Keithley 2260B-800-4 – Programmable DC Power Supply, 800V, 4.32A, 1080W

The Keithley 2260B-800-4 is a 1080W programmable DC power supply engineered for precision testing in research, development, and manufacturing environments. It delivers up to 800V at 4.32A with output voltage and current programming accuracy of ± (0.1% + 200 mV) and ± (0.1% + 200 mA) respectively. The supply features programmable voltage and current rise/fall times (0.1V/s to 1600V/s voltage slew rate; 0.001 A/s to 216A/s current slew rate) to protect low impedance loads from inrush damage. A constant current priority setting minimizes overshoot when driving LEDs, while programmable internal resistance enables battery simulation. Output ripple and noise measures 60 mV peak-to-peak or 7 mV RMS in constant voltage mode, with line regulation of 18 mV and load regulation of 20 mV. Overvoltage protection spans 20V to 880V (± 2% accuracy); overcurrent protection ranges 0.288A to 3.168A (± 2% accuracy). The single-output unit measures 214mm wide and integrates into standard rack installations.

## Technical Specifications

• **Output Power:** 1080W
• **Output Voltage:** 0–800V (programming accuracy ± 0.1% + 200 mV; measurement accuracy ± 0.1% + 200 mV)
• **Output Current:** 0–4.32A (programming accuracy ± 0.1% + 200 mA; measurement accuracy ± 0.1% + 200 mA)
• **Voltage Slew Rate:** 0.1V/s to 1600V/s
• **Current Slew Rate:** 0.001 A/s to 216A/s
• **Temperature Coefficient:** 100 ppm/°C of rated output voltage (post 30-minute warm-up)
• **Line Regulation (CV Mode):** 18 mV (85–132 VAC or 170–265 VAC)
• **Load Regulation (CV Mode):** 20 mV
• **Ripple & Noise (Peak-to-Peak):** 60 mV
• **Ripple & Noise (RMS):** 7 mV
• **OVP Range:** 20V to 880V (± 2% rated output voltage)
• **OCP Range:** 0.288A to 3.168A (± 2% rated output voltage)

## Key Features

• Programmable internal resistance for battery output simulation
• Constant current priority mode for LED load protection
• Overtemperature and AC-fail protection with output shutdown
• Analog control via 26-pin MIL connector (OMRON XG4 IDC plug)
• Rack-mountable 214mm width (two units per standard rack)

## Compatibility & Integration

• USB (CDC emulation, dual COM port interfaces)
• Gigabit Ethernet for remote control and digital monitoring
• Optional GPIB interface
• External analog voltage and resistance control capability