About VSR11-9p5 -Crompton VFD - 2.2 kw / 3 Hp1-Phase 110V Solar
The Crompton Greaves Emotron VSR11-9P5 is a high-performance, 2.2 kW (3 HP)
Solar Variable Frequency Drive (VFD) specifically engineered to automate and optimize solar water pumping systems. This specialized drive functions primarily to convert solar DC electricity into usable AC power while regulating motor speed to ensure maximum water delivery even under shifting sunlight conditions. [
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Key Technical Specifications
- Power Rating: 2.2 kW / 3 HP
- Model Number Variants: VSR11-9P5 / VSR119P5 (Often cross-referenced with VSR23-9P5 for standard grid voltages)
- Input Voltage (AC Grid): 110V AC / Single-Phase (-15% to +30% backup option)
- Input Voltage (Solar DC): 250V to 450V DC (Recommended MPPT Range: 250300V DC)
- Output Current: Up to 9.5 Amps
- Output Specification: 3-Phase AC Output (Optimized for standard 3-phase submersible or surface pumps) [1, 2, 4, 5]
Core Operational Features
- Advanced MPPT Algorithm: Incorporates a self-adaptive Maximum Power Point Tracking (MPPT) system with up-to-high tracking efficiency to dynamically maximize pump flow throughout the day. [1, 2]
- Hybrid Dual-Input Power: Seamlessly operates using DC solar panels during peak daytime hours and can switch to single-phase AC grid/generator backup during low-light conditions. [1, 2, 3]
- Built-in System Protection: Protects your hardware investments with integrated dry-run protection, motor overload shutdown, short-circuit mitigation, and over-voltage safety layers. [1, 3]
- Soft-Start Technology: Eliminates sudden power surges and water hammering, drastically expanding the overall operational lifetime of your plumbing and motor mechanics. [1, 2]
Typical Applications
- Agricultural borehole and deep-well submersible pumps
- Drip, sprinkler, and flood irrigation automation
- Rural off-grid water supply and storage tank replenishment projects [, 2]
The Crompton Greaves Emotron VSR11-9P5 (utilising the standard Emotron VSR Frame Size 2 chassis) features physical specifications of
3.31 lbs (1.5 kg) in weight,
6.81 inches in height,
4.33 inches in width, and
5.31 inches in depth/length. [
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Physical Dimensions Breakdown
The precise dimensions of the drive housing, converted from metric specifications, are structured as follows: [
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| Dimension Attribute [1, 2, 3, 4] |
Metric Specification |
Imperial Specification (Inches) |
| Height (H) |
173 mm |
6.81 in |
| Width (W) |
110 mm |
4.33 in |
| Depth / Length (D) |
135 mm |
5.31 in |
| Total Weight |
1.5 kg |
3.31 lbs |
Mounting Layout Dimensions
If you are planning to install the drive inside a control panel or onto a backplate wall mounting system, you will also need the center-to-center screw hole dimensions: [
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- Mounting Center Height (H1): 163 mm (6.42 inches)
- Mounting Center Width (W1): 100 mm (3.94 inches)
- Installation Screw Hole Diameter (d): 4.5 mm (0.18 inches) [1, 2]