# Phasecon > For Thyristor Controller --- ## Pages - [Home](https://www.phasecon.co.za/): Est. 1980 Made in South Africa 🇿🇦 Buy Industrial Thyristor Controllers K6550 Series controllers from 20A to 2000A. Trusted by... - [Products](https://www.phasecon.co.za/products/): ✓ Local Stock ✓ 2-Year Warranty ✓ Technical Support Buy Industrial Thyristor Controllers & DC Drives PHASECON manufactures the K6550... - [About](https://www.phasecon.co.za/about/): Est. 1980 • Made in South Africa ZA About Phasecon South Africa’s trusted manufacturer of thyristor controllers and industrial power... - [Contractors](https://www.phasecon.co.za/contractors/): Nationwide Coverage PHASECON Agents & Contractors Our network of experienced technical agents across South Africa ensures you receive expert support... - [Coming soon](https://www.phasecon.co.za/auto-draft/): We are currently working on updating our site. Please check back soon to see our new site. In the meantime,... - [Gallery](https://www.phasecon.co.za/gallery/): Standard Products Rectifiers Panels Heat Controllers Power Supplies Custom Projects - [R8600 - Regenerative Control Card](https://www.phasecon.co.za/products/r8600-regenerative-control-card/): The R8600 is used in all PHASECON single phase regenerative controllers. Ideal for replacement of existing or obsolete control electronics.... - [P6550 - Programmable Multi-Function Thyristor Control Card](https://www.phasecon.co.za/products/p6550-programmable-multi-function-thyristor-control-card/): Cost saving through standardisation, the P6550 Control Card is used for 3-Phase AC and DC controllers. Ideal for placement of... - [P4500 - Programmable Multi-Function Thyristor Control Card](https://www.phasecon.co.za/products/p4500-programmable-multi-function-thyristor-control-card/): The P4500 Control Card is used in single phase thyristor control applications. Ideal for replacement of existing obsolete thyristor control... - [About Us](https://www.phasecon.co.za/about-us/): We would like to introduce ourselves to your company with our manufacturing program. We manufacture single phase and three phase... - [R12500 - Regenerative Control Card](https://www.phasecon.co.za/products/p4500-programmable-multifunction-thyristor-control-card/): The R12500 is used in all PHASECON 3 phase regenerative DC Controllers. Ideal for replacement of all magnetic amplifier and... - [SF6000 - AC Motor Soft Starter Control Card](https://www.phasecon.co.za/products/sf6000-ac-motor-soft-starter-control-card/): The SF6000 control card can be used to start these three phase squirrel cage AC induction motors or slipring motors.... - [Contact Us](https://www.phasecon.co.za/contact-us/): Call us on (011) 462-2100 for all your Thyristor needs. --- ## Posts - [DC Drive](https://www.phasecon.co.za/dc-drive/) - [R12500 - Regenerative Control Card](https://www.phasecon.co.za/r12500-regenerative-control-card/) - [e-Home](https://www.phasecon.co.za/e-home/): Welcome to the new e-home of Phasecon (PTY) LTD - [P6550 - Programmable Multifunctional Thyristor Control Card](https://www.phasecon.co.za/p6550-programmable-multifunctional-thyristor-control-card/) - [P4500 - Programmable Multifunctional Thyristor Control Card](https://www.phasecon.co.za/p4500-programmable-multifunctional-thyristor-control-card/) - [SF6000 - AC Motor Soft Starter Control Card](https://www.phasecon.co.za/sf6000-ac-motor-soft-starter-control-card/) - [P8600 - Regenerative Control Card](https://www.phasecon.co.za/p6800-burst-firephase-control-thyristor-control-card/) - [About Us](https://www.phasecon.co.za/about/): PHASECON (Pty) Ltd has been operating in the industrial electronic industry since 1980 and has established a reputation for quality... --- # # Detailed Content ## Pages Est. 1980 Made in South Africa Buy Industrial Thyristor Controllers K6550 Series controllers from 20A to 2000A. Trusted by ArcelorMittal, Anglo American, and 500+ industrial facilities. Get competitive pricing, 2-year warranty, and same-week dispatch for stock items. 