APC BC300 Series Installation Guide download pdf (Page 22)

22 Installation Guide APC BC300 Series 15kW 208/450/480V UPS

990-1165

Installation

Notes:

1. 3 or 4 wire provided source.

2. Cables not provided by APC.

3. Recommended input over current protection (MIB) based on an 80% rated device.

4. All AC cables must be AC 3 or 4 wire 3-phase.

5. Keep UPS input, output and control cables in separate conduits.

6. Installation must comply with all applicable national and local codes.

UPS Model Input

Current

Output

Current

Recom-

mended

MIB

DC Voltage DC Current

15kW 208V 61A 42A 80AT 216V 75A

15kW 450V 26A 19A 40AT 216V 75A

15kW 480V 26A 18A 35AT 216V 75A

NOTICE!

You must provide overcurrent protection and UPS input AC disconnect means.

See the “Technical Specifications” section in this Installation Guide for recommended UPS input

and output overcurrent protection.

CAUTION!

UPS systems can be connected as 3-phase, a 3-wire plus ground, provided that the load is not

connected to the neutral conductor.

NOTICE!

Only authorized electricians may install the UPS and all applicable codes must be observed.

NOTICE!

Always keep AC, DC and communication cables separated.

NOTICE!

The grounding electrode conductor (Protective Earth - PE) must be the same size (ampacity) as

the UPS input circuit conductors. Conduit is not an acceptable grounding electrode conductor -

see National Electrical Code Section 250-91(a).

NOTICE!

The unit is wired from the factory as a separately derived system. Output neutral is bonded to

equipment ground through main bonding jumper inside the UPS. See National Electrical Code

Article 250-5(d) and 250-26 for correct installation grounding.

NOTICE!

The maintenance bypass switch must be a 4-pole device switching all three phases and neutral.

If you are using a 3-pole device, contact APC Technical Support for instructions on how to

convert the unit to a not-separately derived system.

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APC BC300 Series Installation Guide Page 22

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