Emerson GXT 10KVA user manual Connecting Nfinity to Maintenance Bypass without transformer

Cable Installation

Figure 12 Connecting Nfinity to Maintenance Bypass without transformer

Input 2

Input 1

				120	120
				208
TB2	NFINITY MAINTENANCE BYPASS CABINET			TB5	240
L1		WITHOUT TRANSFORMER		1
L2				2
N				3
				4
G	Remove these three
TB1	wires for dual source			G
	(see NOTE below)
L1
L2				G
N				G
G	TB3		TB4
	L1 L2	G	1 2 3	4

Flexible conduit

L1 L2

TB1

Ensure that the tap selector is set to the correct input voltage

G1 2 3

TB2

NFINITY UPS

1 2 3 4 5

TB3

GEC

See Nfinity user manual for details on connecting GEC.

NOTE

1.SINGLE-SOURCEFEED—If feeding the Maintenance Bypass Cabinet from a single source, the input connection may be made to either TB1 or TB2.

2.DUAL-SOURCEFEED—If feeding the Maintenance Bypass Cabinet from a dual source, the UPS input supply connection must be made to TB1 and the bypass input supply connection must be made to TB2. The jumpers between TB1 and TB2 must be removed.

3.If connected equipment is a combination of 208 VAC and 120 VAC, use a three-phase panel board connected to the output terminal TB5.

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