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4200FA Installation and Operation Manual 21
Ensure the three-phase commercial power input is connected for clockwise rotation. The UPS
* Customer-provided breaker for units with optional Bypass Input.
Figure 6-2 Power Connections 15/25/30 kVA with Internal Transformer
6.1.3 Recommended Wire Size and Torque Requirements for 15/25/30kVA
Minimum wire sizes are based on NEC Table 310.16. Neutral wire sized per NEC Article
310.15(B), Grounding wires sized per NEC Article 250.122. Maximum wire capacity of the
terminal lugs is 1 AWG.
Optional Bypass Input:
3-Phase, 3-Wire
*208 V requires 3-Phase,
4-Wire Wye
TB4
INPUT GROUND RESISTANCE
LESS THAN 10 OHMS
CUSTOMER-PROVIDED AC DISTRIBUTION PANEL
TO BATTERY SYSTEM GND
TB1
Input Terminals: 1 – 5
Output Terminals: 6 – 10