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Fig. 4.7.3-3 Dual Input Utility Rectifier & Bypass
Size of Branch Circuit Over Current Protection - All Models: - "CAUTION - To reduce the risk of fire, only connect
UPS to a circuit provided with (See below) maximum amperes branch circuit over current protection in
accordance with the NEC (National Electric Code), NSI / NFPA 70
F1 - AC Input Rectifier
UPS rating
80% Rated
TLE Series 160
300 A
TLE Series 200
350 A
TLE Series 225
400 A
TLE Series 250
450 A
TLE Series 300
600 A
TLE Series 400
700 A
TLE Series 500
900 A
Wiring!
Wire sizing according to
NEC Section 210-20 (a)
Use 167°F (75°C) copper or aluminum wire.
Wiring requirements:
AC Input Rectifier
AC Input Bypass
AC Output
DC Input
Maximum recommended cable size
UPS rating
Rectifier Input
TLE Series 160
2 x 3/0 AWG
TLE Series 200
2 x 4/0 AWG
TLE Series 225
2 x 300 kcmil
TLE Series 250
2 x 350 kcmil
TLE Series 300
3 x 300 kcmil
TLE Series 400
4 x 4/0 AWG
TLE Series 500
4 x 350 kcmil
F2 - AC Input Bypass
100% Rated
80% Rated
250 A
250 A
300 A
300 A
350 A
350 A
350 A
400 A
450 A
500 A
600 A
600 A
700 A
800 A
Table 310-16
3-Phase, 4 wire plus Ground
3-Phase, 4 wire plus Ground
3-Phase, 4 wire plus Ground
2 wire (positive and negative) plus Ground.
Bypass Input
2 x 2/0 AWG
2 x 3/0 AWG
2 x 2/0 AWG
2 x 300 kcmil
2x 400 kcmil
4 x 3/0 AWG
4 x 300 kcmil
TLE Series 160 to 500 UL S2B
Fig. 4.7.3-4 Common Input Utility Rectifier & Bypass
F3 - AC Input
100% Rated
80% Rated
200 A
300 A
250 A
350 A
300 A
400 A
350 A
450 A
400 A
600 A
500 A
700 A
700 A
900 A
DC Input
2 x 300 kcmil
2x 400 kcmil
2 x 600 kcmil
2 x 600 kcmil
3 x 500 kcmil
4 x 400 kcmil
4 x 600 kcmil
UPS Installation Guide / REV-A
F4 - DC Input
100% Rated
80% Rated
250 A
400 A
300 A
500 A
350 A
600 A
350 A
600 A
450 A
800 A
600 A
1000 A
700 A
1200 A
AC Output
2 x 2/0 AWG
2 x 3/0 AWG
2 x 2/0 AWG
2 x 300 kcmil
2x 400 kcmil
1 x 1/0 AWG
4 x 3/0 AWG
1 x 2/0 AWG
4 x 300 kcmil
1 x 3/0 AWG
100% Rated
400 A
500 A
600 A
600 A
800 A
1000 A
1200 A
GND
1 x 3 AWG
1 x 2 AWG
1 x 1 AWG
1 x 1 AWG
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