RS PL320(Quad)

The RS PL320(Quad) is a bench power supply from Thurlby Thandar Instruments delivering 0 to 32V continuously variable output at 0 to 2A, with up to 240W power capability. This single-output model provides precision metering, exceptional load and line regulation, and minimal ripple - making it ideal for laboratory, development, and production test environments requiring stable DC power delivery.

Technical Specifications

• Output voltage: 0 to 32V continuously variable


• Output current: 0 to 2A


• Maximum power output: 240W


• Load regulation: <0.01% of maximum output (90% load change)


• Line regulation: <0.01% of maximum output (10% line voltage change)


• Ripple and noise: Typically <1mV rms


• Output impedance (constant voltage): Typically <5mΩ at 1kHz


• Output impedance (constant current): Typically 50kΩ


• Output protection: Forward protection to maximum output voltage +20V; diode-clamped reverse protection rated to 3A reverse current


• AC input: 110, 120, 220, or 240VAC ±10%, 50/60Hz Metering


• Dual 3.75 digit LED displays (4095 count resolution)


• Voltage resolution: 10mV


• Current resolution: 1mA


• Display update rate: 4 per second


• Switchable damping for fluctuating currents Physical Specifications


• Dimensions: 170mm (H) × 155mm (W) × 265mm (D)


• Weight: 5.0kg


• Cooling: Silent fan-less convection design


• Output terminals: 4mm binding posts (accepts plugs or wire)

Key Features

• Single output configuration with optional quad-mode dual or triple output variants (PL320QMD, PL320QMT)


• Quad-mode selection (Isolated, Parallel, Series, Series-Tracking) via push-button switching on dual variants


• Parallel mode increases current output; Series mode increases voltage output


• GPIB (IEEE-488.1/488.2) and RS-232 programming options available on PL-P models


• Full remote bus control with voltage and current readback

Typical Applications Laboratory test and measurement; prototype development; educational electronics training; production circuit testing; precision equipment calibration.

Compatibility & Integration Operating temperature: 5°C to 40°C, 20% to 80% RH. Storage: -20°C to 60°C. Compliant with IEC348 and IEC1010 safety standards; EMC compliance per EN50081–1 and EN50082–1 (variant dependent).