Apc BC300 User Manual download pdf (Page 16)

16 Installation Guide APC BC300 Series 60kW 208/480V UPS

990-1400A

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

60kW 208V

219A 167A 300AT 216V 300A

60kW 480V 95A 72A 130AT 216V 300A

NOTICE!

Over-current protection and UPS input AC disconnect means must be provided.

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

and output over-current 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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