USER MANUAL
- OPTIMA-31 10K / 20K / 30K
www.xmart-ups.com
150615-OPT-31 10K/20K/30K (ENGLISH) - 10
CIRCUIT BREAKERS AND WIRING SELECTION
Breakers and Gauge of the wires used in the installation must be rated to drive current values in Amps as indicated in below tables.
NOTE every country has its local electrical requirements and regulations. If local electrical regulations require higher rates than suggested values
in this section, please follow local regulations.
INPUT 3PH
OUTPUT 1PH
EXT. BATT
MODEL
BREAKER & WIRING
BREAKER & WIRING
BREAKER & WIRING
10KVA
3PH / 1PH
Breaker:
63 Amps AC (Curve D)
Max. Nominal Current (Ph-N):
- 19A in normal mode (220V)
- 48A in bypass mode (208V)
Wiring (min. recommended size):
- Phase: 8 AWG (10 mm2)
- Neutral: 8 AWG (10 mm2)
- Ground: 8 AWG (10 mm2)
Breaker:
63 Amps AC (Curve D)
Max. Nominal Current (Ph-N):
- 45A in normal mode (220V)
- 48A in bypass mode (208V)
Wiring (min. recommended size):
- Phase: 8 AWG (10 mm2)
- Neutral: 8 AWG (10 mm2)
- Ground: 8 AWG (10 mm2)
Breaker:
50Amps DC (Curve C)
Wiring (min. recommended size):
* 8 AWG (10mm2)
20KVA
3PH / 1PH
Breaker:
100 Amps AC (Curve D)
Max. Nominal Current (Ph-N):
- 38A in normal mode (220V)
- 95A in bypass mode (208V)
Wiring (min. recommended size):
- Phase: 4 AWG (25 mm2)
- Neutral: 4 AWG (25 mm2)
- Ground: 6 AWG (16 mm2)
Breaker:
100 Amps AC (Curve D)
Max. Nominal Current (Ph-N):
- 90A in normal mode (220V)
- 95A in bypass mode (208V)
Wiring (min. recommended size):
- Phase: 6 AWG (16 mm2)
- Neutral: 6 AWG (16 mm2)
- Ground: 6 AWG (16 mm2)
Breaker:
100Amps DC (Curve C)
Wiring (min. recommended size):
* 6 AWG (16mm2)
30KVA
3PH / 1PH
Breaker:
200 Amps AC (Curve D)
Max. Nominal Current (Ph-N):
-
57A in normal mode (220V)
- 145A in bypass mode (208V)
Wiring (min. recommended size):
- Phase: 2 AWG (35 mm2)
- Neutral: 2 AWG (35 mm2)
- Ground: 4 AWG (25 mm2)
Breaker:
200 Amps AC (Curve D)
Max. Nominal Current (Ph-N):
-
136A in normal mode (220V)
- 145A in bypass mode (208V)
Wiring (min. recommended size):
- Phase: 2 AWG (35 mm2)
- Neutral: 2 AWG (35 mm2)
- Ground: 4 AWG (25 mm2)
Breaker:
150Amps DC (Curve C)
Wiring (min. recommended size):
* 3 AWG (35mm2)
Recommended cable size according to 1999 NEC (301-17) based on 30ºC air ambient temperature for single cable.
IMPORTANT NOTE - BYPASS:
Input breakers and cables are rated to drive current in bypass mode. Bypass mode is connected through 1st phase (R-N) only so that
current in bypass mode is 3 times approx. higher than in normal mode. In normal mode input power is distributed in 3 input lines.
WARNING:
Above wiring and breakers rates are only a suggestion. The wire size is strongly affected by diverse factors such as: Operation
temperature, wire length, type of wire, quantity of conductors and kind of installation. Electrical contractor must assure an
appropriate selection for wire and protection devices sizing for complying with local regulations for electrical installations. Wiring
colors must be selected according to local directives and regulations
