WSTF112 5.5kW 6P 3600r/min 180Hz
| Type | Frame size | Rated Speed | Rated Frequency | Number of Pole Pairs | Rated Power | Rated Torque | Back EMF at Rated Speed | Rated Current | Efficiency | Noise | Vibration | Weight |
| nN (r/min) |
(Hz) | Pole | PN (kW) |
Mn(Nm) | EN (V) |
IN (Arms) |
η(%) | dB(A) | (mm/s) | (kg) | ||
| WSTF112-3600-5.5 | 112M | 3600 | 180 | 6 | 5.5 | 14.6 | 340 | 10.0 | 92.6 | 72 | 1.6 | 40 |
Key words:

The WSTF Series Inverter‑integrated PM Synchronous Motors is a new‑generation integrated drive product launched by Wonder Electric for intelligent water supply applications.
Integrating permanent magnet synchronous motor, intelligent variable frequency drive, PLC logic and IoT technology, the product enables intelligent control, high‑efficiency operation and easy management of water supply systems.
Compared with conventional water supply systems, the WSTF Series effectively reduces energy consumption, saves installation space and simplifies maintenance procedures. It delivers a more stable, efficient and intelligent water supply solution for commercial buildings.

- Multi‑pump automatic alternation
- Intelligent constant pressure supply
- Remote monitoring
- IoT access
- Fire priority control
- PM synchronous technology
- High‑efficiency drive algorithm
- Sleep energy‑saving mode
- On‑demand supply control
- Motor + drive + control deep integration
- Simplified installation
- Less external equipment
- Space saving
Key Features

Auto shutdown upon water shortage

Automatically adjust operating status

Extend equipment service life

Automatically activate
protection logic

water hammer impact

under emergency
working conditions
Technical Advantages

- High‑speed computing
- Adaptive vector control
- Precise torque control
- Fast dynamic response

- Three‑phase induction motors
- Permanent magnet synchronous motors

- Pump rooms
- Underground equipment rooms
- Humid environments
- Dusty environments
Application Scenarios

Energy‑efficient Operation

Intelligent Management

Safety Assurance

Lower Energy Consumption

Remote Monitoring
Why Choose WSTF?
Smarter Water Supply Control
Lower Energy Consumption
Easier Installation & Maintenance
More Reliable System Operation
Higher ROI
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