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3-4. Input terminal and wire consideration
The Load input terminals are rated at 70A. Please note that the banana plug and spade/hook
connectors provided in the accessory pack have a current rating of 20A. Please be sure to use the
correct connection method if sinking high currents. There are five ways to connect the Device
under Test (DUT) to the Electronic Load as detailed below.
3.4.1
Plug connectors: This is the most popular way to connect the input of electronic load
to the device under test. It is recommended that the load current is less than 20A to
keep within the current rating of the plug. A maximum wire gauge of AWG14 can be
used in this application.
3.4.2
Spade/Hook terminals: The spade terminals provide a good contact to the binding
posts. The spade terminals provided in the accessory pack are rated at 20A. The
maximum wire gauge of AWG10 can be used for this connection method.
3.4.3
Insert the wire into the input terminal: Unscrewing the binding post will reveal a hole.
The wire from the output of the DUT can be pushed into this hole and the binding
post tightened to clamp the wire. The Maximum wire gauge is AWG14.
3.4.4
Both plug connectors and spade terminals:
It is recommended to use this method when input current is greater than 20A or if
long load wires are used between the DUT and the load module.
3.4.5
Both plug connectors and Insert the wire into the input terminal.
It is recommended to use this method when the input current is greater than 20A or
long wires are needed to connect the DUT to the load module.
A major consideration in making the input connection is the wire size. The minimum wire size is
required to prevent overheating and to maintain good regulation. It is recommended that the wires
should be large enough to limit the voltage drop to less than 0.5V per lead.
Fig 3-6 Hook Terminal Y type large size terminal connections
3110 Series Operation Manual 53
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