Lovato 51ADX0075B ADX series 75 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.
£3,530.89
The Lovato 51ADX0075B is an advanced three-phase soft starter designed for controlled starting and stopping of asynchronous three-phase motors in demanding industrial applications. As part of the Lovato Electric ADX...B series, it is designed for severe-duty starting applications with a starting current of up to 5 × Ie.
This soft starter provides torque or voltage ramp starting with current limitation and incorporates an integrated bypass contactor. Motor current thermal protection, torque control, kick start, dynamic braking, a PTC input, event logging and RS232 communication provide comprehensive control and protection functionality for industrial motor systems.
With a rated starter current of 75 A, the 51ADX0075B supports IEC motor ratings of 18.5 kW at 230 V AC, 37 kW at 400 V AC and 45 kW at 500 V AC. Its three-phase 208–500 V AC operating range, integrated bypass and advanced starting functions make it suitable for severe-duty machinery and automation applications.
Soft starters such as the Lovato 51ADX0075B 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 severe-duty industrial applications.
The integrated bypass contactor provides an efficient operating arrangement after starting, while torque ramp, voltage ramp and free-wheel stopping modes provide flexibility for different motor and machinery requirements. Motor current thermal protection, PTC input, kick start, dynamic braking, event logging and RS232 communication further enhance control and diagnostic capabilities.
| HS Code | 85371098 |
|---|---|
| Manufacturer | Lovato Electric |
| Series | ADX...B |
| Model | 51ADX0075B |
| Product type | Soft starter |
| Motor type | Asynchronous three-phase |
| Rated starter current | 75 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 | 18.5 kW |
| IEC motor power at 400 V AC | 37 kW |
| IEC motor power at 500 V AC | 45 kW |
| Number of controlled phases | 3 |
| Built-in bypass | Yes |
| Cooling system | Forced |
| 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 |
| Braking method | DC dynamic braking with external relay |
| Protection rating | IP20 |
| Pollution degree | 3 |
| Mounting type | Screw fixing |
| Dimensions (W × H × D) | 157 × 534 × 250 mm |
| Weight | 14.4 kg |
The 51ADX0075B is designed for controlled starting and stopping of three-phase asynchronous motors, including severe-duty applications with starting current up to 5 × Ie.
The Lovato 51ADX0075B has a rated starter current of 75 A.
Under its IEC ratings at up to 40°C, the 51ADX0075B is rated for 18.5 kW at 230 V AC, 37 kW at 400 V AC and 45 kW at 500 V AC.
Yes. The 51ADX0075B includes an integrated bypass contactor for operation after the motor starting sequence.
The soft starter supports torque or voltage ramp starting with current limitation and provides torque ramp, voltage ramp and free-wheel stopping modes, together with DC dynamic braking using an external relay.
Lovato Electric ADX soft starters provide advanced starting and stopping control for three-phase asynchronous motors, combining torque control, current limitation, integrated motor protection and 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...