dolsw11400 Lovato standard dol starter 11kw 25a 400V

Why Choose the Lovato DOLSW11400 Direct On-Line Starter with Isolator?

The Lovato DOLSW11400 is a reliable and heavy-duty direct on-line (DOL) motor starter with integrated isolator designed for controlling three-phase motors in industrial and commercial environments. Manufactured by Lovato Electric, this enclosed motor starter combines dependable switching performance with safe local isolation for efficient motor management and maintenance operations.

Built for demanding industrial applications, the DOLSW11400 features a durable insulated enclosure and high-quality switching components that provide long-term reliability in harsh operating conditions. The integrated isolator allows safe disconnection during servicing, while the robust contactor assembly ensures efficient motor starting performance.

With a rated motor power of 11 kW, a maximum AC3 operational current of 25 A and a 400 V AC control voltage, the Lovato DOLSW11400 is ideal for pumps, compressors, conveyors, ventilation systems and industrial machinery requiring dependable direct-on-line motor starting.

Key Advantages

• Reliable DOL starter with integrated rotary isolator.
• 11 kW motor rating suitable for industrial applications.
• 25 A AC3 operational current capability.
• Heavy-duty Lovato BF series contactor for dependable motor switching.
• IP65 / IP68 insulated enclosure suitable for harsh environments.
• Integrated isolator improves maintenance safety and convenience.
• Compatible with RF38 thermal overload relays for motor protection.

Key Features

• Lovato L-Starter DOLSW series.
• 11 kW rated motor power.
• 25 A maximum AC3 current.
• 400 V AC control voltage.
• Integrated start/stop controls and rotary isolator.
• Heavy-duty insulated polycarbonate enclosure.
• Designed for use with RF38 overload relays.
• Suitable for three-phase industrial motor control systems.

Technical Specifications

• Manufacturer: Lovato Electric
• Series: L-Starter DOLSW Series
• Model: DOLSW11400
• Product type: Direct-on-line starter with isolator
• Rated motor power: 11 kW
• Horsepower rating: 15 HP
• Maximum AC3 current: 25 A
• Control voltage: 400 V AC
• Input phases: 3-phase
• Protection rating: IP65 / IP68 enclosure
• Enclosure material: Insulated polycarbonate
• Operating temperature: -25°C to +60°C
• Mounting type: Surface mounting
• Dimensions (H × W × D): approx. 225 × 110 × 148 mm
• Overload relay compatibility: RF38 series
• Compliance: IEC/EN 60947-1, IEC/EN 60947-4-1

Reliable Industrial Motor Starting and Isolation

Direct-on-line starters provide a straightforward and effective method of starting three-phase induction motors by applying full supply voltage directly to the motor terminals. This solution is widely used in industrial systems where simplicity, reliability and strong starting torque are required.

The integrated isolator fitted to the Lovato DOLSW11400 enables safe local disconnection of the motor supply during maintenance and servicing procedures. When combined with a suitable RF38 thermal overload relay, the starter provides dependable motor protection and long-term operational reliability.

Typical Applications

• Industrial pumps and booster systems.
• Ventilation and extraction equipment.
• Compressors and refrigeration systems.
• Conveyor and material handling systems.
• Water treatment and agricultural installations.
• General industrial machinery and automation systems.

Trusted by Industrial Engineers Worldwide

Lovato enclosed DOL starters are widely trusted by OEM machine builders, panel manufacturers and industrial maintenance engineers for dependable motor starting, safe isolation and long-term operational reliability.