Lovato 51ADX0017B ADX series 17 A three-phase soft starter with a 208–500 V AC operating range, torque control, current limitation and an integrated bypass contactor for severe-duty asynchronous motor starting.
£1,940.87
The Lovato 51ADX0017B is an advanced three-phase soft starter designed for progressive starting and stopping of asynchronous three-phase motors. As part of the Lovato Electric ADX...B series, it is specifically designed for severe-duty starting applications with a starting current of up to 5 × Ie.
This soft starter combines torque control and maximum starting-current limitation with an integrated bypass contactor. Once the motor has completed its start, the bypass contactor helps minimise power dissipation, reducing cooling requirements within the electrical panel and supporting a more compact installation.
With a rated starter current of 17 A, the 51ADX0017B supports IEC motor ratings of 4 kW at 230 V AC, 7.5 kW at 400 V AC and 9 kW at 500 V AC. Its three-phase 208–500 V AC operating range, integrated motor protection functions and flexible starting and stopping modes make it suitable for demanding industrial motor-control applications.
Soft starters such as the Lovato 51ADX0017B progressively control motor starting rather than applying full supply voltage immediately. Its torque or voltage ramp starting modes with current limitation provide controlled acceleration for asynchronous three-phase motors and help manage starting current in demanding industrial installations.
The integrated bypass contactor reduces dissipation after the motor reaches normal operating speed, while the available torque ramp, voltage ramp and free-wheel stopping modes provide flexibility for different machinery requirements. Integrated protection and control functions further support dependable motor operation in industrial systems.
| HS Code | 85371098 |
|---|---|
| Manufacturer | Lovato Electric |
| Series | ADX...B |
| Model | 51ADX0017B |
| Product type | Soft starter |
| Motor type | Asynchronous three-phase |
| Rated starter current | 17 A |
| Rated operating voltage | 208–500 V AC |
| Auxiliary supply voltage | 208–240 V AC |
| Rated frequency | 50 / 60 Hz |
| IEC motor power at 230 V AC | 4 kW |
| IEC motor power at 400 V AC | 7.5 kW |
| IEC motor power at 500 V AC | 9 kW |
| Number of controlled phases | 3 |
| Built-in bypass | Yes |
| Cooling system | Natural |
| Display | Backlit LCD, 2 × 16 characters |
| Starting method | Torque or voltage ramp with current limitation |
| Stopping method | Torque ramp, voltage ramp or free-wheel stop |
| Protection rating | IP20 |
| Mounting type | Screw fixing |
| Dimensions (W × H × D) | 157 × 372 × 223 mm |
| Weight | 8.97 kg |
The 51ADX0017B is designed for progressive starting and stopping of three-phase asynchronous motors, including severe-duty applications requiring controlled starting current.
The Lovato 51ADX0017B has a rated starter current of 17 A.
Under its IEC ratings at up to 40°C, the 51ADX0017B is rated for 4 kW at 230 V AC, 7.5 kW at 400 V AC and 9 kW at 500 V AC.
Yes. The 51ADX0017B includes an integrated bypass contactor, which helps minimise power dissipation after the motor has completed its start.
The soft starter supports torque or voltage ramp starting with current limitation and provides torque ramp, voltage ramp and free-wheel stopping modes.
Lovato Electric ADX soft starters provide advanced starting and stopping control for three-phase asynchronous motors, combining torque control, current limitation, motor protection functions and integrated bypass technology for demanding industrial applications.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...