Altivar
®
58 TRX AC Drives
Wiring Recommendations
113
09/2003
© 2000–2003 Schneider Electric All Rights Reserved
Recommended Branch Circuit Protection Devices
Branch circuit protection must be installed on the input (line side) of the drive controllers. Input fuses
may be used on 1/2 hp to 500 hp drive controllers; circuit breakers may be used on 1/2 hp to 100 hp
drive controllers.
Fuses
The fuses specified in Tables 1–3 (pages 113–114) are suitable for branch short circuit protection and
provide excellent short circuit protection for the drive. Fuses are recommended for ATV58 TRX Type H
and Type FVC drives when they are wall mounted.
Circuit Breakers
Circuit breakers will also provide branch short circuit protection. Because circuit breakers are typically
slower than fuses, they are not as effective in limiting damage to the controller in the event of an internal
drive short circuit such as shorted bus connections, shorted input rectifier, or failure of the internal solid
state overcurrent protection circuit in the controller. Refer to the ALTIVAR 58 TRX Installation Guide for
Type H Controllers (VVDED397048US) for recommended circuit breakers and application
considerations.
Table 1: Recommended Fuses: 208/230 V Single-Phase Drive Controllers
Motor Drive Controller
F1-F2
Line Power Fuses
hp kW ATV58H••••• Class J
0.5 0.37 U09M2 10
[1]
10.75 U18M2 15
[1]
21.5 U29M2 30
[1]
32.2 U41M2 30
[1]
43 U72M2 35
[1]
54 U90M2 60
[1]
7.5 5.5 D12M2 70
[1]
10 7.5 D16M2 90
[2]
15 11 D23M2 125
[2]
20 15 D28M2 150
[2]
25 18.5 D33M2 175
[2]
30 22 D46M2 200
[2]
Table 2: Recommended Fuses: 208/230 V Three-Phase Drive Controllers
Motor Drive Controller
F1-F2-F3
Line Power Fuses
hp kW ATV58H••••• Class J
[1]
2 1.5 U29M2 15
3 2.2 U41M2 20
— 3 U54M2 30
5 4 U72M2 35
7.5 5.5 U90M2 60
10 7.5 D12M2 70
hp kW
CTLN
ATV58H•••••
F1-F2-F3
Class J
[2]
CT, VTLN
ATV58H••
•••
F1-F2-
F3
Class J
[2]
VT
ATV58H••
•••
F1-F2-F3
Class J
[2]
10 7.5 D16M2 70
15 11 D23M2 90 D16M2 70 D16M2 70
20 15 D28M2 110 D23M2 90 D16M2 90
25 18.5 D33M2 125 D28M2 110 D23M2 125
30 22 D46M2 175 D33M2 125 D28M2 150
40 30 D46M2 175 D33M2 175
50 37 D46M2 200
[1] Fast-acting or time
delay Class J fuses are
acceptable. Class T
fuses are acceptable.
Class CC fuses may be
used if recommended
fuse rating is 30 A or
lower.
[2] Fast-acting Class J
fuses. Class T fuses are
acceptable.
[1] Fast-acting or time
delay Class J fuses are
acceptable. Class T
fuses are acceptable.
Class CC fuses may be
used if recommended
fuse rating is 30 A or
lower.
[2] Fast-acting Class J
fuses. Class T fuses are
acceptable.
CT Constant Torque
CTLN Constant Torque Low
Noise
VTLN Variable Torque Low
Noise
VT Variable Torque
