Screw terminals with IP20 finger safe construction are used. The terminals are suitable for field and factory wiring. Use wire that complies with local codes and regulations.
| Wire type | Input screw terminals | Output screw terminals | DC-OK spring-clamp terminals |
|---|---|---|---|
|
Solid wire |
Maximum wire gauge: 6 mm2; 10 AWG |
Maximum wire gauge: 16 mm2; 6 AWG |
Maximum wire gauge: 1.5 mm2; 16 AWG |
|
Recommended tightening torque: 1 N · m; 9 lb. · in. |
Recommended tightening torque: 2.3 N · m; 20.5 lb. · in. |
||
|
Stranded wire |
Maximum wire gauge: 4 mm2; 12 AWG |
Maximum wire gauge: 10 mm2; 8 AWG |
Maximum wire gauge: 1.5 mm2; 16 AWG |
|
Recommended tightening torque: 1 N · m; 9 lb. · in. |
Recommended tightening torque: 2.3 N · m; 20.5 lb. · in. |
The following image shows the connectors and LEDs on the bulk power supply. The labels on the input and output terminals are self-explanatory (Neutral, Line, protective earth, positive (+) and negative (-) output). Additional information about the relay contact, shut down and remote control operations, and the parallel and single use selector follows the image. Refer to the Related information section for information on the LEDs.
The DC OK relay contact monitors the bulk power supply's output voltage. It is synchronized with the DC OK LED.
The shut down feature enables a signal switch or an external voltage to switch the power supply output off. The shutdown occurs immediately; the restart is delayed for up to 350 ms. In a shutdown condition, the output voltage is < 2 VDC and the output power is < 0.5 W. The voltage between different minus pole output terminals must be below 1 VDC when units are connected in parallel. The following image shows the various wiring options. When multiple power supplies are connected in series, only wiring option A with individual signal switches is allowed. Option C requires that the voltage source has current sink capability. Do not use a blocking diode.

Set the jumper to Parallel Use mode when power supplies are connected in parallel to increase the output power. In order to share the load current between the individual power supplies, parallel use regulates the output voltage such that the voltage at no load is approximately 4% higher than at nominal load. A missing jumper is the same as Single Use mode.