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3 Phase Solid State Relays

When there is a need for electronically switching off circuits with pre-determined conditions like a timer circuit, electronic relays such as 3 Phase solid state relays are used. More recently, electronic relays are found in various applications and household appliances such as professional cooking equipment, packaging machines, lighting systems, laboratory and medical equipment, HVAC system, and many others. In addition, electronic relays are typically used for industrial on/off control heating applications.

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Fastron Electronics specialises in stocking, supplying and distributing a range of electronic components in Australia, including electronic relays such as the 3 phase solid state relays. They offer a compact 3 in 1 solid state relay for switching 3 phase loads up to 533V, 70 Amp AC per phase. IP20 Covers provide added protection, and external varistors are supplied loose for overvoltage protection.

Electronic Relays Online

Sourcing globally for local clients, Fastron Electronics has built and sustained a reputation as the go-to place to buy electronic relays online at competitively low prices. We also have our own in-house designed and manufactured 3 phase solid state electronic relays. The following are amongst the featured 3 phase solid state electronic relays in stock, ready to be ordered through our online platform.

  • FTH2553ZA4, Solid State Relay, 3 Phase 90-280VAC Control, 25A, 70-530VAC Load
  • FTH12053ZD3-P, Solid State Relay, 3 Phase 4-32VDC Control, 120A, 70-530VAC Load w/ Varistors
  • FTH12053ZD3, Solid State Relay, 3 Phase 4-32VDC Control, 120A, 70-530VAC Load

 

Catering to major clients in the military, aviation, EV markets, and B2B businesses, Fastron Electronics is a name you can rely on as your local electronic component supplier. We strive to fulfil the demands of Australians by sourcing globally reputed brands at cost-effective prices. We also have our own brand of components and have excellent capability to design, manufacture customised solutions. Our product list is endless, and we offer design, manufacturing and complete solutions packages as well.

Explore the full range of electronic relays, including the 3 phase solid state relays on this page and enjoy free shipping on all orders over $300. In addition, you can benefit from bulk order discounts and also source complete BOM supplies from our online store. For special projects or technical support, contact our Melbourne-based team today. Please contact us below to make a special request for any items not shown. Through our wide network of sales channels built over 40 years, we’ll be able to source it for you, without a doubt.

We offer a range of services and solutions to suit you and are located at 9B Lakewood Bvd, Braeside Melbourne, VIC, 3195, Australia.


FAQ's


1. What is an electronic relay and how does it work?
An electronic relay is a switching device that controls circuits using electronic signals instead of mechanical movement. It is used to turn on or off a circuit under specific conditions, such as time or voltage, and is commonly found in HVAC systems, lighting, industrial equipment, and automated systems.
2. Where can I buy a reliable electronic relay in Australia?
You can buy high-quality electronic relays in Australia from Fastron Electronics. We offer a wide range of electronic relay switches, including 3 phase solid state relays, through our online store at competitive prices, with fast shipping and expert support.
3. What is the difference between an electronic relay and a mechanical relay?
An electronic relay uses semiconductor switching, making it faster and more durable than a mechanical relay, which relies on moving parts. Electronic relays are quieter, have a longer lifespan, and are more reliable in high-speed or high-cycle applications.
4. How does a 3-phase solid state relay control three-phase AC systems?
A 3-phase solid state relay electronically switches all three phases simultaneously without moving parts. It enables precise and silent control of three-phase AC systems, ideal for heating elements, motors, and other industrial loads requiring consistent switching.
5. What are the advantages of using a solid state relay over traditional relays?
Solid state relays offer faster response, no mechanical wear, silent operation, and greater reliability compared to traditional relays. They’re ideal for high-frequency switching and harsh industrial environments where long-lasting, maintenance-free performance is critical.
6. Can I use an electronic relay switch for controlling high-voltage equipment?
Yes, many electronic relay switches, including our 3-phase solid state relays, are designed to handle high-voltage equipment. Some models in our range support loads up to 530VAC per phase, making them suitable for industrial and commercial use.
7. How does an electronic relay switch differ from a mechanical relay switch?
An electronic relay switch uses solid-state components to control circuits, while a mechanical relay uses physical contacts. Electronic relays provide faster, quieter, and more durable operation with less maintenance, especially in demanding or repetitive applications.
8. What are the main applications of electronic relays in industrial settings?
Electronic relays are used in HVAC systems, industrial heating, packaging machinery, lighting control, and motor switching. Their silent operation and fast switching make them ideal for automated industrial environments and power control systems.
9. Can a 3-phase solid state relay be used for controlling motors and HVAC systems?
Yes, a 3-phase solid state relay is ideal for controlling motors and HVAC systems, providing smooth and reliable switching without contact wear. These relays are especially useful in environments that require consistent on/off control.
10. What voltage and current ratings are available for your electronic relays?
Our electronic relays, including 3-phase solid state relays, are available in various voltage and current ratings—some supporting up to 530VAC and 120A per phase. This allows flexibility for both light-duty and heavy-duty applications.
11. How do I install an electronic relay or relay switch in my electrical circuit?
Electronic relays are typically DIN rail or panel-mounted and wired into the control and load sides of the circuit. For safety and compliance, installation should be done by a qualified professional following relevant electrical standards.
12. Are electronic relays suitable for low-power applications?
Yes, electronic relays can be used in both low-power and high-power applications. Their fast switching and compact design make them suitable for a wide range of uses, including laboratory and medical equipment.
13. What are the benefits of using a 3-phase solid state relay in power distribution systems?
A 3-phase solid state relay ensures reliable and synchronised switching of all three phases, reducing electrical noise and wear. It’s ideal for power distribution systems where consistent, maintenance-free performance is critical.
14. Can I use electronic relay switches for automation in manufacturing?
Absolutely. Electronic relay switches are well-suited for automation in manufacturing due to their fast switching, reliability, and durability. They are commonly used in process control, packaging, and industrial equipment automation.
15. Do your electronic relays and solid state relays comply with Australian electrical standards?
Yes, our electronic relays and solid state relays meet relevant global and Australian electrical standards. We ensure all products sourced and supplied through Fastron Electronics are reliable, tested, and safe for use in Australian environments.
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