Ferrups 0800-2000 Installation Manual - page 23
22
Figure 16: Installation Wiring Diagram for 2, 3, 4.5, 6, and 7.5 kVA FERRUPS Models
with Internal Bypass Switch (L1, L2, N)
• 208 Input, 120/240 Output • 208 Input, 208 Output •220 Input, 220 Output
• 60 Hz 220 Input, 220 Output (Mexico) • 230 Input, 230 Output • 240 Input, 120/240 Output
• 208 Input, 120/208 Output
Note 3
For 208 VAC
input only. Do
not place any
loads between
L2-N. Only 88
volts available.
N
L2 X3
X2
X1
L1
BUILDING GROUNDING
ELECTRODE OR
PROTECTIVE EARTH
SYSTEM
AC LINE INPUT AC TO LOADS
Notes 2 & 7
Note 5
Note 4
Note 4
N
L1 L2
Note 1
Note 6 Note 9
Note 10
Note 11
Note 9
TO
LOADS
N
L1 L2
Note 8
Note 7
NOTE 1: The customer must provide input overcurrent protection
as stated in NEC Section 240-21 or local codes. Size the
protection device according to local code requirements. (See
NOTE 2: The UPS bypass switch must be installed within sight of
the UPS. To properly install, complete the voltage and phase
NOTE 3: The customer must provide and install this ground
(earth) connection per NEC Sections 250-5(d), 250-26, 250-91
and 250-92, or local code requirements. This grounding electrode
conductor must be at least #8 AWG (8.36 mm
2
) per NEC table
250-94. If the UPS input circuit conductors are larger than #8
AWG (8.36 mm
2
), Best Power requires the grounding electrode
conductor to be the same size (ampacity) as the largest UPS
input circuit conductor. See NEC Section 110-3(b). Conduit is not
considered an acceptable grounding electrode conductor. Best
Power does not recommend routing the grounding electrode
conductor through metallic conduit. This conductor may require
protection from physical damage according to local code
requirements.
NOTE 4: All AC circuit conductors, including the neutral and
equipment grounding conductors, must be the same size
(ampacity), have the same rating (75° C copper wire), and be
sized according to the input circuit breaker. The UPS input and
output conductors must be run through separate conduits.
NOTE 5: The customer must provide output overcurrent
protection. See NEC Section 240-21 or local requirements. See
on page 11 for maximum output overcurrent protection
device ratings.
NOTE 6: For maximum protection against electrical noise, use
isolated ground receptacles. See NEC Section 250-74, Exception
#4.
NOTE 7: See
for installation and service clearances
before installing the UPS. Use flexible conduit on the UPS or the
external battery cabinet if either must be moved.
NOTE 8: External UPS battery cabinets are optional. See
for installation instructions.
NOTE 9: UPS output circuits shall be installed in dedicated
conduit systems and not shared with other electrical circuits.
NOTE 10: The load fuse or circuit breaker should be sized to
match the load current requirements. See
NOTE 11: All 120-volt loads must be connected between N and
L1.