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dolsw5.5400 Lovato standard dol starter 5.5kw 12a 230VAC
Lovato DOLSW5.5400 direct-on-line motor starter with integrated isolator rated for 5.5 kW three-phase motors with 12 A AC3 current rating and 400 V AC control voltage.
£144.34
Why Choose the Lovato DOLSW5.5400 Direct-On-Line Starter with Isolator?
The Lovato DOLSW5.5400 is a reliable direct-on-line (DOL) motor starter with integrated rotary isolator designed for the safe starting, stopping and isolation of three-phase induction motors. As part of the trusted Lovato L-Starter range, this enclosed starter combines dependable motor control with a built-in isolator, making it ideal for industrial machinery, pumps, compressors, conveyors and manufacturing equipment.
The integrated rotary isolator allows the motor supply to be safely disconnected before maintenance or servicing, reducing installation time by eliminating the need for a separate external isolator in many applications. Housed within a durable IP65 insulated enclosure, the DOLSW5.5400 provides excellent protection against dust and water ingress for reliable operation in demanding industrial environments.
With a rated motor power of 5.5 kW, a 12 A AC-3 operational current and a 400 V AC control coil, the DOLSW5.5400 offers dependable motor control for fixed-speed applications. 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.
- 5.5 kW motor rating for three-phase induction motors.
- 12 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 suitable for industrial environments.
- Compatible with Lovato RF38 thermal overload relays.
Key Features
- Lovato L-Starter series.
- Direct-on-line starter with rotary isolator.
- 5.5 kW rated motor power.
- 12 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 Safe Isolation
Direct-on-line starters apply full supply voltage directly to three-phase induction motors, providing a simple and cost-effective method of motor starting. The integrated rotary isolator allows the power supply to be safely disconnected before maintenance, improving operator safety and simplifying installation.
The Lovato DOLSW5.5400 is ideal for machine builders, panel manufacturers 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.
Technical Specifications
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| With Isolator | Yes | |
|---|---|---|
| Starter Type | DOL | |
| Power | 5.5 kW | |
| Current | 12 A | |
| Voltage | 400 V | |
| Phase | Three Phase | |
| IP Rating | IP65 | |
| Coil / Supply Voltage | 400 V AC | |
| Series | L-Starter DOLSW Series | |
| Product type | Direct-on-line starter with isolator | |
| Rated motor power | 5.5 kW | |
| Horsepower rating | 7.5 HP | |
| Maximum AC3 current | 12 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. 193 × 88 × 134 mm | |
| Overload relay compatibility | RF25 series | |
| Compliance | IEC/EN 60947-1, IEC/EN 60947-4-1 |
Frequently Asked Questions
What is the Lovato DOLSW5.5400 used for?
It is designed to safely start, stop and isolate three-phase induction motors in industrial and commercial applications.
What motor size is this starter suitable for?
The DOLSW5.5400 is suitable for motors rated up to 5.5 kW.
What control voltage does this starter use?
This model is fitted with a 400 V AC control coil.
Does the starter include overload protection?
No. A compatible Lovato RF38 thermal overload relay must be selected separately to match the motor full-load current.
Why is the integrated isolator beneficial?
The built-in rotary isolator enables the motor supply to be safely disconnected for servicing or maintenance without requiring a separate external isolator.
Trusted for Industrial Motor Control
Lovato L-Starter motor starters with integrated isolators are trusted by OEM manufacturers, panel builders and industrial engineers for dependable motor starting, safe isolation and reliable long-term performance.