2-Year Warranty Local Stock Technical Support Custom Solutions Browse Products → ▶ Request Quote 20A–2000A Full current range for any application 44+ Years manufacturing in South Africa 500+ Industrial facilities served CE Certified quality standards PHASECON (Pty) Ltd — Industrial Thyristor Control Since 1980 PHASECON has been operating in the industrial electronic industry since 1980 and has established a reputation for quality and reliability. Through our network of experienced agents in South Africa, we provide technical advice and practical suggestions to improve quality and productivity across production machinery. Industrial Thyristor Expertise We manufacture single and three-phase thyristor trigger control cards, complete thyristor controlled stacks, and complete systems for demanding industrial environments. Local Technical Support PHASECON employs a dedicated team including experienced technical support personnel to assist with selection, integration and troubleshooting. Trusted Across Key Sectors We have strong relationships with South Africa’s leading steel and mineral companies, and meaningful impact in ceramics and heat treatment through major furnace builders. 44+ Years in Business 15 Staff Members 3 Technical Support Personnel Systems can be supplied in chassis mount format or in boxes/panels as per your requirement. Request Technical Advice View Products What We Manufacture Single & three-phase thyristor trigger control cards Complete thyristor controlled stacks Complete industrial power control systems Explore: K6550 Furnace Controllers,... --- Local Stock 2-Year Warranty Technical Support Buy Industrial Thyristor Controllers & DC Drives PHASECON manufactures the K6550 Series—South Africa's most trusted thyristor controllers and DC drives. Available from 20A to 2000A at 400–525V. All products manufactured locally, CE certified, and backed by expert technical support. Request a quote today. Thyristor & Furnace Controllers DC Drives Industrial Rectifiers Power Supplies & Chargers Electrical Panels Phasecon Cards Accessories Profilers Modules Thyristor & Furnace Controllers Industrial-grade Thyristor & Furnace Controllers (K6550 Series) designed for precise and efficient power regulation. Available from 20A to 2000A for 400V–525V applications—ideal for resistive loads, induction furnaces, arc furnaces, and electric kilns. Features Single and three-phase thyristor control Precision temperature regulation Compatible with PLC & SCADA systems Overload protection included Panel or chassis mount options 20A to 2000A current ratings Applications Industrial Furnaces Heat Treatment Equipment Induction Furnaces Arc Furnaces Electric Kilns Ceramic Processing View Details → Request Quote Available Models K6550 AC 400 20A–100A 20A - 100A 400V-525V K6550 AC 400 150A–300A 150A - 300A 400V-525V DC Drives K6550 Series DC Drives for industrial motor control applications. Available from 20A to 1000A (11KW to 440KW) at 400V input, providing smooth speed regulation and reliable performance for demanding environments. Features Single and bi-directional motor control Field controller options Smooth speed regulation High efficiency operation Robust industrial construction 20A to 1000A current ratings Applications DC Motor Speed Control Winding Machines Conveyor Systems Industrial Machinery Crane & Hoist Systems Rolling Mills View Details → Request Quote Available Models K6550 DC... --- Est. 1980 • Made in South Africa ZA About Phasecon South Africa's trusted manufacturer of thyristor controllers and industrial power electronics. For over 44 years, we’ve delivered quality, reliability, and expert technical support to the steel, mining, and manufacturing sectors. Our Story Engineering Excellence Since 1980 PHASECON (Pty) Ltd has been a cornerstone of South Africa's industrial electronics sector since 1980. We design and manufacture single-phase and three-phase thyristor trigger control cards, complete thyristor-controlled power stacks, and integrated panel systems for furnace control, motor drives, rectifiers, and power supplies. Our K6550 Series has become the industry standard for thyristor control in South Africa, with over 10,000 units installed across the country's leading industrial facilities. From ArcelorMittal steel plants to Anglo American mining operations, PHASECON controllers power critical processes that demand absolute reliability. Our extensive network of experienced technical agents enables us to provide rapid support, upgrade existing machinery, and improve the quality, reliability, and productivity of your production processes. Whether you need a simple replacement controller or a complete control system