Chint SQ4-22P/IS-SD-415V enclosed metal clad star-delta starter with integrated isolator designed for industrial three-phase motor starting applications with IP55 protection and 415 V AC control voltage.
£1,161.07
The Chint SQ4-22P/IS-SD-415V is a heavy-duty metal clad star-delta starter with integrated isolator 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 while improving operational safety and extending motor service life.
Part of the dependable Chint SQ4 motor starter series, this model combines reliable motor control functionality with integrated local isolation for safer maintenance and servicing procedures. The rugged IP55-rated enclosure protects internal components against dust and moisture ingress, making the unit suitable for factories, workshops, process plants and industrial automation systems.
With a motor rating of 22 kW and a 415 V AC control circuit, the SQ4-22P/IS-SD-415V is ideal for pumps, compressors, conveyors, ventilation systems and industrial machinery requiring smooth reduced-voltage motor starting and reliable long-term operation.
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 the reliability of industrial motor systems.
The integrated isolator on the SQ4-22P/IS-SD-415V provides secure local isolation during maintenance and servicing procedures, improving operational safety. Its IP55-rated enclosure helps ensure dependable operation in demanding industrial environments where protection against dust and moisture is essential.
| Power | 22 kW |
|---|---|
| Voltage | 415 V |
| Phase | Three Phase |
| IP Rating | IP55 |
| Series | SQ4 Motor Starters |
| Product type | Star-delta starter with isolator |
| Motor rating | 22 kW |
| Control voltage | 415 V AC |
| Control frequency | 50 / 60 Hz |
| Starter type | Reduced-voltage star-delta starter |
| Enclosure type | Metal clad steel enclosure |
| Protection rating | IP55 |
| Integrated isolator | Yes |
| Mounting type | Surface mounting |
| Motor supply | Three-phase AC motors |
| Application | Industrial motor starting and protection |
| Overload protection | Thermal overload relay compatible |
This product is used for reduced-current starting of three-phase industrial motors in machinery and automation systems.
The starter is designed for motors rated up to approximately 22 kW.
The built-in isolator allows safe electrical disconnection during maintenance and servicing procedures, improving operator safety.
Yes, the unit features a durable IP55 metal clad enclosure suitable for demanding industrial applications.
Star-delta starters reduce motor starting current and mechanical stress during startup, helping improve motor longevity and minimise supply disturbances.
Chint SQ4 star-delta starters with integrated isolators are widely used across industrial motor control systems where reliable reduced-current starting, safe maintenance isolation and durable enclosure protection are essential.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...