18.5 kW VFD | 18.5 kW Variable Frequency Drive 220V & 380V Three Phase | SHZK

18.5 kW (25 HP) Variable Frequency Drive – SHZK 300N Series

Product Overview

The SHZK 18.5 kW (25 HP) variable frequency drive is a medium AC drive built for pumps, fans, compressors, conveyors and process machinery. It uses sensorless vector control for high starting torque and accurate speed regulation, and includes a built-in PID controller, Modbus RTU communication and comprehensive motor protection. Every rating is factory tested before shipment, and the same platform runs from 0.75 kW up to 800 kW so spare parts and parameter settings stay consistent across your whole line.

Technical Specifications

Parameter	Value
Rated Power	18.5 kW (25 HP)
Output Voltage	3-Phase AC 0-480V (T4) / 0-240V (T2) / 0-400V (S3)
Output Frequency	0-500 Hz
Control Mode	Sensorless Vector Control (SVC) / V/F
Overload Capacity	150% for 60s, 180% for 3s (heavy duty)
Protection Class	IP20
Enclosure	280 × 150 × 196

Available Series at 18.5 kW

This power rating is available in the following SHZK 300N series. Choose the series that matches your supply and motor:

Series	Input	Output	Input Current	Output Current	Model Code
300N T4 Series	3-Phase 380-480V	3-Phase 0-480V	38.5 A	37 A	300N-18.5GB-T4
300N T2 Series	3-Phase 200-240V	3-Phase 0-240V	76 A	75 A	300N-18.5G-T2
300N S3 Series	1-Phase 200-240V	3-Phase 0-400V	87 A	37 A	300N-18.5PB-S3

Typical Applications

• Process water pumps
• Cooling tower and HVAC fans
• Screw air compressors
• Belt conveyors
• Extruders and mixers

Why Choose SHZK VFD?

• 10+ years of VFD manufacturing experience
• CE certified, ISO 9001 quality management
• Full range from 0.75 kW to 800 kW
• Competitive factory-direct pricing
• Technical support and after-sales service