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YDSW11400 Lovato star delta starter with isolator 400V 11KW 15HP 22Amp
Lovato YDSW11400 star-delta motor starter with integrated isolator rated for 11 kW three-phase motors with 22 A AC3 current rating and 400 V AC control voltage for reduced-current motor starting.
£390.94
Why Choose the Lovato YDSW11400 Star Delta Starter with Isolator?
The Lovato YDSW11400 is a high-quality enclosed star delta starter with integrated rotary isolator designed for the reduced-current starting of three-phase induction motors. Manufactured by Lovato Electric, this industrial motor starter combines dependable motor control with safe local isolation, helping reduce electrical inrush current, minimise mechanical stress and extend the operating life of motors and driven equipment.
Designed for demanding industrial environments, the YDSW11400 is housed in a durable IP65 insulated polycarbonate enclosure with integrated start and stop controls. The built-in rotary isolator enables safe maintenance and equipment isolation, making the starter ideal for OEMs, panel builders and maintenance engineers across a wide range of industrial applications.
With a rated motor capacity of 11 kW (15 HP), a 22 A AC-3 operational current and a 400 V AC control voltage, the Lovato YDSW11400 provides reliable reduced-voltage starting for pumps, compressors, conveyors, fans and industrial process machinery. A compatible RF38 thermal overload relay is selected separately to complete the installation.
Key Advantages
- Complete star delta starter with integrated rotary isolator.
- 11 kW (15 HP) motor capacity.
- 22 A AC-3 operational current.
- 400 V AC control voltage.
- IP65 insulated enclosure for demanding industrial environments.
- Reduces motor starting current and mechanical stress compared with direct-on-line starting.
Key Features
- Lovato L-Starter YDSW series.
- Automatic star delta transition.
- Integrated rotary isolator.
- 11 kW rated motor power.
- 22 A AC-3 current rating.
- 400 V AC control voltage.
- Heavy-duty insulated polycarbonate enclosure.
- Compatible with RF38 thermal overload relays.
Reliable Reduced Voltage Motor Starting
Star delta starters reduce the current drawn during motor start-up by initially connecting the motor windings in a star configuration before automatically switching to delta operation. This controlled process helps reduce voltage dips, minimise mechanical shock and improve the service life of motors, gearboxes and driven equipment.
The integrated rotary isolator provides a safe method of locally disconnecting the starter during maintenance, making the YDSW11400 particularly suitable for industrial installations where both operational reliability and maintenance safety are essential.
Typical Applications
- Industrial pumps.
- Air compressors.
- Conveyor and material handling systems.
- Ventilation and extraction equipment.
- Water treatment installations.
- General industrial automation machinery.
Technical Specifications
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| With Isolator | Yes | |
|---|---|---|
| Starter Type | Star Delta | |
| Power | 11 kW | |
| Current | 22 A | |
| Voltage | 400 V | |
| Phase | Three Phase | |
| IP Rating | IP65 | |
| Coil / Supply Voltage | 400 V AC | |
| Series | L-Starter YDSW Series | |
| Product type | Star-delta starter with isolator | |
| Rated motor power | 11 kW | |
| Horsepower rating | 15 HP | |
| Maximum AC3 current | 22 A | |
| Control voltage | 400 V AC | |
| Input phases | 3-phase | |
| Protection rating | IP65 enclosure | |
| Enclosure material | Insulated polycarbonate | |
| Mounting type | Surface mounting | |
| Dimensions (H × W × D) | approx. 220 × 280 × 170 mm | |
| Overload relay compatibility | RF38 series | |
| Starting method | Automatic star-delta transition | |
| Compliance | IEC/EN 60947-1, IEC/EN 60947-4-1 |
Frequently Asked Questions
What is the Lovato YDSW11400 used for?
The YDSW11400 is used for reduced-current star delta starting of three-phase induction motors and includes an integrated rotary isolator for safe local isolation.
What motor size can this starter control?
The starter is designed for motors rated up to 11 kW (15 HP).
What control voltage does the starter require?
The Lovato YDSW11400 operates using a 400 V AC control voltage.
Does the starter include overload protection?
No. A compatible Lovato RF38 thermal overload relay must be selected separately to provide motor overload protection.
What is the benefit of the integrated isolator?
The integrated rotary isolator allows safe local disconnection during maintenance, improving operator safety and simplifying servicing procedures.
Trusted for Industrial Motor Control
Lovato Electric star delta starters with integrated isolators are trusted by OEMs, panel builders and industrial maintenance engineers for reliable motor starting, enhanced safety and dependable long-term performance.
