sq4-15p/is-sd-240v chint 15kw metal clad star-delta starter 240v ip55 with isolator

sq4-15p/is-sd-240v chint 15kw metal clad star-delta starter 240v ip55 with isolator

Chint SQ4-15P/IS-SD-240V 15 kW enclosed star-delta starter with isolator, 240 V AC control circuit and IP55 metal clad enclosure for industrial motor control applications.

SKU: SQ4-15P/IS-SD-240VAlt SKU: SQ415PISSD240VMPN: SQ4-15P/IS-SD-240V
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Why Choose the Chint SQ4-15P/IS-SD-240V Star-Delta Starter?

The Chint SQ4-15P/IS-SD-240V is a robust enclosed star-delta motor starter designed for reliable reduced-current starting of three-phase industrial motors. As part of the Chint SQ4 motor starter series, it combines durable metal clad construction with integrated isolation for safe maintenance and dependable industrial motor control.

This starter helps reduce motor inrush current during startup by initially operating the motor in star configuration before changing to delta operation. The enclosed design provides protection for internal components while supporting reliable operation in industrial environments.

With a 15 kW motor rating, 240 V AC control circuit, integrated isolator and IP55 metal clad enclosure, the SQ4-15P/IS-SD-240V is suitable for pumps, compressors, conveyors, fans and industrial machinery requiring dependable reduced-voltage motor starting.

Key Advantages

  • Reliable star-delta motor starter for industrial applications.
  • 15 kW motor rating suitable for medium-duty three-phase motors.
  • 240 V AC control voltage for industrial motor control systems.
  • Integrated isolator switch for safe maintenance procedures.
  • IP55 metal clad enclosure provides protection against dust and moisture.
  • Reduced starting current helps minimise electrical and mechanical stress.

Key Features

  • Chint SQ4 enclosed star-delta starter series.
  • 15 kW rated motor power.
  • 240 V AC control circuit.
  • Integrated isolator switch.
  • Reduced-voltage star-delta motor starting.
  • IP55 metal clad enclosure.
  • Compatible with Chint NR2 thermal overload relay.
  • Surface mounting design for industrial installations.

Reduced Current Motor Starting for Industrial Systems

Star-delta starters such as the Chint SQ4-15P/IS-SD-240V reduce motor starting current by initially connecting motor windings in a star configuration before automatically switching to delta operation. This helps reduce voltage dips, minimise mechanical stress and improve the reliability of industrial motor systems.

The SQ4 series is designed for industrial applications requiring dependable motor startup performance and durable enclosure protection. Its metal clad IP55 enclosure supports long-term operation in demanding environments while the integrated isolator improves maintenance safety.

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.

Technical Specifications

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IP Rating IP55
Power 15 kW
Voltage 400 V
Starter Type Star Delta
With Isolator Yes
Coil / Supply Voltage 240 V AC
Manufacturer Chint
Series SQ4 Motor Starters
Model SQ4-15P/IS-SD-240V
Product type Star-delta starter
Motor rating 15 kW
Motor full load current 28 A
Delta loop current 16.2 A
Recommended overload relay NR2-25-18
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

Frequently Asked Questions

What is the Chint SQ4-15P/IS-SD-240V used for?

This product is used for reduced-current starting of three-phase industrial motors in machinery and automation systems.

What motor size is supported by this starter?

The starter is designed for motors rated up to approximately 15 kW.

What is the benefit of a star-delta starter?

A star-delta starter reduces motor starting current and mechanical stress during startup, helping improve motor performance and minimise power supply disturbances.

Is the enclosure suitable for industrial environments?

Yes, the unit features a durable IP55 metal clad enclosure suitable for demanding industrial environments.

Does the starter include overload protection?

The starter is designed for use with a compatible NR2-25-18 thermal overload relay.

Trusted by Industrial Engineers Worldwide

Chint SQ4 star-delta starters are widely used in industrial motor control applications to provide reliable reduced-voltage starting, robust protection and efficient operation of three-phase motors.

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