Installation Drawings

Table 3 Liebert-supplied interconnect wiring for three-input Liebert NXL Maintenance Bypass Cabinet

Run	To	From	Conductor

A	Utility AC - Phase A	MBC Bypass AC - Phase A	Maintenance Bypass AC - Phase A

B	Utility AC - Phase B	MBC Bypass AC - Phase B	Maintenance Bypass AC - Phase B

C	Utility AC - Phase C	MBC Bypass AC - Phase C	Maintenance Bypass AC - Phase C

D	Utility Neutral	MBC Neutral	System Input Neutral

E	Utility Ground	MBC Ground	System Ground

F	Utility AC - Phase A	UPS Bypass AC - Phase A	UPS Bypass Input - Phase A

G	Utility AC - Phase B	UPS Bypass AC - Phase B	UPS Bypass Input - Phase B

H	Utility AC - Phase C	UPS Bypass AC - Phase C	UPS Bypass Input - Phase C

I	Utility AC - Phase A	UPS Rectifier AC - Phase A	UPS Rectifier Input - Phase A

J	Utility AC - Phase B	UPS Rectifier AC - Phase B	UPS Rectifier Input - Phase B

K	Utility AC - Phase C	UPS Rectifier AC - Phase C	UPS Rectifier Input - Phase C

L	Utility Neutral	UPS Neutral	UPS Neutral

M*	MBC Ground	UPS Equipment Ground	UPS Ground

N	UPS Output AC - Phase A	MBC Output AC - Phase A	UPS Output - Phase A

O	UPS Output AC - Phase B	MBC Output AC - Phase B	UPS Output - Phase B

P	UPS Output AC - Phase C	MBC Output AC - Phase C	UPS Output - Phase C

P1	UPS Output Neutral	MBC Neutral	UPS Neutral

Q	MBC Output AC - Phase A	Load AC - Phase A	Load AC Input - Phase A

R	MBC Output AC - Phase B	Load AC - Phase B	Load AC Input - Phase B

S	MBC Output AC - Phase C	Load AC - Phase C	Load AC Input - Phase C

T	MBC Neutral	Load Neutral	Load Neutral

U	MBC Ground	Load Ground	Load Equipment Ground

V	MBC Terminal Strip	UPS External Interface Board	Control Wiring

* For detached units only