Lovato 51ADX0085B advanced three-phase soft starter rated at 85 A for 208–500 V AC asynchronous motors, with severe-duty starting capability, integrated bypass contactor and motor ratings up to 55 kW.
£3,874.91
The Lovato 51ADX0085B 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 soft starter series, it is designed for severe-duty starting with a starting current of up to 5 × Ie and incorporates an integrated bypass contactor.
The 51ADX0085B provides three-phase control with advanced motor starting functions including torque or voltage ramp starting with current limitation. It also supports torque-ramp, voltage-ramp and free-wheel stopping, together with motor thermal protection, kick start, dynamic braking, PTC input and event logging for comprehensive motor control and protection.
With a rated starter current of 85 A and a three-phase 208–500 V AC operational voltage, the 51ADX0085B supports IEC motor ratings of 22 kW at 230 V AC, 45 kW at 400 V AC and 55 kW at 500 V AC. Its integrated bypass contactor and forced cooling system make it suitable for demanding industrial motor-starting applications.
Soft starters control the voltage and current supplied to a motor during acceleration, reducing the electrical and mechanical stresses associated with direct-on-line starting. The Lovato 51ADX0085B provides three-phase control and multiple starting and stopping methods, allowing motor acceleration and deceleration to be tailored to the requirements of the driven equipment.
The integrated bypass contactor carries the motor current once the starting sequence is complete, while functions including current limitation, torque control, motor thermal protection and PTC monitoring provide comprehensive motor management. The built-in LCD interface and event logging also assist with configuration, monitoring and diagnostics in industrial installations.
| HS Code | 85371098 |
|---|---|
| Manufacturer | Lovato Electric |
| Series | ADX...B |
| Model | 51ADX0085B |
| Product type | Advanced three-phase soft starter |
| Motor type | Asynchronous three-phase |
| Rated starter current | 85 A |
| Rated operational voltage | 208–500 V AC |
| Auxiliary supply voltage | 208–240 V AC |
| Rated frequency | 50/60 Hz |
| Rated motor power at 230 V AC | 22 kW |
| Rated motor power at 400 V AC | 45 kW |
| Rated motor power at 500 V AC | 55 kW |
| Number of controlled phases | 3 |
| Built-in bypass | Yes |
| Cooling system | Forced cooling |
| Display | Backlit LCD, 2 × 16 characters |
| Starting method | Torque or voltage ramp with current limitation |
| Stopping methods | Torque ramp, voltage ramp and free-wheel stop |
| Braking method | DC dynamic braking with external relay |
| Digital outputs | 4 |
| Analogue outputs | 1 |
| Analogue output | 0–20 mA or 4–20 mA |
| Protection rating | IP20 |
| Pollution degree | 3 |
| Mounting type | Screw fixing |
| Operating temperature | -10 to +55 °C |
| Storage temperature | -30 to +70 °C |
| Maximum altitude without derating | 1000 m |
| Maximum relative humidity | 95% without condensation or dripping |
| Dimensions (W × H × D) | 157 × 534 × 250 mm |
| Weight | 14.4 kg |
| EAN | 8013975068250 |
The Lovato 51ADX0085B is an advanced three-phase soft starter used to provide controlled starting and stopping of asynchronous three-phase motors in demanding industrial applications.
The 51ADX0085B has a rated starter current of 85 A.
Under IEC ratings at up to 40 °C, the soft starter supports 22 kW at 230 V AC, 45 kW at 400 V AC and 55 kW at 500 V AC.
Yes. The Lovato 51ADX0085B has an integrated bypass contactor for operation after the motor starting sequence is complete.
The 51ADX0085B has a three-phase rated operational voltage of 208–500 V AC and requires a 208–240 V AC auxiliary supply.
Lovato Electric ADX soft starters provide advanced three-phase motor starting and stopping control, combining integrated motor protection, flexible control functions and built-in 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...