YD30400 Lovato star delta starter 400VAC 30KW 40HP 60Amp

Why Choose the Lovato YD30400 Star-Delta Starter?

The Lovato YD30400 is a powerful and reliable star-delta motor starter designed for reduced-current starting of large three-phase induction motors in demanding industrial and commercial applications. Manufactured by Lovato Electric, this enclosed starter helps minimise startup current and reduce mechanical stress on motors and driven equipment, making it ideal for heavy-duty machinery systems.

Using automatic star-delta transition technology, the YD30400 initially starts the motor in a star configuration to lower startup current and torque before switching to delta operation for full-load running. This controlled startup process helps improve power system stability, reduce voltage dips and extend motor operating life.

With a rated motor power of 30 kW, a 60 A AC3 operational current rating and a 400 V AC control voltage, the Lovato YD30400 is suitable for industrial pumps, compressors, conveyors, ventilation systems and process machinery requiring dependable reduced-current motor starting.

Key Advantages

• Reliable star-delta starter for reduced-current motor starting.
• 30 kW motor rating suitable for heavy-duty industrial machinery.
• 60 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 thermal overload relays for motor protection.

Key Features

• Lovato L-Starter YD series.
• 30 kW rated motor power.
• 60 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.
• Suitable for three-phase industrial motor control systems.

Technical Specifications

• Manufacturer: Lovato Electric
• Series: L-Starter YD Series
• Model: YD30400
• Product type: Star-delta motor starter
• Rated motor power: 30 kW
• Horsepower rating: 40 HP
• Maximum AC3 current: 60 A
• Control voltage: 400 V AC
• Input phases: 3-phase
• Protection rating: IP65 enclosure
• Enclosure material: Insulated polycarbonate
• Mounting type: Surface mounting
• Starting method: Automatic star-delta transition
• Suitable frequency: 50 / 60 Hz
• Compliance: IEC/EN 60947-1, IEC/EN 60947-4-1

Efficient Reduced-Current Motor Starting

Star-delta starters are commonly used for larger three-phase motors where reducing startup current is essential 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 normal running conditions.

The Lovato YD30400 helps reduce voltage dips, minimise wear on motors and driven machinery, and improve operational lifespan. This makes it particularly suitable for industrial applications involving pumps, compressors, conveyors and heavy-duty 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.
• Heavy-duty 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.