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51ADX1200 – SOFT STARTER ADX1200
Lovato 51ADX1200 ADX soft starter for severe-duty three-phase motor starting, predisposed for external bypass contactor, with 1200 A rated starter current, 208-415 V AC supply, 208-240 V AC auxiliary supply and IP00 protection.
Why Choose the Lovato 51ADX1200 ADX Soft Starter?
The Lovato 51ADX1200 is a heavy-duty three-phase ADX soft starter designed for controlled starting and stopping of very large asynchronous motors in demanding industrial applications. Part of the Lovato ADX severe-duty soft starter series, this advanced motor controller provides smooth acceleration, reduced starting current and improved protection for high-power motor-driven equipment.
Designed for large industrial plants, OEM machinery and automation systems, the 51ADX1200 provides advanced motor management functions including current limiting, torque control, kick start, dynamic braking, motor thermal protection, PTC input monitoring, event logging and RS232 communication. The unit is predisposed for connection to an external bypass contactor, allowing efficient motor operation after acceleration while supporting flexible electrical panel designs.
With a 1200 A rated starter current, three-phase 208–415 V AC operation, and motor ratings up to approximately 710 kW at 400 V AC and 800 kW at 500 V AC, the Lovato 51ADX1200 is suitable for large pumps, fans, compressors, conveyors and heavy industrial machinery requiring reliable soft starting and motor protection.
Key Advantages
- Advanced ADX soft starter for very large three-phase motor applications.
- 1200 A rated starter current suitable for heavy industrial motor control.
- External bypass contactor ready design for flexible installation configurations.
- Current limiting and torque control reduce electrical and mechanical stress during startup.
- Built-in motor thermal protection and PTC input monitoring.
- Advanced diagnostics with event logging and RS232 communication.
Key Features
- Lovato ADX soft starter series.
- Advanced three-phase motor control.
- 1200 A rated starter current.
- External bypass contactor compatible.
- 208–415 V AC operational voltage.
- 208–240 V AC auxiliary supply voltage.
- 355 kW motor rating at 230 V AC.
- 710 kW motor rating at 400 V AC.
- 800 kW motor rating at 500 V AC.
- Severe-duty starting capability with 5 × Ie starting current.
- Torque control functionality.
- Adjustable current limit starting.
- Kick start function.
- Dynamic braking capability.
- Electronic motor thermal protection.
- PTC motor protection input.
- Event log diagnostics.
- RS232 communication interface.
- Backlit LCD display and keypad.
- Forced cooling system.
Smooth Motor Starting for Industrial Machinery
Soft starters such as the Lovato 51ADX1200 gradually control motor voltage and current during startup, reducing high inrush currents and minimising mechanical shock. This helps extend motor life, protect connected equipment and improve overall system reliability.
The ADX series provides advanced motor control beyond basic voltage ramp starting, offering torque management, current limitation, dynamic braking and detailed monitoring functions. The external bypass contactor configuration allows efficient running operation after acceleration while supporting custom industrial panel designs.
Typical Applications
- Large industrial pump systems.
- Fans and ventilation equipment.
- Compressors and heavy machinery.
- Conveyors and bulk material handling systems.
- Production and processing equipment.
- OEM automation systems.
- High inertia motor applications requiring controlled starting.
Technical Specifications
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| Voltage | 230 V, 400 V | |
|---|---|---|
| Motor Protection | Yes | |
| Current | 1200 A | |
| Power | 710 kW | |
| Phase | Three Phase | |
| IP Rating | IP00 | |
| Series | ADX Soft Starters | |
| Product type | Soft starter | |
| Product designation | ADX | |
| Control type | Advanced three-phase control | |
| Motor type | Three-phase asynchronous motor | |
| Number of controlled phases | 3 | |
| Rated starter current | 1200 A | |
| Rated supply voltage | 208-415 V AC | |
| Auxiliary supply voltage | 208-240 V AC | |
| Rated frequency | 50 / 60 Hz | |
| IEC motor power at 230 V | 355 kW | |
| IEC motor power at 400 V | 710 kW | |
| IEC motor power at 500 V | 800 kW | |
| UL motor rating at 220-240 V | 450 HP | |
| UL motor rating at 380-415 V | 900 HP | |
| UL motor rating at 440-480 V | 900 HP | |
| Duty type | Severe duty, starting current 5 x Ie | |
| Built-in bypass | No, predisposed for external bypass contactor | |
| Cooling system | Forced cooling | |
| Startup method | Torque or voltage ramp with current limitation | |
| Stop method | Torque ramp, voltage ramp or free-wheel stop | |
| Braking method | DC dynamic braking with external relay | |
| Torque control | Yes | |
| Motor overload protection | Integrated electronic protection | |
| Additional functions | Current limit, kick start, dynamic braking, PTC input, motor hour counter, startup counter, clock calendar and remote external keypad support | |
| Display | Backlit LCD, 2 x 16 characters | |
| Digital inputs | 3 | |
| Digital outputs | 4 | |
| Analogue input | 1 | |
| Analogue output | 1 | |
| Protection rating | IP00 | |
| Mounting type | Screw fixing / panel mounting | |
| Dimensions (W x H x D) | approx. 910 x 950 x 442 mm | |
| Operating temperature | -10 to +55 °C | |
| Storage temperature | -30 to +70 °C | |
| Pollution degree | 3 | |
| Weight | approx. 234 kg | |
| Package dimensions | approx. 910 x 950 x 442 mm | |
| GTIN / EAN | 8013975068090 | |
| HS Code | 85371098 | |
| Standards | IEC/EN 60947-1, IEC/EN 60947-4-2 |
Frequently Asked Questions
What is the Lovato 51ADX1200 used for?
The Lovato 51ADX1200 is used to provide controlled soft starting and stopping of large three-phase asynchronous motors in industrial applications.
What motor power can the 51ADX1200 control?
The soft starter supports motors up to approximately 710 kW at 400 V AC and 800 kW at 500 V AC.
Does the Lovato 51ADX1200 include a bypass contactor?
No. The unit is predisposed for connection to an external bypass contactor.
What protection features are included?
The soft starter includes motor thermal protection, PTC input monitoring, current protection and diagnostic event logging.
What type of motor control does this soft starter provide?
The ADX series provides advanced three-phase motor control with current limiting, torque control, kick start and dynamic braking functionality.
Trusted by Industrial Control Engineers
Lovato Electric ADX soft starters provide advanced motor starting solutions for industrial automation engineers requiring smooth acceleration, reduced mechanical stress and reliable motor protection.
