6,8,11; EN 61547 (light industry level, surge Line–Line 2 kV), EAC TP TC 020
• MTBF (typ.): 2,625,400 h (Telcordia SR‑332, 25 °C) / 226,400 h (MIL‑HDBK‑217F, 25 °C)
• Dimensions (L x W x H): 150 mm x 53 mm x 35 mm
• Weight: approx. 0.49 kg
• Case & protection: fully encapsulated plastic case, IP67, Class II
• No‑load power consumption: < 0.5 W
• Design: constant‑voltage PWM LED driver, Class 2, LPS

Information about the MEAN WELL PWM-40-48

The MEAN WELL PWM‑40‑48 is a 40 W constant‑voltage LED driver with a PWM‑style output at approximately 1.47 kHz, tailored for 48 V LED strips and constant‑voltage lighting systems where color temperature and brightness uniformity across the dimming range are critical. Its PWM output keeps LEDs driven with a constant current pulse shape, helping to maintain consistent visual performance even at low dimming levels.

Delivering typical efficiency up to 90 % and featuring active PFC together with a wide 90–305 V AC input range, the driver supports energy‑efficient, global deployment. The fully encapsulated IP67 housing, wide −40 to +85 °C case temperature rating and strong protection set (short‑circuit, overload, overvoltage and overtemperature with hiccup/shutdown behavior) make the PWM‑40‑48 suitable for dry, damp and wet locations in demanding environments.

Its 3‑in‑1 dimming interface (0–10 V, 10 V PWM signal, resistance) with dim‑to‑off capability provides excellent integration options for lighting control and building automation systems. Combined with broad international safety and EMC approvals, the PWM‑40‑48 is a robust solution for professional 48 V LED strip installations, façade lighting, architectural lighting and industrial LED applications that require high reliability and flexible dimming.