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Help CenterIndustrial Earthing Switch: 24kV Motorized Operation With ASTA Test Report
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Jinhua Dika Electrical Equipment Co., Ltd. is a professional manufacturer specializing in high-voltage switchgear components. With an annual export value of US$1 million to US$1.5 million and a dedicated team of 11-50 employees, we bring over a decade of expertise to the global power industry. Our Industrial Earthing Switch: 24kV Motorized Operation with ASTA Test Report represents a reliable, safe, and high-performance solution for earthing applications in medium-voltage networks. This product is designed for automated substations, industrial plants, and utility systems where rapid and remote earthing is essential. Backed by rigorous testing, our earthing switch ensures operator safety and equipment protection under fault conditions.
The motorized mechanism enables remote control and integration with SCADA systems, significantly reducing manual intervention and enhancing operational efficiency. The switch is fully compliant with international standards and has successfully passed ASTA certification tests, demonstrating its ability to handle short-circuit currents and maintain reliable performance. Below are the detailed technical specifications and key features.
Key Features & Technical Specifications
- Rated Voltage: 24 kV — Suitable for medium-voltage distribution networks up to 24 kV systems (IEC 62271-102).
- Motorized Operation — AC/DC motor drive with manual override for emergency use; low power consumption, easy integration.
- ASTA Test Report — Certified for rated short-circuit making and breaking capacity; full test documentation available.
- Robust Construction — Main contacts made of high-conductivity copper alloy; arc-resistant housing optional.
- Flexible Mounting — Can be installed horizontally, vertically, or in any orientation; indoor and outdoor enclosures available.
- Interlocking Mechanism — Prevents accidental closure when circuit breaker is live; mechanical and electrical interlocks.
- Low Maintenance — Sealed bearings, self-lubricating bushings, and corrosion-resistant finish for long service life.
- Remote Indication — Auxiliary contacts provide open/closed status signals for monitoring and control.
| Parameter | Value |
|---|---|
| Rated Voltage (kV) | 24 |
| Power Frequency Withstand (kV) | 50 |
| Lightning Impulse Withstand (kV) | 125 |
| Rated Short-Circuit Making (kA peak) | 100 (ASTA tested) |
| Rated Short-Circuit Duration (s) | 3 |
| Motor Voltage | AC 110V / 220V / DC 110V / 220V (customizable) |
| Motor Power (W) | 150–300 |
| Operating Time (s) | ≤ 5 |
| Mechanical Endurance (operations) | ≥ 10,000 |
| Protection Grade (enclosure) | IP54 (standard), IP65 (optional) |
Advantages for Your Business
By choosing our motorized earthing switch, you gain:
- Enhanced Safety: Remote operation keeps personnel away from live parts; visible earthing indication.
- ASTA Certified Reliability: Independent verification of short-circuit capability ensures peace of mind.
- Reduced Downtime: Fast motorized closing (≤5 seconds) speeds up maintenance procedures.
- Design Flexibility: Multiple voltage/motor options allow seamless integration into existing switchgear.
- Long Service Life: High-quality materials and corrosion protection lower total cost of ownership.
Trust & Quality Assurance
Jinhua Dika Electrical Equipment Co., Ltd. is located in Jinhua, Zhejiang, China. As a manufacturer with over 10 years of export experience, we serve markets across North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. Our factory is certified under ISO9001, ISO14001, OHSAS18001 and other quality management systems, ensuring consistent product quality. Every batch of earthing switches undergoes factory acceptance tests, and the ASTA test report is provided upon shipment. We ship from major Chinese ports: Shanghai, Tianjin, Guangzhou, and Ningbo. With an annual export value exceeding US$1 million and a dedicated after-sales team, we are committed to delivering reliable products and responsive support. Contact us today for a quote or technical consultation — your reliable partner in medium-voltage earthing solutions.
Frequently Asked Questions (FAQ)
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Q: What is an industrial earthing switch and why is it needed?
A: An earthing switch is a safety device that connects a circuit or equipment to ground when it is de-energized, ensuring that any residual charge or accidental re-energization is safely diverted. It is essential for maintenance and fault isolation in medium-voltage systems. -
Q: Can this motorized earthing switch be operated manually in case of power loss?
A: Yes, the switch is equipped with a manual override mechanism that allows hand operation when the motor drive is unavailable. This ensures continued functionality during emergencies. -
Q: What does ASTA test report guarantee?
A: The ASTA (formerly Association of Short Circuit Testing Authorities) test report verifies that the earthing switch can safely make and break short-circuit currents up to the rated values, confirming its performance under fault conditions. -
Q: Is the product suitable for outdoor installation?
A: Yes, we offer weatherproof enclosures with IP65 protection for outdoor use. The standard indoor model is IP54. Please specify your installation environment when ordering. -
Q: What are the available motor voltages for the motorized operation?
A: We provide standard options of AC 110V/220V and DC 110V/220V. Other voltages can be customized upon request. -
Q: How long is the delivery time and what ports do you ship from?
A: Typical delivery time is 15–30 days after order confirmation, depending on quantity. We ship from Shanghai, Tianjin, Guangzhou, or Ningbo ports, and door-to-door service can be arranged. -
Q: Do you offer customized accessories like auxiliary contacts or interlocking?
A: Absolutely. We can integrate additional auxiliary switches for remote status monitoring, mechanical interlocks with circuit breakers, and other custom features based on your system requirements. -
Q: What after-sales support do you provide?
A: We offer a 12-month warranty and provide technical documentation, installation videos, and online support. Our team responds to inquiries within 24 hours.
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