Technical Information & Details for the MEAN WELL NDR‑120‑24 Power Supply Output Power: 120 W Output Voltage: 24 V DC Output Current: 5 A Input Voltage Range: 90 – 264 V AC / 127 – 370 V DC, 47 – 63 Hz Efficiency: up to 88 % Ripple & Noise: ≤ 150 mVp-p Inrush Current: max. 20 A @115 VAC / 40 A @230 VAC No-Load Power Consumption: < 0.75 W Operating Temperature: −20 °C to +70 °C Cooling: fanless natural convection Protection Features: short-circuit, overload, overvoltage, overtemperature Overvoltage Category: OVC II Isolation Voltage: 3000 V AC between input and output Dimensions (H x W x D): 125.2 mm x 40 mm x 113.5 mm Weight: approx. 670 g Safety & EMC Certificates: CE, UL 508, TUV, CB, EAC LED Indicator: Power On Indicator Manufacturer Warranty: 3 years About the MEAN WELL NDR-120-24 The MEAN WELL NDR-120-24 is a powerful DIN-rail industrial power supply delivering 120 W with stable 24 V DC / 5 A output. It excels with superior efficiency up to 88 %, fanless natural convection cooling for silent operation, and a ultra-narrow 40 mm metal housing. Comprehensive protection features (short-circuit, overload, overvoltage, overtemperature) with automatic recovery ensure maximum operational safety. Ideal for PLC controls, industrial automation, sensor networks, and building management systems – the universal 90–264 V AC input range enables global deployment. With international certifications, the NDR-120-24 provides optimal energy efficiency, durability, and space savings in demanding industrial environments.

Technical Information & Details for the MEAN WELL NDR-240-24 Power Supply Output Power: 240 W Output Voltage: 24 V DC Output Current: 10 A Input Voltage Range: 90 – 264 V AC / 127 – 370 V DC, 47 – 63 Hz Efficiency: up to 89 % Ripple & Noise: ≤ 150 mVp-p Inrush Current: max. 45 A @230 VAC No-Load Power Consumption: < 0.5 W Operating Temperature: −20 °C to +70 °C Cooling: fanless natural convection Protection Features: short-circuit, overload, overvoltage, overtemperature Overvoltage Category: OVC II Isolation Voltage: 3000 V AC between input and output Dimensions (H x W x D): 125.2 mm x 63 mm x 113.5 mm Weight: approx. 1.2 kg Safety & EMC Certificates: CE, UL 508, TUV, CB, EAC LED Indicator: Power On Indicator Manufacturer Warranty: 3 years About the MEAN WELL NDR-240-24 The MEAN WELL NDR-240-24 is a high-power 240 W DIN-rail power supply with built-in active PFC for maximum efficiency and stability at 24 V DC / 10 A output. It excels with excellent efficiency up to 89 %, completely fanless convection cooling, and rugged metal housing for demanding industrial environments. Full protection features with constant current mode and automatic recovery ensure maximum operational safety against short-circuit, overload, and overvoltage. The universal 90–264 V AC input range makes it ideal for large PLC systems, machine building, plant control, and industrial automation. With international certifications, the NDR-240-24 offers high power density, extreme durability, and perfect integration into professional control cabinets.

24V/40A DIN Rail Type Buffer Module Buffer mode selectable by switch: 1.) Fixed mode at 22Vdc   2.) Dynamic mode for Vin-1Vdc Supports parallel connection to extend buffering time Charging Voltage 23-30VDC, 900mA max.    

Technical Information & Details about the MEAN WELL HDR-30-24 Power Supply Output Power: 36 W Output Voltage: 24 V DC Output Current: 1.5 A Current Range: 0 – 1.5 A Input Voltage Range: 85 – 264 V AC (277 V AC operational) / 120 – 370 V DC (390 V DC operational), 47 – 63 Hz Efficiency: up to 89 % Ripple & Noise: ≤ 150 mVp-p Output Voltage Adjustment Range: 21.6 – 29 V DC Voltage Tolerance: ±1.0 % Line Regulation: ±1.0 % Load Regulation: ±1.0 % Setup, Rise Time: 500 ms, 50 ms @230 V AC / 115 V AC (full load) Hold-up Time: 30 ms @230 V AC / 12 ms @115 V AC (full load) Inrush Current: 25 A @115 V AC / 45 A @230 V AC (cold start) No-load Power Consumption: < 0.3 W Operating Temperature: −30 °C to +70 °C (with derating according to curve) Cooling: fanless free air convection Protection Functions: short circuit (hiccup mode, auto recovery), overload (constant current limiting 50–100 % of rated output voltage, auto recovery), overvoltage (shut down, re‑power to recover) Overvoltage Category: OVC III (up to 2000 m altitude) Isolation Voltage: 4000 V AC between input and output Isolation Resistance: ≥ 100 MΩ @ 500 V DC, 25 °C, 70 % RH Dimensions (W x H x D): 35 mm x 90 mm x 54.5 mm Weight: approx. 130 g Housing Material: insulating plastic, Class II Mounting: DIN rail TS35/7.5 or TS35/15 Safety & EMC Certifications: UL 62368-1, UL 508, TUV BS EN/EN 61558-2-16, BS EN/EN 61558-1, IEC 62368-1, EAC TP TC 004, BSMI, BIS IS13252, compliant with BS EN/EN 55032, BS EN/EN 55035, BS EN/EN 61000-6-2, BS EN/EN 61204-3 LED Indicator: Power On LED indicator Manufacturer Warranty: 3 years About the MEAN WELL HDR-30-24 The MEAN WELL HDR-30-24 is a 30 W ultra-slim DIN-rail power supply that provides a stable 24 V DC / 1.5 A output in a narrow 35 mm (2 SU) housing, ideal for compact distribution boards and space-saving control cabinets. With its wide 85–264 V AC / 120–370 V DC input range and high efficiency up to 89 %, it offers an energy-efficient 24 V control voltage source for building automation, home automation, and light industrial control systems. The adjustable 21.6–29 V output range allows precise tuning of the 24 V bus to compensate for voltage drops across wiring runs and to supply PLCs, sensors, relays, and I/O modules with reliable power. Its Class II plastic enclosure provides double insulation for enhanced user safety and simplifies installation by eliminating the need for a protective earth connection. Fanless free air convection, very low no-load power consumption below 0.3 W, a wide operating temperature range from −30 °C to +70 °C, and comprehensive protection and certification features make the HDR-30-24 a robust, long-life 24 V power solution for household and industrial automation applications.

