990-5996D-001

Recommended Cable Sizes for 400 V

DANGER
hazard of electric shock, explosion, or arc flash
All wiring must comply with all applicable national and/or electrical codes.
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 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

  • Installation method C

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

Cable Size for Cables Between UPS and Battery Breaker for Easy UPS 3M

Battery breaker boxes Connection 60 kVA 80 kVA 100 kVA 120 kVA 160 kVA 200 kVA
1xE3MBBB60K80H DC+, N, DC- (mm²) 50 70
PE (mm²) 25 35
2xE3MBBB60K80H DC+, N, DC- (mm²) 50 50 50 50 70
PE (mm²) 25 25 25 25 35
1xE3MBBB100K200H DC+, N, DC- (mm²) 2 x 70 2 x 70 2 x 95 2 x 120
PE (mm²) 70 70 95 120
2xE3MBBB100K200H DC+, N, DC- (mm²) 150 150 150
PE (mm²) 95 95 95

Cable Size per String for Cables Between Battery Breaker and Battery Bank For Easy UPS 3M

Number of battery strings Connection 60 kVA 80 kVA 100 kVA 120 kVA 160 kVA 200 kVA
1 battery string Batt+, N, Batt- (mm²) 50 70 2 x 70 2 x 70 2 x 95 2 x 120
PE (mm²) 25 35 70 70 95 120
2 battery strings Batt+, N, Batt- (mm²) 25 35 70 70 95 120
PE (mm²) 16 16 35 35 50 70
3 battery strings Batt+, N, Batt- (mm²) 16 16 50 50 50 70
PE (mm²) 16 16 25 25 25 35
4 battery strings Batt+, N, Batt- (mm²) 16 16 35 35 35 50
PE (mm²) 16 16 16 16 16 25

Cable Size for Cables Between UPS and Battery Breaker for Easy UPS 3L

Battery breaker boxes Connection 250 kVA 300 kVA 400 kVA 500 kVA 600 kVA
1 x E3MBBB100K200H DC+, DC- (mm²) 2 x 120 2 x 120 2 x 120
PE, N (mm²) 120 120 120
2 x E3MBBB100K200H DC+, DC- (mm²) 2 x 70 2 x 95 2 x 120 2 x 120 2 x 120
PE (mm²) 70 95 120 120 120
N (mm²) 120 120 120 120 120
3 x E3MBBB100K200H DC+, DC- (mm²) 2 x 120 2 x 120
PE, N (mm²) 120 120

Cable Size per String for Cables Between Battery Breaker and Battery Bank for Easy UPS 3L

Number of battery strings* Connection 250 kVA 300 kVA 400 kVA 500 kVA 600 kVA
1 battery string Batt+, N, Batt- (mm²) 2 x 120 2 x 120 2 x 120 2 x 120 2 x 120
PE (mm²) 120 120 120 120 120
2 battery strings Batt+, N, Batt- (mm²) 120 120 120 120 120
PE (mm²) 70 70 70 70 70
3 battery strings Batt+, N, Batt- (mm²) 70 70 70 70 70
PE (mm²) 35 35 35 35 35
4 battery strings Batt+, N, Batt- (mm²) 50 50 50 50 50
PE (mm²) 25 25 25 25 25
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