Technical Information & Details for MEAN WELL NPF-40D-42 Power Supply
- Output Power: 40.32 W
- Output Voltage: 42 V DC (Constant Current Region: 25.2 – 42 V)
- Output Current: 0.96 A
- Input Voltage Range: 90 – 305 V AC / 127 – 431 V DC, 47 – 63 Hz
- Efficiency: 90%
- Current Ripple: 5.0% max. @ rated current
- Inrush Current: Cold start 50 A / 230 V AC
- No-Load Power Consumption: < 0.5 W (Standby)
- Operating Temperature: −40 °C to +85 °C (Case temperature Tcase)
- Cooling: Fanless free air convection
- Protections: Short circuit, Overload (Constant current limiting), Over voltage, Over temperature
- Ingress Protection: IP67
- Isolation Voltage: 3750 V AC (Input/Output)
- Dimensions (H x W x D): 35 mm x 53 mm x 150 mm
- Weight: approx. 490 g
- Safety & EMC Certifications: UL8750 (Type HL), CSA C22.2, ENEC EN61347-1, EN61347-2-13, IP67, BS EN/EN55015
- Dimming Function: 3-in-1 dimming (0–10VDC, 10V PWM signal, resistance; dim-to-off)
- Manufacturer Warranty: 5 years
Information about MEAN WELL NPF-40D-42
Built to withstand demanding environmental challenges, the MEAN WELL NPF-40D-42 LED driver delivers continuous constant current output with exceptional efficiency. Featuring a robust IP67 rating, the potted Class II housing insulates internal components against dust and moisture across extreme operating temperatures from −40 °C up to +85 °C Tcase. Advanced lighting control is seamlessly managed via built-in 3-in-1 dimming supporting analog voltage, PWM, or resistance control with complete dim-to-off capability. Safety is ensured with UL8750 Type HL approval for hazardous environments, while an extended 5-year warranty provides peace of mind for high-end architectural, commercial, and industrial LED fixtures.