Emerson 48330 user manual External Electrical Connection Interface, Connection Of Input Cables

Chapter 2 Installation 17

2.3 External Electrical Connection Interface

2.3.1Connection Of Input Cables

The AC input terminals, SPD, rectifier AC input switch, PE bus and PE terminals are illustrated in Figure 1-6. SPD is just adjacent to the AC input terminals and has been connected in before delivery. PE bus is at the top of the MFU and is connected to the DC Power Cabinet through screws. PE bus is connected PE terminal through a cable.

Connection requirements

The AC mains is connected to the AC input terminals directly. There are 6 AC input modes as shown in Table 2-2:

Table 2-2 AC input modes

Item	Function unit	Amount
	3P+N/380V AC input
	1P+N /220V AC input
AC distribution	L1+L2/220V AC input
	3P/220V AC input
	Terminals only - for individual rectifier AC feeds
	2P MCB only - for individual rectifier AC feeds

Connection method

Strip the insulation layer of one end of the AC input cable, and then mounted the cable end with an H terminal.

The cable mounted with an H terminal is shown in Figure 2-4.

H Terminal

AC Input Cable

Figure 2-4 Cable mounted with H terminal

After attaching the H terminal to the AC input cable, connect the AC input cable to the AC input terminals as shown in Figure 2-5:

ACTURA Flex 48330 Power System User Manual