YD15400 Lovato star delta starter 400VAC 15KW 20HP 28Amp

Why Choose the Lovato YD15400 Star-Delta Starter?

The Lovato YD15400 is a high-performance star-delta motor starter designed for reduced-current starting of three-phase induction motors in industrial and commercial environments. Manufactured by Lovato Electric, this enclosed starter helps reduce inrush current and mechanical stress during startup, making it ideal for larger motors and demanding machinery applications.

The star-delta starting method initially connects the motor windings in a star configuration to lower startup current and torque before automatically switching to delta operation for full running performance. This controlled starting process helps reduce supply voltage dips, improve equipment longevity and enhance system reliability.

With a rated motor power of 15 kW, a 28 A AC3 operational current rating and a 400 V AC control voltage, the Lovato YD15400 is suitable for pumps, compressors, conveyors, fans and industrial process machinery requiring dependable reduced-current motor starting.

Key Advantages

• Reliable star-delta starter for reduced-current motor starting.
• 15 kW motor rating suitable for industrial machinery.
• 28 A AC3 operational current capability.
• Reduces motor starting current and mechanical stress.
• 400 V AC control voltage for industrial control systems.
• IP65 insulated enclosure suitable for demanding environments.
• Compatible with RF38 thermal overload relays for motor protection.

Key Features

• Lovato L-Starter YD series.
• 15 kW rated motor power.
• 28 A maximum AC3 current.
• 400 V AC control voltage.
• Automatic star-delta transition for controlled motor startup.
• Heavy-duty insulated polycarbonate enclosure.
• Integrated start and stop controls.
• Designed for use with RF38 overload relays.

Technical Specifications

• Manufacturer: Lovato Electric
• Series: L-Starter YD Series
• Model: YD15400
• Product type: Star-delta motor starter
• Rated motor power: 15 kW
• Horsepower rating: 20 HP
• Maximum AC3 current: 28 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
• Compliance: IEC/EN 60947-1, IEC/EN 60947-4-1

Efficient Reduced-Current Motor Starting

Star-delta starters are widely used for larger three-phase motors where reducing startup current is important for maintaining electrical system stability and protecting connected equipment. By initially connecting the motor in star configuration, the starter lowers current draw before automatically switching to delta operation for full-load running.

The Lovato YD15400 helps reduce voltage dips, minimise wear on motors and driven equipment, and improve operational lifespan. This makes it particularly suitable for industrial applications involving pumps, compressors, conveyors and ventilation systems.

Typical Applications

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

Trusted by Industrial Engineers Worldwide

Lovato star-delta starters are widely trusted by OEM machine builders, panel manufacturers and industrial maintenance engineers for reliable reduced-current motor starting and dependable long-term industrial performance.