Intelligent One Key Start Inverter Modbus RTU Open Loop Vector Control For Air Compressor
Modbus RTU Inverter
,Air Compressor Start Inverter
,Start Inverter Vector Control
The SP600 series is a dedicated integrated inverter designed for air compressors, supporting both wall mounting and floor standing installation. It adopts error‑proof pluggable terminals for fast and reliable wiring. Built‑in detection and protection circuits integrate PT100, PTC, pressure sensors, solenoid valves, and fans, enabling comprehensive monitoring and safe operation. Equipped with dual‑channel RS485 (Modbus RTU) as standard, it supports HMI and IoT expansion for easy one‑click startup.
- Supports both wall-mounted and floor-standing configurations to adapt to diverse on-site layouts.
- Features pluggable terminals with anti-misconnection design for fast, secure, and mistake-free installation.
- Integrated PT100, PTC, pressure sensor, solenoid valve and fan protection circuits
- Dual-channel RS485 Modbus RTU, supporting HMI/IoT expansion and one-click startup

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Dimension |
SP600T-37KY-2 / SP600T-75KY-4 |
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W (mm) |
338 |
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H (mm) |
455 |
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H1 (mm) |
485 |
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D (mm) |
240 |
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A (mm) |
270 |
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B (mm) |
470 |
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Φd (mm) |
9 |
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Category |
Item |
SP600 Specification |
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Basic control functions |
Control mode |
Open loop vector control, V/F control, Support PM |
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Maximum frequency |
0~599Hz |
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Carrier frequency |
0.5kHz~8kHz, carrier frequency is automatically adjusted based on the load features. |
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Input frequency resolution |
Digital setting: 0.01HzAnalog setting: maximum frequency × 0.025% |
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Startup torque |
0.5 Hz/150% |
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Speed range |
1:100 |
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Speed stability accuracy |
± 0.2% |
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Torque control accuracy |
±10% |
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Overload capacity |
60s for 150% of the rated current, 3s for 180% of the rated current. |
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Communication methods |
RS485 |
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Input and output interfaces |
Analog Input |
1 pressure sensor: 4 ~ 20mA input2 temperature sensor: PT100 |
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Digital input |
2 digital input1 PTC circuit protection (compatible with normal digital inputs) |
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Digital Output |
1 normally open relay output (built in 220VAC voltage) |
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LED diode display |
Standard 3 LED display |
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Protection |
Protection functions |
Motor overheating protection (PTC), power-to-ground short-circuit protection, inverter over-current, overload, over voltage, under voltage, over temperature, output phase, communication fault, fault current detection, EEPROM write failure and so on. |
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Environment |
Installation location |
Indoor, free from direct sunlight, dust, corrosive gas, combustible gas, oil smoke, vapor, drip or salt. |
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Altitude |
Below 1000m |
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Ambient temperature |
-10°C~40°C (de-rating if the ambient temperature is between 40°C and 50°C) |
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Humidity |
Below 95%RH, (non-condensing) |
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Vibration |
Below 5.9 m/s² (0.6 g) |
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Storage temperature |
-20°C~60°C |

Shenzhen Bebaios Machinery Co., Ltd. is a professional manufacturer and supplier dedicated to industrial air compressor systems and pneumatic equipment. Based in Shenzhen, China—a global center for advanced manufacturing and technological innovation—we fully utilize the region’s robust supply chain and superior manufacturing resources. Bebaios is committed to developing and supplying high-performance, energy-efficient air compression and vacuum solutions for customers around the world.
Der SP600-Wechselrichter für Luftkompressoren verfügt über steckbare Anschlüsse, zwei RS485-Modbus-RTU und integrierte Schutzschaltungen. Unterstützt Wand-/Bodenmontage, HMI/IoT-Erweiterung und Ein-Tasten-Start. CE/ISO-zertifiziert mit 180-tägiger Garantie.