Why Choose the Lovato DOLSW7.5400 Direct-On-Line Starter with Isolator?
The Lovato DOLSW7.5400 is a high-quality direct-on-line (DOL) motor starter with integrated rotary isolator designed for the reliable starting, stopping and safe isolation of three-phase induction motors. As part of the proven Lovato L-Starter range, this enclosed starter provides dependable motor control together with a built-in isolating switch, making it ideal for industrial machinery, pumps, compressors, conveyors and manufacturing equipment.
The integrated rotary isolator enables the motor supply to be safely disconnected during servicing and maintenance, reducing installation complexity by eliminating the need for a separate external isolator in many applications. Housed within a durable IP65 insulated enclosure, the DOLSW7.5400 protects internal switching components against dust and water ingress, ensuring reliable operation in demanding industrial environments.
With a rated motor power of 7.5 kW, an 18 A AC-3 operational current and a 400 V AC control coil, the DOLSW7.5400 delivers dependable fixed-speed motor control. A compatible Lovato RF38 thermal overload relay is selected separately to provide overload protection matched to the motor full-load current.
Key Advantages
- Reliable direct-on-line motor starter with integrated rotary isolator.
- 7.5 kW motor rating for three-phase induction motors.
- 18 A AC-3 operational current.
- 400 V AC control coil.
- Integrated Start / Stop push-button controls.
- Integrated rotary isolator for safe electrical isolation.
- IP65 insulated enclosure for demanding industrial environments.
- Compatible with Lovato RF38 thermal overload relays.
Key Features
- Lovato L-Starter series.
- Direct-on-line starter with integrated rotary isolator.
- 7.5 kW rated motor power.
- 18 A AC-3 operational current.
- 400 V AC control voltage.
- Integrated Start / Stop push-button controls.
- Heavy-duty BF series contactor.
- Padlockable rotary isolator.
- IP65 insulated enclosure.
- Surface mounting design.
- Requires RF38 thermal overload relay.
Reliable Motor Starting with Integrated Isolation
Direct-on-line starters provide a simple and effective method of starting three-phase induction motors by applying full supply voltage directly to the motor terminals. The integrated rotary isolator enables the motor circuit to be safely isolated before maintenance or servicing, helping improve operator safety while simplifying installation.
The Lovato DOLSW7.5400 is widely used by OEM machine builders, panel builders and maintenance engineers requiring dependable motor control with integrated isolation for industrial applications.
Typical Applications
- Industrial pumps.
- Compressors.
- Conveyor systems.
- HVAC and ventilation equipment.
- Machine tools.
- Industrial automation systems.
- General-purpose three-phase motor control.