RS PRO Bench Power Supply, 13.5V dc, 4A, 1-Output - RS Calibrated

Designed to power a wide range of equipment
Output nominally 13.5Vdc at up to 4A or 27Vdc at up to 2A but these voltages may be trimmed by +3.7% to -18.5% using the internal preset potentiometer (e.g. the 13.5V version may be set to 12Vdc output)
Each unit features fold-back over current and short circuit protection and an overvoltage crowbar that blows an internal fuse if the voltage exceeds 16V for the 13.5V unit or 32V for the 27V unit
Output connections are via 4 mm insulated screw terminals
Supply 240Vac 50Hz via 3-core 1.5m mains lead without a plug

These power supplies are not supplied with a mains plug