Solar Pump Inverter Drive is an industrial spare component used for Off-grid solar agricultural irrigation and drip farming systems in arid/semi-arid Kenya. STARNEX Industrial Spares supplies this replacement component in Kenya with technical sourcing support across East Africa. Before ordering, confirm the required dimensions, connection standards, and equipment model with our technical sales team.
Solar Pump Inverter Drive
Solar Pump Inverter Drive is an industrial spare component used for Off-grid solar agricultural irrigation and drip farming systems in arid/semi-arid Kenya. STARNEX Industrial Spares supplies this replacement component in Kenya with technical sourcing support across East Africa. Before ordering, confirm the required dimensions, connection standards, and equipment model with our technical sales team.
Functional engineering application
The Solar Pump Inverter Drive (MPN: BLX-SPI-3100) is built for continuous-duty industrial piping, holding pressure, temperature, and cycling loads in factory installations across Kenya and East Africa.
Quotation & fulfilment
Parametric technical attributes
| Generic BLX-SPI-3100 | |
| IDENTIFICATION | |
| Component Type | Solar Pump Inverter Drive |
| Manufacturer / Brand | Generic |
| Part Number (MPN) | BLX-SPI-3100 |
| Stock Keeping Unit (SKU) | STX-BLX-BLXSPI3100 |
| PERFORMANCE & RATINGS | |
| Rated Motor Output Power | 5.5 kW (7.5 HP) / Full Load 13.0 A @ 380-415V |
| Rated Output Voltage | 3-Phase 380V / 415V AC (0 to 50/60 Hz) |
| Maximum DC Input Voltage (Voc) | 800 V DC (Cold open-circuit maximum) |
| Tank Full Overflow Control | Float switch digital input for automatic high-level shutoff |
| Operating Ambient Temp | -10°C to +50°C (Derate above 40°C) |
| TECHNICAL PARAMETERS | |
| Recommended MPPT DC Range | 450 V to 650 V DC (Optimal Vmp 540V DC) |
| MPPT Tracking Efficiency | ≥ 99.0% |
| Alternative AC Input | 3-Phase 380V / 415V AC (50/60 Hz) Generator or Grid |
| Motor Control Method | Space Vector PWM (SVPWM) with soft acceleration ramp |
| Dry-Run Protection | Sensorless underload detection + optional well probe inputs |
| Cooling System | Forced air cooling with high-CFM DC fan and finned aluminum heatsink |
| Enclosure Rating | IP20 (Standard wall mount) / IP54 outdoor cabinet options |
| COMPLIANCE & LOGISTICS | |
| Stock Availability | In Stock — Enterprise Rd, Nairobi |
| KRA Tax Status | Official KRA E-TIMS Tax Invoice Available |
System fitment & verified replacements
Verified interchangeable models
- Veichi SI23
- INVT BPD
- Grundfos RSI
Commonly installed on equipment from
Common questions on this part
For optimal performance, size the solar PV array 25% to 30% above the pump rating (approx. 7.2 kWp of panels). Typically, 14 to 16 modern 550W mono-perc panels connected in a single series string provide the ideal Vmp of ~560V DC.
No. The BLX-SPI-3100 is a direct-drive solar pump inverter that operates battery-free, converting solar DC power directly into variable AC power for the pump motor, eliminating expensive battery replacement costs.
When the pump runs out of water, motor electrical load current drops sharply. The inverter detects this underload condition, immediately stops the motor, and displays a dry-run fault before restarting automatically after a user-configured recharge timer (e.g. 30 minutes).
Yes. The inverter supports dual AC/DC inputs, allowing an external manual or automatic changeover switch to feed power from a backup generator during overcast days or nighttime emergencies.
STARNEX provides a 12-month warranty with in-house technical setup and parameter programming at our Nairobi center.
