Tech Tips

Wiring and Operation

Connection of load

  • Please use a short lead wire that is sufficiently thick for the connection.
  • Please use PVC electric cable (105°C) that can fully tolerate the voltage used. It is necessary to consider current carrying capacity, length limit of output wire by sensing (0.5 V/lead), and so on for wiring with the load. Please refer to the following diagram to determine the thickness of the cable.
Table1: American wire gauge cable / conductor and maximum current
AWG mm2 Max current (A)
18 0.823 2.3
16 1.31 3.7
14 2.08 5.9
12 3.31 9.3
10 5.26 15
8 8.37 24
6 13.3 37
4 21.1 60
2 33.6 94
1 42.4 119
1/0 53.5 150
2/0 67.4 190
3/0 85.0 239
4/0 107 302

Use several cables or copper bar for model over 302 A.

Parallel connection of load


connection of good example


connection of bad example
connection of bad example

A power supply has no direct branching, but the load is branched using cables.

Specifications Definitions

The following definitions shall basically take precedence. In case there is any specific definition described in other parts of the brochure, the definition has higher priority than the following ones. The specification in this brochure indicates the value at rated power output (full scale) shown after a two-hour warm up.

Scope of Specifications

The following specifications are applied within a range of 10 to 100% of the rated output.

  • Ripple
  • Stability
  • Variations
  • Temperature coefficient
  • Linearity of output
  • Linearity of monitor
  • Linearity of indications
Scope of Specifications


Displays rms including high-frequency noise.


The preset value does not accurately show the actual status of output. When accurate setting is required, actually output with no load and set the voltage. Also, set the current setting to the desired value by outputting with the output terminal shorted and gradually increasing current.