The Leading Electrical Brand in China
The Leading Electrical Brand in China
Isolator switches provide safe and reliable electrical disconnection for power distribution systems up to 38kV. Follow this guide for choosing the right isolator switch and getting the best pricing.
Founded in 1992, GRL is one of the leading brands in China’s low-voltage electrical market. Over the years, GRL has accumulated extensive R&D and manufacturing experience in solar systems, convergence boxes, fuses, fuse switches, DC fuse switches, isolators and busbar systems.
GRL has the ability to independently develop new products and provide OEM and ODM services to help clients gain a competitive advantage. Welcome to contact us.
Isolator switches physically open circuits to isolate equipment for servicing. Key benefits:
Applications include solar farms, data centers, HVAC systems, generators, and manufacturing facilities.
Common isolator switch types include:
Select the right isolator design and features for your specific application.
Consider key criteria when choosing an isolator switch:
Larger switches naturally cost more but allow greater capacities.
Isolator switch pricing depends on:
Expect to pay $50-$500 for a typical switch. Contact suppliers like GRL for quotes.
GRL offers free isolator switch samples to evaluate quality:
Samples let you trial switches risk-free before purchasing. Experienced manufacturers have in-house engineering, testing and fabrication capabilities to produce robust flexible busbar systems.
Over the years, GRL has learned from world-class advanced companies and has made great strides in research and development, production, quality control, and service. Today, GRL has the ability to provide quality products to customers around the world. If you have any questions, please contact us, our professional engineers and service team will provide you with full solutions.
With GRL isolator switches you receive:
Reliable global support throughout the product lifetime.
Isolator switches provide safe isolation and disconnection across a wide range of electrical system applications:
For solar PV arrays, isolator switches:
DC rated, load break isolators are ideal for code-compliant PV isolation.
In generator systems, isolators:
3-pole AC isolators safely disconnect gensets.
For large facilities, isolators:
Fusible switches also provide overload protection.
For large motor applications:
Non-load break isolators safely disconnect motors.
In HVAC and buildings:
Isolators improve safety and uptime of building equipment.
GRL manufactures isolator switches from 400A to 3200A up to 35kV for industries worldwide:
GRL’s isolator switches provide the safety, reliability, and performance your application demands. Contact GRL today to discuss your power distribution needs and request free samples.
Q: What are the different types of isolator switches?
A: Common types are load break/non-load break, fusible/non-fusible, and number of poles.
Q: How do I choose the correct isolator switch size?
A: Size it based on the voltage rating and current capacity required.
Q: What is a typical price range for isolator switches?
A: $50 to $500 typically, depending on ratings and specifications.
Q: Where can I find isolator switch manufacturers?
A: Large electrical equipment suppliers like GRL manufacture quality switches.
Q: What factors affect isolator switch pricing?
A: Voltage, current, poles required, enclosure type, certifications, and accessories.
Q: How much do high amperage isolator switches cost?
A: 1000A to 3000A switches typically range from $200 to $1000.
Q: Can I get an isolator switch suitable for outdoor use?
A: Yes, outdoor isolator switches have NEMA 3R or 4X enclosures.
Q: What are the electrical ratings to look for when selecting isolator switches?
A: Voltage rating, continuous current rating, overload current ability.
Q: Do isolator switch suppliers offer technical support?
A: Yes, companies like GRL provide guidance on selecting the right switch.
Q: What type of isolator switch do I need for a solar installation?
A: Look for DC rated, load break switches rated for the system voltage.
Q: How do I install and wire an isolator switch?
A: Follow manufacturer guidelines. Ensure proper capacity and connections.
Q: What are safety standards for isolator switches?
A: ANSI C37.90, IEC 60947-3, EN 60947, and others based on region.
Q: How can I get the best price on isolator switches?
A: Buying larger quantities can get discounts. Compare supplier pricing.
Q: What switch accessories typically ship with isolator switches?
A: Common accessories included are auxiliary contacts, covers, operating handles, and bases.
Q: How do I obtain free isolator switch samples?
A: Contact manufacturer like GRL to request free samples for evaluation.
Q: How long is the typical isolator switch delivery time?
A: Most in-stock models ship within 1-2 weeks. Allow 4-6 weeks for custom.
Q: What is the difference between an isolator and a disconnect switch?
A: Isolators are designed for infrequent switching of de-energized circuits. Disconnect switches can make and break load current.
Q: Can I get an isolator switch UL certified?
A: Yes, quality isolator switches should meet UL 98 standard for safety.
Q: What maintenance is required on isolator switches?
A: Follow manufacturer guidance. Inspecting connections and lubricating parts annually.
Q: How do I know if I need a fusible or non-fusible isolator switch?
A: Consider if overcurrent protection is already provided elsewhere in your system.
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