Technical Information & Details for the MEAN WELL MDR-40-24 Power Supply Output Power: 40.8 W Output Voltage: 24 V DC Output Current: 1.7 A Input Voltage Range: 85 – 264 V AC / 120 – 370 V DC, 47 – 63 Hz Efficiency: 88% Ripple & Noise: ≤ 150 mVp-p Inrush Current: Cold Start 30 A @ 115 VAC / 60 A @ 230 VAC No-load Power Consumption: < 0.75 W Operating Temperature: −20 °C to +70 °C Cooling: Free air convection (fanless) Protections: Short circuit, Overload (constant current limiting), Over voltage Special Features: DC OK relay contact, LED status indicator, Adjustable output voltage Isolation Voltage: 3000 V AC (I/P-O/P) Dimensions (W x H x D): 40 mm x 90 mm x 100 mm Weight: 0.3 kg Safety & EMC Certificates: UL508, UL62368-1, TUV, Class I Div 2 (HazLoc), CE, EAC Manufacturer Warranty: 3 Years Information about the MEAN WELL MDR-40-24 The MEAN WELL MDR-40-24 is a robust 40.8W industrial DIN rail power supply engineered for precision automation and critical control systems. A key differentiator for this unit is the integrated DC OK relay contact, which provides a hardware-level signal for remote monitoring of the power state, ensuring system integrity and facilitating rapid troubleshooting. The device utilizes constant current limiting for overload protection, which allows for stable operation even with temporary peak loads and ensures automatic recovery once fault conditions are cleared. Specifically designed for demanding environments, it holds Class I, Division 2 hazardous location certification, making it suitable for chemical, oil, and gas applications. With a focus on energy conservation, the MDR-40-24 boasts a no-load power consumption of under 0.75W and high 88% efficiency. Its ultra-slim 40mm design maximizes rail space, while the universal wide-range input and 100% full load burn-in testing guarantee global compatibility and long-term durability in professional setups.

Technical Information & Details of the MEAN WELL NDR-480-24 Power Supply Output Power: 480 W Output Voltage: 24 V DC Output Current: 20 A Input Voltage Range: 90 – 264 V AC / 127 – 370 V DC, 47 – 63 Hz Efficiency: up to 92.5 % Ripple & Noise: ≤ 150 mVp-p Inrush Current: max. 60 A @115 VAC / 60 A @230 VAC No-load Power Consumption: < 0.75 W Operating Temperature: −20 °C to +70 °C Cooling: fanless natural convection Protection Features: Short-circuit, Overload, Overvoltage, Overtemperature Overvoltage Category: OVC II Isolation Voltage: 3000 V AC between input and output Dimensions (H x W x D): 125.2 mm x 85.5 mm x 128.5 mm Weight: approx. 1.8 kg Safety & EMC Certificates: CE, UL 508, TUV, CB, EAC LED Indicator: Power On status indicator Manufacturer Warranty: 3 years Information about the MEAN WELL NDR-480-24 The MEAN WELL NDR-480-24 is a high-performance DIN rail power supply with 480 W and stable 24 V DC / 20 A output voltage. It excels with excellent efficiency up to 92.5 %, fanless convection cooling for silent operation, and a powerful aluminum housing design. The comprehensive protection features (short-circuit, overload, overvoltage, and overtemperature protection) with automatic recovery ensure maximum operational safety. Perfect for PLC controls, heavy industrial automation, conveyor systems, and machine building – the universal input voltage range 90–264 V AC enables worldwide deployment. With international certifications, the NDR-480-24 offers maximum energy efficiency, durability, and reliability in demanding industrial environments.