Branch Circuit Protection; Input Wire And Fuse Sizing; Output (Motor) Wire Sizing - Franklin Electric SUBDRIVE UTILITY UT3P Manual Para Propietarios

Branch Circuit Protection

Integral solid state short circuit protection does not provide branch circuit protection. Branch circuit protec-
tion must be provided in accordance with the National Electrical Code and any additional local codes, or the
equivalent. Drive shall be protected by fuse or inverse-time circuit breaker only, rated 300 V, and a maxi-
mum 300% of full load motor output current rating as noted below.

Input Wire and Fuse Sizing

Input
Model
Voltage
230
230
UT3P
230
230
230
1
Based on a 3% voltage drop.
*
90 C Insulation only.
NOTE: Minimum breaker amps may vary from AIM Manual specifications because of VFD characteristics.
NOTE: The drive terminal blocks are rated to accept 6AWG – 20AWG (both input and output wiring).
6AWG is the maximum wire size the drive can physically accept. An external junction box is required if using
larger wire (i.e. you can use 4AWG or bigger cable out to the motor, but you will have to junction and splice
this to 6AWG or smaller before entering the drive enclosure).

Output (Motor) Wire Sizing

Motor
Motor Family
Voltage
214 505 xxxx 230
214 507 xxxx 230
214 508 xxxx 230
224 300 xxxx 230
224 301 xxxx 230
234 511 xxxx 230
234 512 xxxx 230
234 513 xxxx 230
234 514 xxxx 230
234 515 xxxx 230
1
Based on a 5% voltage drop with 1000 ft limit.
Notes:
• The use of 600 V minimum rated motor cable is required.
• Maximum allowable wire lengths are measured between the controller and motor, based on AIM Manual
requirements with up to 1000 ft limit. Larger wire and filtering are required if exceeding the 1000 ft limit.
• Flat-jacketed submersible motor cable is recommended. All splices in the motor cable must be properly
sealed with watertight shrink tubing. Use extreme caution to avoid damaging or compromising the
motor cable insulation during installation or service.
Fuse/
Motor HP Breaker
Amps
14
1/2 (0.37 kW) 15 130
3/4 (0.55 kW) 15 130
1.0 (0.75 kW) 20
70
1.5 (1.1 kW) 25 –
2.0 (1.5 kW) 25 –
Phase Horsepower
1 1/2 (0.37 kW)
1 3/4 (0.55 kW)
1 1.0 (0.75 kW)
1 1.5 (1.1 kW)
1 2.0 (1.5 kW)
3 1/2 (0.37 kW)
3 3/4 (0.55 kW)
3 1.0 (0.75 kW)
3 1.5 (1.1 kW)
3 2.0 (1.5 kW)
AWG Copper Wire Sizes, 75° C Insulation, and
Panel to Drive Cable Lengths (in feet)
12 10 8
205 340 525
150 250 390
* *
185 285
110
– 140 215
– 105 167
AWG 600V Copper Wire Sizes, 75° C Insulation, and
Motor Cable Lengths (in feet)
14 12 10
400 650 1000
300 480 760
250 400 630
190 310 480
150 250 390
930 1000 1000
670 1000 1000
560 910 1000
420 670 1000
320 510 810
ELECTRICAL INSTALLATION
Wiring Guidelines
1
6 4 3 2
835 1315 1635 2150
620 975 1210 1595
450 715 885 1165
340 540 670 880
264 421 530 669
1
8 6
1000 1000
1000 1000
990 1000
770 1000
620 970
1000 1000
1000 1000
1000 1000
1000 1000
1000 1000
1 1/0
2720 –
2020 –
1475 –
1115 –
843 1062
4
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
17