3 installation, 1 input voltage ratings, 2 input fusing and disconnect requirements – Lenze SCF frequency inverter User Manual
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Lenze 13466146 EDBSF01 v24 EN
3 Installation
3.2.1 Input Voltage Ratings
SF200 Series drives are rated for 208/240 Vac, three phase, 50-60 Hz input. The drive will function
with input voltages of 208 to 240 Vac (+ 10%, - 15%), at 48 to 62 Hz.
SF200Y Series drives are rated for 208/240 Vac, single or three phase, 50-60 Hz input. The drive will
function with input voltage of 208 to 240 Vac (+10%, -15%), at 48 to 62 Hz.
SF400 Series drives are rated for 400/480 Vac three phase, 50-60 Hz input. The drive will function
with input voltages of 400 to 480 Vac (+ 10%, - 15%), at 48 to 62 Hz.
SF500 Series drives are rated for 480/590 Vac, three phase, 50-60 Hz input, and will function with
input voltages of 480 to 590 Vac (+ 10%, - 15%), at 48 to 62 Hz.
NOTE
Parameter 01 - LINE VOLTAGE SELECTION must be programmed according to the applied
input voltage. Refer to Section 4.4 - Description of Parameters.
3.2.2 Input Fusing and Disconnect Requirements
A circuit breaker or a disconnect switch with fuses must be provided in accordance with the National
Electric Code (NEC) and all local codes. Refer to the following tables for proper fuse/circuit breaker
ratings and wire sizes.
INPUT FUSE & CIRCUIT BREAKER RATINGS
208/240 Vac, 1 phase 208/240 Vac, 3 phase
400/480 Vac, 3 phase
480/590 Vac, 3 phase
MODEL
RATING
MODEL
RATING
MODEL
RATING
MODEL
RATING
SF203Y
10 A
SF203Y
10 A
SF205Y
10 A
SF205(Y)
10 A
SF405
10 A
SF210Y
15 A
SF210(Y)
10 A
SF410
10 A
SF510
10 A
SF215Y
20 A
SF215(Y)
12 / 10 A
SF415
10 A
SF220Y
25 / 20 A
SF220(Y)
15 / 12 A
SF420
10 A
SF520
10 A
SF230Y
30 / 25 A
SF230(Y)
20 / 15 A
SF430
10 A
SF530
10 A
SF250Y
45 / 40 A
SF250(Y)
30 / 25 A
SF450
15 A
SF550
12 A
SF275
45 / 40 A
SF475
20 A
SF575
20 A
SF2100
50 / 50 A
SF4100
30 / 25 A
SF5100
20 A
SF2150
80 / 75 A
SF4150
40 / 35 A
SF5150
30 A
SF2200
100 / 90 A
SF4200
50 / 45 A
SF5200
40 A
SF4250
70 / 60 A
SF5250
45 A
SF4300
80 / 70 A
WARNING!
Per UL requirements, use a fuse (not a circuit breaker) for 240 VAC drives requiring
>40A protection and for 480 VAC & 600 VAC drives requiring >32A protection.
Additionally, use a fuse (not a circuit breaker) for the following models:SF215Y,
SF220Y, SF230Y, SF250Y, SF250, SF275, SF575, SF5100, and SF5150.