Schneider Electric 58 TRX Recommended Branch Circuit Protection Devices, Fuses, Circuit Breakers

[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

Altivar® 58 TRX AC Drives

Wiring Recommendations

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]
1		0.75	U18M2	15 [1]
2		1.5	U29M2	30 [1]
3		2.2	U41M2	30 [1]
4		3	U72M2	35 [1]
5		4	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
					CT, VTLN	F1-F2-		VT
			CTLN	F1-F2-F3		F3			F1-F2-F3
hp		kW			ATV58H••		ATV58H••
			ATV58H•••••	Class J [2]		Class J			Class J [2]
					•••	[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

113

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