Lambda / TDK / EMI LRS 58-24

The Lambda TDK LRS 58-24 is an enclosed, convection-cooled DC power supply delivering 24 Vdc at up to 44 A (1440 W) from universal AC or DC input. Built for industrial and electronic applications requiring high reliability, tight regulation, and low noise in demanding environments, this supply operates continuously from −10°C to +71°C and meets multiple military and safety certifications.

Technical Specifications

• Input voltage: User-selectable 95–132 VAC or 187–265 VAC, 47–440 Hz; DC input 145 Vdc ±10%


• Output voltage: 24 Vdc nominal, ±5% tolerance


• Maximum output current: 44 A (currents 10–15% higher without cover)


• Maximum output power: 1440 W at 24 V Performance


• Minimum efficiency: 80%


• Line regulation: 0.1% (low to high line)


• Load regulation: 0.1% (no load to full load)


• Output ripple and noise: 15 mV RMS, 100 mV peak-to-peak (20 MHz bandwidth)


• Remote sensing provision to eliminate lead resistance effects Protection & Control


• Overvoltage protection: Standard (AC recycle required for reset)


• Overload protection: Automatic electronic self-resetting current limiting


• Inrush current: Limited during cold start Environmental


• Operating temperature: −10°C to +71°C continuous (derating above 40°C); guaranteed turn-on at −20°C


• Storage temperature: −55°C to +85°C


• Conducted EMI: FCC Docket 20780 Class A; MIL-STD-461A Notice 4 CE04; VDE 0871 Class A


• Environmental qualification: MIL-STD-810C (low/high temperature, shock, vibration, humidity, fungus, pressure-altitude)

Key Features

• Convection cooled - no fans or blowers required


• UL Recognized, CSA Certified, TUV Licensed


• Barrier strip input terminals; heavy-duty threaded bus bars for output


• Tapped mounting holes; customer-provided clearance around vent holes required

Typical Applications Industrial automation, test systems, instrumentation, and distributed power where stable 24 V rails and high current capacity are essential.

Compatibility & Integration Dual-input design accommodates both standard 120/240 VAC facilities and 145 Vdc sources. Remote sensing terminals enable precision voltage regulation across extended distribution networks.