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Authorized Franklin Electric Dealer
Constant Pressure Controllers
 Franklin Electric’s constant pressure controllers use state-of-the-art technology to provide constant water pressure through variable speed control of submersible water well pumps.
MonoDrive allows the conversion of a single-phase conventional pump system to a constant pressure system with the simple replacement of a 3-wire control box. It serves applications with performance requirements in the 1/2, 3/4, and 1 Hp range.
SubDrive75 is designed for use with a 3/4 Hp pump mounted to a 1 1/2 Hp Franklin Electric 3-phase motor. It provides 1 1/2 Hp performance from a 3/4 Hp pump, and is ideal for applications such as large homes, ground source heat pumps, and sprinkler systems.
SubDrive150 is designed for use in residential or light commercial applications with a 1 1/2 Hp pump mounted to a 3 Hp Franklin Electric 3-phase motor. It provides 3 Hp performance from a 1 1/2 Hp pump, and is ideal for applications such as large homes, ground source heat pumps, and sprinkler systems.
SubDrive300 provides the same benefits as the SubDrive150 for 3 to 5 Hp pumps.
Features and Benefits:
- Provides Constant Water Pressure at a Wide Range of Settings (25 To 80 psi)
- Works With a Standard Pump and Motor
- Use Any Brand Pump
- NEMA 1 Enclosure (Indoor)
- Works With Small Pressure Tanks (2 Gal. Minimum Volume) or Larger Tanks Already in Place
- Water Faucets can be Installed Between Wellhead and Controller
- Excellent Radio Frequency Interference Shielding
- Installation as Simple as a Control Box
- Soft Start Means Less Motor Stress and Longer Motor Life
- UL Recognized For USA and Canada
- Built-in Diagnostics and Protection
- Surge Protection
- Underload
- Undervoltage
- Locked Pump
- Open Circuit
- Short Circuit
- Overheated Controller
- Smart Reset Technology Allows Well Recovery Before Restarting the Pump
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Use With |
Input |
Output |
Product |
Retrofit Existing? |
Motor Rating |
Pump Rating |
Input Voltage |
Hz |
Amps |
Voltage (to motor) |
Hz |
Amps |
| MonoDrive |
Y |
1/2, 3/4, 1, 1Ø, 3W |
1/2, 3/4, 1 Hp |
190-260 V, 1Ø |
60/50 |
5.7A - 11A* |
Variable, 1Ø |
Variable (30-60 Hz) |
4.0 - 9.0A* |
| SubDrive75 |
N |
1.5 Hp, 230 VAC, 3Ø |
3/4 Hp |
190-260 V, 1Ø |
60/50 |
12 A |
Variable, 3Ø |
Variable (30-80 Hz) |
5.9 A |
| SubDrive150 |
N |
3 Hp, 230VAC, 3Ø |
1.5 Hp |
190-260 V, 1Ø |
60/50 |
23 A |
Variable, 3Ø |
Variable (30-80 Hz) |
10.9 A |
| SubDrive300 |
- |
5 Hp, 230 VAC, 3Ø |
3 or 5 Hp |
190-260 V, 1Ø |
60/50 |
36 A |
Variable, 3Ø |
Variable (30-80 Hz) |
17.8 A |
*amps vary by pump/motor rating
 Features - MonoDrive
Selectable Hp rating (½, ¾, and 1 Hp)
Easy installation – remove the 3-wire control box and install the MonoDrive
Can retrofit existing systems – no need to pull the pump
 Features - SubDrive75, SubDrive150 & SubDrive300
Works with a standard 3-phase Franklin Electric submersible motor
Three-phase performance with single-phase input
High starting torque
More efficient
Smooth running
Special Options
NEMA 3R enclosure
Available for MonoDrive and SubDrive75; allows outdoor installation.
SubDrive Quick Pak System provides pump, motor &controller in one kit makes installing constant pressure pumps even easier. Click here to View the Quick Pak Brochure
Call 1-800-739-7706 for prices. |
