Description
Franklin Electric UT3P SubDrive Utility™ Variable Frequency Drive – Constant Pressure Control for 3-Wire and 3-Phase Systems
The Franklin Electric UT3P SubDrive Utility™ Variable Frequency Drive (VFD) is an advanced constant pressure solution engineered for 230V three-wire and three-phase water systems up to 2 HP. Designed for easy installation, dependable operation, and long service life, the SubDrive Utility™ provides steady water pressure, built-in motor protection, and energy-efficient variable speed control — all within a durable NEMA 3R-rated enclosure for indoor or outdoor use.
By maintaining a consistent output pressure regardless of varying demand, the UT3P ensures optimal performance and comfort in residential, commercial, agricultural, and light industrial water systems. Its compact design requires only a small pressure tank, reducing overall system footprint while maintaining superior performance.
Key Features: Constant Pressure, Smart Protection, Compact Design
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Versatile System Compatibility – Operates with 230V single-phase (3-wire) or three-phase systems from 0.5 to 2 HP, providing flexible use across a wide range of installations.
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Constant Pressure Operation – Maintains steady water pressure automatically, enhancing comfort and system performance.
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Compact System Design – Requires only a small pressure tank, saving space and simplifying setup.
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Integrated Motor Protection – Safeguards against dry run, overload, underload, short circuit, and over-temperature conditions.
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NEMA 3R Enclosure – Rugged, corrosion-resistant housing is rated for indoor and outdoor installation, protecting against rain, sleet, and environmental exposure.
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Energy Efficient – Variable frequency technology optimizes energy use by adjusting motor speed to demand, lowering operational costs.
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Simplified Installation – Clear wiring terminals, easy programming, and plug-and-play setup reduce installation time.
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Certified for Safety – cUL Listed / UL Recognized and ANSI/NSF Standard 61 approved for drinking water system compatibility.
Technical Specifications
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Frequency: 60 Hz
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Input Voltage: 230 VAC, Single-Phase
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Output Voltage: 230 VAC (Single-Phase 3-Wire or Three-Phase)
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Motor Compatibility: 0.5–2 HP (3-Wire or 3-Phase Systems)
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Output Amps: 13.2 A max
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Output Frequency Range: 15–60 Hz (CEN) / 30–60 Hz (SUB)
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Power Rating: 2500 W max
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Enclosure Rating: NEMA 3R (Type 3R)
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Operating Temperature Range: -13°F to 122°F (-25°C to 50°C)
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Storage Temperature Range: -13°F to 149°F (-25°C to 65°C)
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Pressure Sensor Included: Yes
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Pressure Transducer Included: No
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Certifications: cUL Listed / UL / ANSI/NSF 61
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Warranty: 12 months from installation, 24 months from manufacturing
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Weight: 19.84 lbs
Consistent Pressure. Trusted Franklin Performance.
The Franklin Electric SubDrive Utility™ UT3P Variable Frequency Drive delivers steady water pressure, superior motor protection, and dependable performance for both residential and commercial water systems. Compact, efficient, and engineered for long-term reliability, it’s the ideal solution for upgrading or modernizing your pumping system with confidence.















