The Lambda / TDK EMI TCR300S9-2 is an SCR phase-controlled regulated DC power supply delivering 2700 W of output power at 300 V and 9 A. It combines precision voltage and current regulation with low output ripple and soft-start inrush limiting, making it suitable for industrial and commercial applications demanding stable, tightly controlled DC power.
This unit employs SCR phase control for efficient power conversion across a wide AC input range. Output regulation maintains voltage stability within ±0.1% of maximum output voltage over a 100% load change in constant voltage mode, and current stability within ±0.1% of maximum output current in constant current mode. The supply automatically crossovers between constant voltage and constant current operation based on load demand.
Technical Specifications
Output:
• Power: 2700 W at 300 V, 9 A
• Regulation: ±0.1% load regulation (voltage and current modes)
• Temperature Coefficient: 0.02%/°C (voltage set point), 0.03%/°C (current set point)
• Ripple: Low output ripple (phase-to-phase voltage balance dependent)
Input:
• AC Input: 208/220 VAC, 47–63 Hz (190–253 V operating range)
• Phase Balance: ±2% required for ripple specification
• Phase Rotation: Not required
• Soft-Start: Integrated to suppress inrush current
Environmental & Protection:
• Operating Temperature: 0°C to 40°C (continuous duty)
• Storage Temperature: −40°C to +85°C
• RFI/EMI Filtering: Ferrite toroidal chokes with VDE-listed X and Y capacitors
• Thermostat Protection: Safeguards critical circuitry
• Cooling: Fan-cooled with horizontal air ducting
– Key Features
• Automatic constant voltage/constant current crossover
• Soft-start circuit eliminates AC inrush transients
• Internal RFI/EMI filter ensures standards compliance
• Sealed ferrite filtering prevents adjacent equipment heating
• Fast load transient response
– Typical Applications
Industrial power systems, electroplating, anodizing, testing labs, materials processing, and any application requiring stable, precision DC regulation with minimal ripple.
– Compatibility & Integration
TCR Series design integrates into multi-unit systems with standard industrial packaging. Optional 200 V AC input available. External control signals support integration into automated or manual control systems.
