American Power Conversion 240-320kW Terminals Input Battery Output System earth Type, Stud size

External Connection

4.1.6 Connection Terminals

Terminals – 480V

Terminal	Input	Battery	Output	PE	System earth
Type	stud size	stud size	stud size	stud size	stud size
240kW	M12	M12	M12	M10	M12
320kW	M12	M12	M12	M10	M12

The terminals for the control & alarm cables are screw clamps for cable size AWG18 to AWG14. All other terminals are stud terminals.

4.1.7 Torque Specifications

Stud size

M6

M8

M10

M12

Torque

66/7.5 lb-in/Nm

133/15 lb-in/Nm

266/30 lb-in/Nm

443/50 lb-in/Nm

4.1.8 Grounding

4.1.8.1 System Grounding

If no UPS neutral inputs are connected to a grounded service neutral conductor according to local NEC code reguirements, provisions must be made as follows:

a)Bonding jumper must be mounted between output terminals X005:N and X005:E

b)Output terminal X500:E, marked “Grounding electrode terminal”, must be connected by grounding electrode conductor to a local grounding electrode according to NEC 250-26

4.1.8.2 Equipment Grounding

Terminals marked intended for equipment grounding.

Provisions must be made as follows:

Input equipment ground terminal(s) must be connected to grounding electrode(s) provided for the service entrance(s)

990-4049

22 Installation Guide APC Silcon 240-320kW 480V UPS