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 & Output
• 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.
