UPS System Installation4-16 Eaton 93PM Emergency Lighting UPS (20–40 kW, 480V Four Wire – UL 924) Installation and Operation Manual P-164000569—Rev 2 www.eaton.com/powerqualityFigure 4-14. Relay Contact Terminal Block Connector Assignments4.7.2 Installing Battery Detect and Shunt Trip Interface ConnectionsTo install wiring:1. Verify the UPS system is turned off and all power sources are removed. See Chapter 6, “UPS OperatingInstructions,“ for shutdown instructions.2. If not already opened, open the front door by lifting the latch from the bottom and turning to the right(counterclockwise) and swing the door open.3. If not already removed, remove the screws securing the lower internal safety shield panel and remove thepanel. Retain the hardware for later use.4. If wiring the battery detect and shunt trip connections using the inter-cabinet wiring access pass-through(line-up-and-match configurations), proceed to Step 5; if wiring the battery detect and shunt tripconnections using bottom entry access, proceed to Step 7; if wiring the battery detect and shunt tripconnections using top entry access, proceed to Step 9.5. Pass-through Wiring. Route the battery detect and shunt trip wiring from the battery cabinet through thebottom UPS inter-cabinet wiring access pass-through to the UPS battery detect and shunt trip terminals.See Figure 4-6 for UPS wiring access information, and Figure 4-15 for UPS terminal locations. Refer to theEaton 93PM Integrated Battery Cabinet Installation Manual-Large and Large High Rate, the Eaton 93PMUniversal Integrated Battery Cabinet Installation Manual-Large and Large High Rate, or the Eaton 93PMIntegrated Battery Cabinet Installation Manual-Small, listed in paragraph 1.8, for battery cabinet wiringaccess information and instructions.6. Proceed to Step 10.Table 4-2. Relay Contact Connections and Wire TerminationsTerminal Name DescriptionRecommendedWire SizeSize of PressureTermination Tightening Torque1 Relay Contact NC Output: General purpose normally-closed (NC)relay contact.Twisted Pair Wires#18 AWG #1430 AWG 2 lb in(0.22-0.25 Nm)3 Relay Contact Common2 Relay Contact NO Output: General purpose normally-open (NO) relaycontact.Twisted Pair Wires#18 AWG #1430 AWG 2 lb in(0.22-0.25 Nm)3 Relay Contact CommonNOTE 1 If installing interface wiring connections between standalone cabinets, conduitmust be installed between cabinets.NOTE 2 Disconnect terminal block plugs from terminal blocks to wire plugs.NOTE 3 Use wire rated for 600V and Class 1 wiring methods.UPS Relay Output1 2 3NO_OutNC_OutCom