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1600XP Series Installation and Operation Manual
8.2 EPO and Remote Shutdown
EPO (Emergency Power Off): TB1-14, -15
The EPO is a NO (Normally Open) dry contact switch. When the EPO is closed, the Input circuit break-
er to the UPS opens and all power to the unit is removed, including backup power from the batteries.
Remote Shutdown: TB1-16, -17
The Remote Shutdown is a NO (Normally Open) dry contact switch. When the Remote Shutdown
switch is closed, the UPS transfers from Normal/Backup to Bypass after a 1-2 sec. detection delay.
(See the diagram below)
When the closed Remote Shutdown switch is opened, the UPS transfers from Bypass back to it’s initial
state (Normal/Backup) after a 1-2 sec. detection delay.
If the UPS is in bypass when the Remote Shutdown is closed, no action is taken.
8.3 Cable Size and Tightening Torque
Use the following table to select the recommended wire size and terminal lug tightening torque for I/O
wire connections. Use 90 °C copper conductors for all Input, Output, and Ground wiring.
Item
Terminal
Number
Cable Size - AWG
Tightening
Torque
lb.-in. (N•m)
3.6 kVA 6 kVA 8 kVA 10 kVA 14-18 kVA 22 kVA
AC Input Lines 1 and 2 10 (8) 8 (8)
8 (1/0) 6 (1/0)
4 (1/0) 1 (1/0) 14.2 (1.56)
AC Output Lines 4, 5, and 7 12 (8) 10 (8)
8 (1/0) 6 (1/0)
4 (1/0) 1 (1/0) 14.2 (1.56)
AC Output Neutral 6 12 (8) 10 (8)
8 (1/0) 6 (1/0) 4 (1/0))
1 (1/0) 14.2 (1.56)
Ground 3 and 8 12 (8) 10 (8)
8 (1/0) 6 (1/0) 4 (1/0))
1 (1/0) 14.2 (1.56)
EPO Switch 14 and 15 16 16 16 16 16 16 9.0 (0.99)
Remote Switch 16 and 17 16 16 16 16 16 16 9.0 (0.99)
Note: Wire size is presented as the recommended size followed by a bold number in () indicating the maximum wire
size the terminal block can accommodate. See Appendix C for knock-out hole sizes on the back of each model.
8.4 Battery Cabinet Connections
Optional external battery cabinets can be used to extend the backup time of the UPS beyond that
available with the internal batteries. The external battery cabinets connect to the UPS via Anderson-
style connectors. See Section 20.
Detection Delay
1-2 Sec.
Detection Delay
1-2 Sec.
Remote Status
Switch
Normal / Backup Mode
Closed
Open
Bypass Mode
UPS Mode
FIGURE 8.2-1 REMOTE STATUS SHUTDOWN TIMING