Variable Frequency Drives

SubDrive/MonoDrive NEMA 4

Variable Frequency Drives

SubDrive/MonoDrive NEMA 4

From residential to agricultural and commercial applications, Franklin Electric’s SubDrive variable frequency drive family offers a cost-effective, easy-to-install upgrade to traditional systems.

Designed within a NEMA 4 weatherproof enclosure, they offer rugged, watertight variable frequency drive solutions that meets water demand changes.


Features & Benefits

  • Designed for Water Systems, Optimized for Constant Pressure: Designed specifically for water pumping applications, SubDrive & MonoDrive deliver unique features:
    • Provides consistent water pressure across a system, eliminating fluctuations
    • Soft start maximizes system life
    • Advanced filtering to remove radio frequency interference
    • Additional built-in protections include:
      • Underload (Dry-run) with customizable sensitivity
      • Overload / Locked pump
      • Output short circuit and open circuit
      • Undervoltage
      • Electrical surge
      • Overheated controller
  • Simple Installation: Easy-to-install drive; most applications require the simple flip of one switch, saving significant time during installation.
  • Versatility for Multiple Applications:
    • From SubDrive75 thru SubDrive300, SubDrive (NEMA 4) models are designed to provide constant pressure for three-phase motors using single-phase input power for 1-1/2 – 5 hp jobs.
    • MonoDrive and MonoDriveXT (NEMA 4) are designed to convert a conventional ½ hp to 2 hp, single-phase, 3-wire pump system into a constant pressure system by simply replacing the control box and pressure switch.
  • Smaller Footprint, Smarter Use of Space:
    • Compact design, that is ideal for wall-mounting, works with small pressure tanks or existing larger tanks
    • Ideal for demanding applications since the self-contained NEMA 4 enclosures (rated for indoor or outdoor use) offer robust protection against harsh environmental conditions
  • Fully Supported: Comes fully supported by the industry-leading technical support professionals and field service engineers

Order Information

Item Description
5870203384 SubDrive75 NEMA 4 with Pressure Sensor
5870204104 SubDrive100 NEMA 4 with Pressure Sensor
5870204154 SubDrive150 NEMA 4 with Pressure Sensor
5870206300 SubDrive300 NEMA 4 with Pressure Sensor

Constant Pressure Controller Model

Item Description
5870203114 MonoDrive NEMA 4 with Pressure Sensor
5870204114 MonoDriveXT NEMA 4 with Pressure Sensor

Parts & Accessories

SubDrive/MonoDrive Accessories

Item Description
150814902 Surge Arrestor - Single Phase - Up to 125V To Group
223995902 Pressure Sensor Cable Kit, 100 Feet, Indoor
225198901 Input EMI Filter Kit, 36A
225199901 Surge Capacitor Kit, 3-Lead
225199902 Surge Capacitor Kit, 4-Lead
225300901 Output EMI Filter Kit, 10.9A
225800901 Pressure Sensor Cable Kit, 10 Feet, Direct Burial
225800902 Pressure Sensor Cable Kit, 30 Feet, Direct Burial
225800903 Pressure Sensor Cable Kit, 100 Feet, Direct Burial
225970901 Standard Pressure Sensor, 75-150 PSI, NSF Rated
226030901 Input AMR Filter Kit, 20A
226035901 Input IGF Filter Kit, 40A
226770901 Moisture Sensor Kit Wet Floor Sensor
226895901 Cable Kit, Duplex Alt. 10ft
226895902 Cable Kit, Duplex Alt. 50ft
226895903 Cable Kit, Duplex Alt. 100ft
226941901 Pressure Sensor Cable Kit, 100 Feet, Outdoor
5850012000 Duplex Alternator for SubDrive/MonoDrive Systems
223995901 Standard Pressure Sensor, 25-90 PSI, NSF Rated
225495901 Pressure Sensor Kit SD300
225635901 SD75/MonoDrive NEMA 4 Fan Kit
225635902 SD100/150/XT NEMA 4 Fan Kit
225635903 SD300 Heatsink Fan Kit
225635904 NEMA 4 Stirring Fan Kit
225635907 SD100/150/XT N1 Older Fan Kit
225755901 SDN4 Relay Bd Kit
225770901 Drawdown Kit
225805901 Heatsink Cover Kit
225880901 SDN4 Option Card Kit
225950901 SubDrive 300 Low Voltage Kit
226540902 SD EF Press Sens Input Bd Kit
226545901 Fan Kit, SD15/MD Connect N3R
226545902 Fan Kit, SD20/30MDXT Connect
226545903 SD50 Fan Kit
226550902 SD50 Air Filter Kit
226905902 Pressure Transducer Kit, 100 PSI, 4-20mA
226905903 Pressure Transducer Kit, 150 PSI, 4-20mA
226905904 Pressure Transducer Kit, 200 PSI, 4-20mA
226910901 Pressure Transducer Cable Kit, 10 Feet
226910902 Pressure Transducer Cable Kit, 25 Feet
226910903 Pressure Transducer Cable Kit, 50 Feet
226910904 Pressure Transducer Cable Kit, 100 Feet
226910905 Pressure Transducer Cable Kit, 150 Feet
226910906 Pressure Transducer Cable Kit, 200 Feet
575214902 Screen Replacement Kit