About VSR23-4p2 - Crompton VFD - 0.75 kW / 1HP 1-Phase 220V Solar
The Crompton Greaves Emotron VSR23-4P2 is a compact, highly reliable 0.75 kW (1 HP)
Solar Variable Frequency Drive (VFD) designed to optimize water flow in solar-powered pumping systems. Operating on a 220V single-phase grid power input or a direct 310V DC solar array, it acts as an intelligent regulator to protect your pump motor and extract the absolute maximum energy possible from your solar panel system. [
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Physical Specifications (Dimensions & Weight)
The VSR23-4P2 utilizes a smaller micro-frame chassis (Frame Size VSS1 / Size 1) compared to the larger 2.2 kW drive, providing a highly compact layout footprint: [
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- Height: 162 mm (6.38 inches)
- Width: 95 mm (3.74 inches)
- Depth / Length: 120 mm (4.72 inches)
- Total Weight: 1.1 kg (2.43 lbs) [1, 2, 3]
Electrical & Operational Specifications
- Power Rating: 0.75 kW / 1 HP
- Maximum Output Current: 4.2 Amps
- Recommended Solar Array Power: Up to 1.1 kWp (Kilowatt-peak)
- Maximum Input DC Current: 7.5 Amps
- Grid AC Input Tolerance: 200V240V AC (accepts an operational swing of -15% to +30%)
- Maximum Solar DC Input Voltage: 310V DC standard [1, 2]
Key Automated Functions
- Ultra-Precise MPPT Tracking: Achieves up to 99% solar power tracking efficiency to constantly tweak pump RPM based on sunlight intensity. [1, 2]
- Intelligent Dormant States: Automatically transitions the pump into "sleep mode" during weak morning or evening light, and shifts back to "wake up mode" once solar radiance peaks. [1, 2, 3]
- Advanced Pump Safeguards: Ships standard with a built-in water pump dry-run pre-warning, high-water tank level automation control, lightning mitigation, and over-temperature safety cutoffs. [1]