TSI Power Corporation MC80023,4,5,6,7,8,9,30
ATS-500 Series Automatic Transfer Switches Rev. 7, September, 2019
TSI Power Corporation Proprietary Information
17
For units w/20 A Circuit Breakers use minimum 12 AWG (4mm²) wire [preferably 10
AWG (6mm²)]
For units w/30 A Circuit Breakers use minimum 10 AWG (6mm²) wire [preferably 8
AWG (10mm²)]
For units w/40 A Circuit Breakers use minimum 8 AWG (10mm²) wire
For both power and earth conductors, TSi Power also recommends using stranded
copper wire with a 105 °C insulation system.
3.64 Allow for sufficient wire length to reach the wiring terminals and leave enough
slack to reduce the stress in the wires. Note: Two wires plus ground are required
for primary and backup input and ATS output.
3.65 Strip approximately 3/8" (10 mm) insulation from the end of each of the three (3)
sets of wires and terminate them in the wiring terminals as follows.
3.66 Using a slotted screwdriver, terminate the incoming primary wires on the terminal
blocks behind the rear cover marked “Primary Input”. These terminals are marked
as follows:
•
LI for primary input line (or L1in for primary input phase 1)
•
NI for primary input neutral (or L2in for primary input phase 2)
•
PE for primary input protective earth (European systems); G for primary input earth
ground (North-American systems)
3.67 Using a slotted screwdriver, terminate the incoming backup wires on the terminal
blocks behind the rear cover marked “Backup Input”. These terminals are marked
as follows:
•
LI for backup input line (or L1in for backup input phase 1)
•
NI for backup input neutral (or L2in for backup input phase 2)
•
PE for backup input protective earth (European systems); G for backup input earth
ground (North-American systems)
3.68 Using a slotted screwdriver, terminate the outgoing wires on the terminal blocks
behind the rear cover marked “AC Output”. These terminals are marked as follows:
•
LO for AC output (or L1out for AC output phase 1)
•
NO for AC neutral output (or L2out for AC output phase 2)
•
PE for output protective earth (European systems); G for output earth ground
(North-American systems)
