The Lambda/TDK GEN 1250-12 is a 1250 Vdc, 12 A programmable DC power supply rated at 15 kW output power. Built on the Genesys™ platform, this 3U rack-mount unit delivers 93.5% typical efficiency with low noise performance across industrial, laboratory, and OEM applications. The supply operates from three-phase AC input (342–528 Vac, 47–63 Hz depending on configuration) and features constant voltage/constant current auto-crossover topology with adjustable overvoltage protection, undervoltage limiting, and current foldback.
## Technical Specifications
• **Output:** 0–1250 Vdc at 0–12 A (15 kW rated)
• **Voltage Ripple:** 0.12 Vrms (5 Hz to 1 MHz)
• **Current Ripple:** 0.006 Arms (5 Hz to 1 MHz)
• **Efficiency:** 93.5% typical
• **Input:** Three-phase AC, 342–528 Vac, 47–63 Hz (voltage range depends on part number variant)
• **Operating Temperature:** 0 to 50°C
• **Dimensions:** 429 mm W × 132.5 mm H × 581 mm D (3U)
• **Weight:** 32 kg typical
## Key Features
• Adjustable OVP, UVL, and current foldback protection
• Remote ON/OFF and Enable/Disable control
• Last setting memory with safe restart function
• Front-panel encoder control with 4-digit LED meters
• Parallel operation: up to four units supported with active current sharing
• Analog programming: selectable 0–5 V or 0–10 V
## Compatibility & Integration
• **Standard Interfaces:** RS-232, RS-485 (multi-drop control up to 31 units via daisy chain)
• **Optional Interfaces:** LAN (LXI compliant), USB, GPIB (IEEE 488.2 SCPI), isolated analog voltage/current control
• **Certifications:** EN60950-1, UL60950-1
• **Compliance:** RoHS
## Typical Applications
High-voltage DC power for test benches, industrial power conversion systems, OEM equipment, and laboratory research requiring stable, programmable regulation with multiple control and communication options.
