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 TDR-960-24 Power Supply Output Power: 960 W Output Voltage: 24 V DC Output Current: 40 A Input Voltage Range: Three-Phase 340 – 550 VAC (Dual-phase possible) / 480 – 780 VDC Efficiency: up to 94.5 % Ripple & Noise: ≤ 180 mVp-p Inrush Current: 60 A (Cold Start) Power Factor: PF ≥ 0.88 / 400 VAC at full load Operating Temperature: -30 °C to +70 °C Cooling: Free air convection (fanless) Protection Functions: Short circuit, Overload, Over voltage, Over temperature DC OK Signal: Built-in relay contact Isolation Voltage: 3000 V AC between Input and Output Dimensions (W x H x D): 110 mm x 125.2 mm x 150 mm Weight: 2.47 kg Safety & EMC Certificates: UL508, AS/NZS62368.1, EAC, IEC62368-1 CB, EN55032 Installation: DIN Rail TS-35/7.5 or 15 Manufacturer Warranty: 3 Years Information about the MEAN WELL TDR-960-24 The MEAN WELL TDR-960-24 represents a high-performance solution for demanding three-phase industrial environments requiring substantial power in a compact 110mm width design. This 960W unit is engineered with active PFC function compliance and an outstanding efficiency rating of 94.5%, which significantly reduces power dissipation and heat generation within the control cabinet. Its ability to operate under dual-phase conditions provides essential redundancy and flexibility in electrical environments where a phase might be unstable or lost, ensuring that critical industrial processes remain powered and operational without immediate shutdown. Equipped with advanced current sharing capabilities, the TDR-960-24 allows for parallel connection of up to four units to reach a total output of 3840W, making it highly scalable for heavy-duty machinery and large-scale automation systems. The built-in constant current limiting circuit and the DC OK relay contact provide sophisticated monitoring and protection, allowing for seamless integration into PLC-controlled environments. Its robust metal housing and fanless free air convection cooling system ensure long-term reliability and a high MTBF, even when subjected to the heavy industry immunity levels required by modern manufacturing standards.

Technical Information & Details for the MEAN WELL WDR-120-24 Power Supply Output Power: 120 W Output Voltage: 24 V DC Output Current: 5 A Input Voltage Range: 180 – 550 V AC / 254 – 780 V DC, 47 – 63 Hz Efficiency: up to 91 % Ripple & Noise: ≤ 120 mVp-p Inrush Current: max. 50 A (Cold Start) Operating Temperature: -25 °C to +70 °C Cooling: free air convection Protection Functions: Short circuit, Overload, Over voltage, Over temperature Isolation Voltage: 3000 V AC between input and output Dimensions (H x B x T): 125.2 mm x 40 mm x 113.5 mm Weight: approx. 650 g Safety & EMC Certificates: UL508, IEC62368-1, EAC, BS EN/EN61000-6-2 DC OK Signal: Relay contact rating 30V/1A resistive Manufacturer Warranty: 3 years Information about the MEAN WELL WDR-120-24 The MEAN WELL WDR-120-24 is a specialized industrial power supply designed to provide a stable 24V DC output at 5A, specifically engineered for environments with high-voltage supply lines. Its primary strength lies in the ultra-wide input range, which allows the unit to operate reliably on either single-phase or two-phase electrical systems between 180 and 550V AC. This versatility is critical for industrial applications where a neutral wire may not be available or where voltage stability is inconsistent. With a peak efficiency of 91%, the WDR-120-24 minimizes thermal loss, allowing it to function effectively using only natural air convection within its compact 40mm wide chassis. Safety and system monitoring are heavily prioritized in this model, featuring a built-in DC OK relay contact that provides an automated signal for remote status tracking. The unit is equipped with advanced constant current limiting circuits and a robust protection suite that handles overloads, overvoltage, and thermal spikes with automatic recovery. Meeting heavy industrial immunity levels and UL508 standards, this power supply is an ideal choice for industrial control systems, semiconductor fabrication, and factory automation. The rugged design ensures a long service life, backed by a 3-year manufacturer warranty and a high MTBF, making it a dependable component for critical 24V infrastructure.

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.

Technical Information & Details for the MEAN WELL TDR-240-24 Power Supply Output Power: 240 W Output Voltage: 24 V DC Output Current: 10 A Input Voltage Range: Three-Phase 340 – 550 V AC (Dual-phase operation possible) / 480 – 780 V DC, 47 – 63 Hz Efficiency: 92% Ripple & Noise: 150 mVp-p Inrush Current: Cold start 50 A No-load Power Consumption: Not specified (Built-in passive PFC function) Operating Temperature: −30 °C to +70 °C Cooling: Fanless free air convection Protections: Short circuit, Overload (Constant current limiting), Over voltage, Over temperature Overvoltage Category: OVC III Isolation Voltage: 4.87 KV AC between Input and Output Dimensions (H x W x D): 125.2 mm x 63 mm x 113.5 mm Weight: 1000 g Safety & EMC Certificates: UL61010, BS EN/EN61558, EAC TP TC 004, CE, AS/NZS61558 LED Indicator: DC OK status indicator with relay contact Manufacturer Warranty: 3 Years Information about the MEAN WELL TDR-240-24 The MEAN WELL TDR-240-24 is a high-performance three-phase industrial DIN rail power supply engineered to deliver 240W of reliable power in a remarkably slim 63mm housing. This space-saving design is critical for modern control cabinets where rail density is a priority. One of its most versatile features is the wide-range three-phase input of 340 to 550 V AC, which also supports dual-phase operation, providing essential redundancy and flexibility for various global electrical grids. With an efficiency rating of 92% and a rugged metal casing, the unit minimizes heat dissipation and operates effectively under free air convection across a temperature range of -30 °C to +70 °C, ensuring longevity even in harsh environments. Equipped with advanced functional features, the TDR-240-24 includes a built-in passive PFC function to comply with harmonic current regulations and a DC OK relay contact for seamless integration into automated monitoring systems. The unit utilizes a constant current limiting circuit for overload protection, making it an ideal choice for powering inductive or capacitive loads found in semiconductor fabrication, factory automation, and electromechanical apparatus. Furthermore, its compliance with UL61010 and Overvoltage Category III (OVC III) standards ensures superior protection against line surges, making it a highly competitive and secure solution for mission-critical industrial applications and high-altitude operations up to 5000 meters.

Discontinued Product see replacement: TDR-240