Recommended Cable Sizes

DANGER
hazard of electric shock, explosion, or arc flash All wiring must comply with all applicable national and/or electrical codes. The maximum allowable cable size is 6 mm² (10 -15 kVA UPS), 16 mm² (20 kVA UPS) , 25 mm² (30 kVA UPS), or 35 mm² (40 kVA UPS). Shrink sleeves must be fitted over the cable lug crimped zone and must overlap with the cable insulation on all power cables. Failure to follow these instructions will result in death or serious injury.

DANGER

hazard of electric shock, explosion, or arc flash

All wiring must comply with all applicable national and/or electrical codes.
The maximum allowable cable size is 6 mm² (10 -15 kVA UPS), 16 mm² (20 kVA UPS) , 25 mm² (30 kVA UPS), or 35 mm² (40 kVA UPS).
Shrink sleeves must be fitted over the cable lug crimped zone and must overlap with the cable insulation on all power cables.

Failure to follow these instructions will result in death or serious injury.

NOTE: Overcurrent protection is to be provided by others.

Cable sizes in this manual are based on the minimum requirements in table B.52.3 and table B.52.5 of IEC 60364-5-52 with the following assertions:

90 °C conductors
An ambient temperature of 30 °C
Use of copper conductors
PE cable size is based on table 54.2 of IEC 60364-5-54
Installation method C
Specific to AC cables: Maximum length 70 m with a line voltage drop <3% installed on perforated cable trays, XLPE-type insulation, single layer trefoil formation, THDI between 15% and 33%.
Specific to DC cables: Maximum length 15 m with a line voltage drop <1%

NOTE: If the ambient temperature is greater than 30 °C, larger conductors are to be selected in accordance with the correction factors of the IEC.

NOTE: Recommended cable sizes and maximum allowable cable size may vary for the auxiliary products. Refer to the installation manual provided with the auxiliary product.

NOTE: The DC cable sizes given here are recommendations – Always follow the specific instructions in the battery solution documentation for DC cable sizes and DC PE cable sizes and ensure that the DC cable sizes match the battery disconnect device rating.

Copper

UPS rating	10 kVA			15 kVA			20 kVA
Voltage (V)	380	400	415	380	400	415	380	400	415
Input phases (mm²)	6	6	6	6	6	6	10	10	10
Input PE (mm²)	6	6	6	6	6	6	10	10	10
Bypass/output phases (mm²)	6	6	6	6	6	6	10	10	10
Bypass PE/output PE (mm²)	6	6	6	6	6	6	10	10	10
Neutral (mm²)	6	6	6	6	6	6	16	16	16
DC+/DC-/DC N (mm²)	6	6	6	6	6	6	16	16	16
DC PE (mm²)	6	6	6	6	6	6	16	16	16

Copper

UPS rating	30 kVA			40 kVA
Voltage (V)	380	400	415	380	400	415
Input phases (mm²)	16	16	16	25	25	25
Input PE (mm²)	16	16	16	16	16	16
Bypass/output phases (mm²)	16	16	16	25	25	25
Bypass PE/output PE (mm²)	16	16	16	16	16	16
Neutral (mm²)	25	25	25	35	35	35
DC+/DC-/DC N (mm²)	25	25	25	35	35	35
DC PE (mm²)	16	16	16	16	16	16