sq4-30p-sd-240v chint 30kw metal clad star-delta starter 240v ip55

Why Choose the Chint SQ4-30P-SD-240V Star-Delta Starter?

The Chint SQ4-30P-SD-240V is a heavy-duty metal clad star-delta starter engineered for reliable reduced-current starting of three-phase industrial motors. Designed for demanding industrial environments, this enclosed starter helps reduce motor inrush current during startup, minimising electrical stress and improving motor longevity.

Part of the trusted Chint SQ4 motor starter series, this model combines robust enclosure protection with dependable motor control functionality for industrial automation systems. Its IP55-rated metal clad enclosure protects internal components against dust and moisture ingress, making it suitable for factories, workshops, process plants and heavy-duty industrial environments.

With a motor rating of 30 kW and a 240 V AC control circuit, the SQ4-30P-SD-240V is ideal for pumps, compressors, conveyors, fans and industrial machinery requiring smooth reduced-voltage motor starting and dependable operational reliability.

Key Advantages

• Reliable star-delta motor starter for industrial applications.
• 30 kW motor rating suitable for demanding industrial machinery.
• 240 V AC control voltage for industrial motor systems.
• Heavy-duty metal clad enclosure for enhanced durability.
• IP55 protection rating suitable for harsh industrial environments.
• Reduced motor starting current helps minimise electrical and mechanical stress.

Key Features

• Chint SQ4 enclosed star-delta starter series.
• 30 kW rated motor power.
• 240 V AC control circuit.
• Reduced-voltage star-delta motor starting.
• IP55 metal clad enclosure.
• Suitable for industrial three-phase motor applications.
• Surface mounting design for industrial installations.
• Compatible with NR2-36-32 thermal overload relay.
• Robust industrial-grade construction for long service life.

Technical Specifications

• Manufacturer: Chint
• Series: SQ4 Motor Starters
• Model: SQ4-30P-SD-240V
• Product type: Star-delta starter
• Motor rating: 30 kW
• Motor full load current: 52 A
• Delta loop current: 30.2 A
• Recommended overload relay: NR2-36-32
• Control voltage: 240 V AC
• Control frequency: 50 / 60 Hz
• Starter type: Reduced-voltage star-delta starter
• Enclosure type: Metal clad steel enclosure
• Protection rating: IP55
• Mounting type: Surface mounting
• Motor supply: Three-phase AC motors

Reduced Current Motor Starting for Industrial Systems

Star-delta starters reduce motor starting current by initially connecting the motor windings in a star configuration before automatically switching to delta operation once the motor reaches operating speed. This helps minimise voltage dips, reduce mechanical stress and improve reliability in industrial motor systems.

The SQ4-30P-SD-240V is designed for industrial environments requiring dependable startup performance and rugged enclosure protection. Its IP55-rated metal clad enclosure helps safeguard internal components against dust and moisture ingress while supporting long-term operational reliability in demanding applications.

Typical Applications

• Industrial pumps and compressors.
• Ventilation systems and industrial fans.
• Conveyor and material handling equipment.
• Production and processing machinery.
• Water treatment and utility systems.
• General industrial motor control applications.

Trusted by Industrial Engineers Worldwide

Chint SQ4 star-delta starters are widely used across industrial motor control systems where reduced-current motor starting, rugged enclosure protection and dependable long-term operation are essential.