Installation  2 
Series N8700 User’s Guide  23 
Input Connections for 3.3 kW and 5 kW units 
The AC input connector is located on the rear panel. It is a 3-terminal 
wire clamp for 3.3 kW single-phase units, or a 4-terminal wire clamp 
for 3.3 kW and 5 kW 3-phase units. Input voltage and current ratings 
are as follows: 
 
Unit 
Nominal AC 
Input  
Input Current @ 
100% load 
Frequency 
3.3 kW single-phase  190 – 240 VAC  23 – 24 A max.  50/60 Hz 
3.3 kW 3-phase  190 – 240 VAC  13.6 – 14.5 A max.  50/60 Hz 
  380 – 415 VAC  6.8 – 7.2 A max.  50/60 Hz 
5 kW 3- phase  190 – 240 VAC  21 – 22 A max.  50/60 Hz 
  380 – 415 VAC  10.5 – 12 A max.  50/60 Hz 
 
NOTE 
The AC input line voltage rating is permanently built into the unit and cannot 
subsequently be changed. 
Connect the cable to the AC input connector as follows:  
1  Strip the outside insulation of the AC cable approximately 10 cm 
(4 in). Trim the wires so that the green/yellow ground wire is 10 
mm (0.4 in) longer than the other wires. Strip 10 mm (0.4 in) at 
the end of each of the wires. 
2  Unscrew the base of the strain relief from the wire compression 
nut. Place the locknut inside the AC input cover with the flat side 
of the nut against the cover. Insert the base through the outside 
opening of the AC input cover. Screw the base securely onto the 
locknut from the outside. Tighteming torque: 17 ft-lb (23 Nm). 
3  Slide the wire compression nut over the AC cable. Insert the 
stripped wires through the strain relief base until the outer cable 
jacket is flush with the inside edge of the base. Place a wrench on 
the base to keep it from turning. Now tighten the compression 
nut to the base while holding the cable in place. Tightening 
torque: 14 – 16.2 ft-lb (19 – 22 Nm). Refer to the following figure.  
 
has four conductors. 
 
Single-phase cable has 
three conductors.