Protect the system with a 7.2-ampere (A) minimum to 20-A maximum protective device or a 25-A maximum protective device when used with 90ºC wire. Connect the system to a –48 VDC supply source that is electrically isolated from the AC source. Ensure that the –48 VDC source is efficiently secured to earth (ground).
#6-32 nut equipped with a lock washer that you removed in step 1 (see Figure 1-1). NOTE: If your system is equipped with redundant –48 VDC power supplies, you must connect both safety ground wires to the grounding post on the back of the system.
C o n n e c t o r H o u s i n g P i n A s s i g n m e n t s Description –48 VDC –48 VDC return Wire Color and Size Black 14 AWG Red 14 AWG Cabling Instr u ctions for the –48 VDC...