1.5kW (2HP) Variable Frequency Drive — 3-Phase VFD Frequency Inverter, 0–500Hz AC Motor Speed Controller
Compact 1.5 kW / 2 HP variable frequency drive (VFD) for precise speed and torque control of three-phase AC motors. Available with single-phase 220V input to three-phase 220V output, or three-phase 380V–480V input/output — an energy-saving, soft-starting frequency inverter / AC drive / motor speed controller for pumps, fans, conveyors, CNC, compressors and machine tools.
- Power: 1.5 kW (2 HP), constant & variable torque
- Output frequency: 0–500 Hz, V/F & sensorless vector
- Overload: 180% for 10 s (G model)
- Built-in: brake unit, RS485 / Modbus, PID
- Protection: IP20, full electronic fault protection
- Warranty: 18 months, lifetime technical support
Need this 1.5kW (2HP) drive? Get a factory-direct quote & lead time now.
1Why motor owners switch to a VFD
Direct-on-line (DOL) starting wastes energy and stresses equipment. This 1.5kW VFD solves the four most common problems:
2Product details & build quality
Real photos of the 300N drive — industrial-grade components, clearly labeled terminals and efficient cooling.
3Choose your 1.5kW model
Two input configurations for the same 1.5kW / 2HP rating. Not sure which you need? Send an inquiry and our engineer will size it by motor full-load current.
- Input current 14 A / Output current 3.8 A
- Dimensions 165×98×128 mm (H×W×D)
- Plastic shell (S type)
- Built-in brake unit
- Rated current 5 A
- Dimensions 165×98×128 mm (H×W×D)
- Plastic shell (S type)
- Constant-torque (G) application
Full specifications
| Parameter | Specification |
|---|---|
| Model | 300N-1.5PB-S3 / 300N-1.5GB-T4 |
| Rated power | 1.5 kW (2 HP) |
| Rated input voltage | 1-phase 220V ±15% (S3) / 3-phase 380–480V ±15% (T4) |
| Rated output voltage | 3-phase 0–input voltage |
| Input current / output current | 14 A / 3.8 A (S3); 5 A (T4) |
| Output frequency range | 0–500 Hz |
| Control mode | V/F control, sensorless vector control (SVC) |
| Frequency accuracy | Digital: ±0.01%; Analog: ±0.2% |
| Frequency resolution | 0.01 Hz (digital); 0.1% max frequency (analog) |
| Overload capacity | 150% for 60 s; 180% for 10 s (G type) |
| Torque boost | Manual / automatic torque boost |
| Starting torque | ≥150% at 0.5 Hz (SVC) |
| Carrier frequency | 0.5–16 kHz (adjustable) |
| Accel / decel time | 0.1–3600 s (independent accel & decel) |
| Multi-step speed | Up to 16 preset speeds (PLC / multi-speed) |
| Built-in PID | Yes, closed-loop process control |
| Brake unit | Built-in braking transistor |
| Communication | RS485, standard Modbus-RTU |
| Digital inputs (DI) | 7 configurable multi-function inputs |
| Analog I/O | AI: 0–10V / 4–20mA; AO: 0–10V / 0–20mA |
| Relay output | 1 programmable relay (Y1) |
| Protection functions | Overcurrent, overvoltage, undervoltage, overload, overheat, short circuit, phase loss, stall |
| Cooling method | Forced air cooling |
| Protection rating | IP20 |
| Installation | Wall / panel mount, DIN rail on compact sizes |
| Dimensions (H×W×D) | 165×98×128 mm |
| Shell type | Plastic (S) |
| Operating temperature | -10°C to +40°C (derate above 40°C) |
| Humidity | <95% RH, non-condensing |
| Warranty | 18 months |
4How to read the model number
Every SHZK model code tells you the series, power, motor type, braking unit and voltage — use it to select the exact drive you need.
Optional suffixes: -L = AC output reactor · -T = DC reactor. Not sure which code fits your motor? Send us your motor nameplate (kW, voltage, current) and we will confirm the exact model before you order.
5Wiring diagrams & terminals
Clear power and control wiring make installation fast. Full diagram is included in the user manual.
6Applications
A versatile 1.5kW AC drive for constant-torque and variable-torque loads.
7Customer & field installations
SHZK drives and control cabinets in real workshops and on real production lines.
8Meet us at international trade shows
We exhibit at leading international electronic & electrical product fairs and welcome buyers at our booth.
9Certifications & qualifications
Our products and quality system are independently certified. Copies of certificates are available on request with your order.
Questions about wiring, sizing or G/P model choice? Our engineers help before you order.
10Video: factory, operation & field demo
Three short videos show how our drives are built, how easy they are to operate, and how they run in the field — English voice-over included.
11Factory, manufacturing & quality control
In-house SMT, CNC machining, aging and QC — every drive is fully tested before it leaves the factory.
12Packaging & shipping
Secure export packaging protects each inverter in transit. We support courier, air and sea freight (FOB / CIF / DDP by request).
Standard package includes:
- 1× 1.5kW VFD unit
- User manual (English)
- Anti-static bag + foam + export carton/crate
- Custom labels & neutral/OEM boxes available
13More from our full product range
One supplier for the complete VFD line — send an inquiry and tell us the models or power range you need.
Available series & specialty products:
300N S3 · 1-phase input VFD
300N T2 · 3-phase heavy duty
PVT2 / PVT4 · solar pump inverter
Single-phase to 3-phase VFD
Soft starters
LV power & control cabinets
0.4 kW – 630 kW
14Why buyers choose SHZK
Factory-direct pricing
No middleman; competitive OEM/wholesale pricing with low MOQ.
Engineer-to-engineer support
Sizing, wiring and parameter help before and after the sale.
100% tested
Every unit is full-load burn-in tested — low defect, fast commissioning.
OEM / ODM
Custom logo, enclosure color, label and firmware on request.
15Frequently asked questions
Can this 1.5kW VFD run a 2HP 3-phase motor from single-phase 220V power?
How do I size a VFD for my 1.5kW motor — by kW or by current?
Does this AC drive support Modbus RS485 communication and PID control?
What is the difference between G (constant torque) and P (variable torque) models?
Is a braking resistor included, and when do I need one?
Can you provide OEM branding and custom parameters?
What is the lead time and warranty?
Do you supply CE-certified drives for export to Europe?
RRelated solutions
Explore related VFD solutions and technical guides from SHZK.
Run a standard 3-phase motor where only single-phase supply is available.
Constant-pressure, energy-saving pump speed control.
Soft start and pressure control for air compressors.
Direct PV MPPT pump drive with no battery required.
Smooth start and speed control for conveyor systems.
Full parameters, wiring diagrams and fault-code guides.
Get your 1.5kW VFD quote today
Tell us your motor power, input voltage and application — our engineer will confirm the right model and reply within 24 hours.
Request a Quote
Factory direct · 18-month warranty · 100% full-load tested · OEM / ODM welcome