OnLine Power Constant Power 3 - Manual (Page 24)

OnLine Power
6002-034 REV. C 3-3
3-4-4 Input Power Connection for Constant Power 6 Regulator
Procedure
1. All Constant Power 6 regulators are equipped with an input power cord. See Table 2-1 for amperage
rating and input connector. A customer furnished mating connector or J-Box is required for input power.
The circuit which feeds this connector should be dedicated to providing power only to this unit. This
circuit must include two power conductors and an insulated ground conductor. Size the conductor to suit
the unit kVA rating, the input voltages, and the overall length of the cable.
The input power cable size and installation must be in accordance with the National Electrical Code
(NEC) and applicable local requirements.
A parity sized ground, with respect to the primary input conductors is recommended. The grounding
conductor is to be grounded to the earth at the service equipment or other acceptable true building
ground. All Constant Power 6 regulators are equipped with a grounding terminal lug which allows for a
single zero signal reference ground interface. It provides a method for collecting the system grounds into
one central point for routing back to the building service entry panel. The grounding terminal may, in
addition, be bonded to the raised floor pedestal stringer system to complete an EDP reference network
and help dampen high frequency noise.
CAUTION
Input power connections should be installed by a licensed electrical contractor in
accordance with local codes.
2. Verify the input voltage to the Constant Power 6. Locate the Constant Power 6 label at the bottom center of
the rear panel. Make sure the voltages are correct for the Constant Power 6. If the voltages are in the 200
VAC range but are not correct to the system label, refer to Section 3-4-9 to change the internal connections
of the Constant Power 6.
DANGER!
VERIFY THAT THE INCOMING HIGH VOLTAGE CIRCUIT IS DE-ENERGIZED
BEFORE CONTINUING WITH THIS PROCEDURE.
3. Turn facility circuit breaker to OFF, lock and log out in accordance with OSHA Lockout/Tag-out requirements.
4. Install mating connector assembly or junction box for input of Constant Power 6.
5. Check input voltages for correct pinouts as required by the Constant Power 6.
6. Plug input power connector to input socket or hardwire input power cord to the junction box.