retrofit, PHASECON delivers solutions that perform. With headquarters at Icon Industrial Park in Centurion, we continue to invest in manufacturing capability and technical expertise. Our team is committed to providing prompt technical support and building lasting partnerships with our clients. Browse Products → Contact Our Team Company Timeline '80 1980 Company founded in Johannesburg, pioneering thyristor control technology in South Africa '85 1985 Launched the first K6550 Series controller, establishing industry standard '95 1995 Expanded to serve mining sector... --- Nationwide Coverage PHASECON Agents & Contractors Our network of experienced technical agents across South Africa ensures you receive expert support wherever you're located. Sales, installation, and service— all backed by PHASECON quality. Services Provided by Our Agents All PHASECON agents are trained and authorized to provide comprehensive support for our full product range. Sales & Quotations Get competitive quotes on thyristor controllers, DC drives, and rectifiers. Expert product recommendations for your application. Technical Support Free technical consultation on product selection, system design, installation requirements, and troubleshooting. Installation & Commissioning Professional on-site installation and commissioning services by experienced engineers. Full testing and documentation. Repairs & Maintenance Fast turnaround on repairs, preventive maintenance programs, and system upgrades. Genuine PHASECON parts in stock. Find Your Local Agent Regional Agents & Representatives Contact your nearest PHASECON agent for sales, technical support, installation, and service enquiries. HEAD OFFICE Gauteng (Head Office) PHASECON (Pty) Ltd Coverage: Gauteng, Limpopo, Mpumalanga, North West Phone +27 11 462 2100 Fax: +27 11 462 2327 Email info@phasecon. co. za Address Unit 1, Icon Industrial Park, 473 Barolong Street, Sunderland Ridge, Centurion Call Now Cape Town & Western Cape Altronic Systems Coverage: Western Cape, Northern Cape Phone +27 83 261 0739 Fax: +27 21 981 4944 Address P. O. Box 934, Brackenfell, 7561 Call Now East London & Eastern Cape Electronic Power Manufacturing Coverage: Eastern Cape Phone +27 43 743 0212 Fax: +27 43 743 6587 Address 25 Brill Street, Arcadia, East London Call Now Port Elizabeth & Surrounds Solid State... ---     We are currently working on updating our site. Please check back soon to see our new site. In the meantime, if you need any assistance, please contact us on 011 462 2100 or info@phasecon. co. za. --- Standard Products Rectifiers Panels Heat Controllers Power Supplies Custom Projects --- The R8600 is used in all PHASECON single phase regenerative controllers. Ideal for replacement of existing or obsolete control electronics. Ideal for magnetic amplifier replacement and MG sets. --- Cost saving through standardisation, the P6550 Control Card is used for 3-Phase AC and DC controllers. Ideal for placement of obsolete thyristors control electronics and variacs. --- The P4500 Control Card is used in single phase thyristor control applications. Ideal for replacement of existing obsolete thyristor control electronics and variacs. --- We would like to introduce ourselves to your company with our manufacturing program. We manufacture single phase and three phase controllers for all kinds of applications. PHASECON (Pty) Ltd has been operating in the industrial electronic industry since 1980 and has established a reputation for quality and reliability. Through our network of experienced agents in South Africa we offer technical advice and suggestions to improve quality and productivity of production machinery. We manufacture SINGLE and THREE-PHASE thyristor trigger control cards, complete thyristor controlled stacks and complete systems. Listed below are a few applications that are the most commonly used: FURNACE CONTROLLERS PRIMARY/SECONDARY CONTROL OF TRANSFORMERS CONTROLLING OF DC MOTORS IN SINGLE AND BI-DIRECTIONAL CONTROL FIELD CONTROLLERS CONTROLLED HIGH VOLTAGE DC SUPPLIES CONTROLLED LOW VOLTAGE SUPPLIES (WITH LOW RIPPLE) INDUCTION HEATERS ( HIGH FREQUENCY) I. E. HARDENING/MELTING SOFT STARTERS SLIPRING MOTOR STARTERS BATTERY CHARGERS FLYING SAW/SHEAR CROPPERS CONTROLLING OF TUBE MILLS PHASECON employs a total number of 15 staff members including 3 experienced technical support personnel. With our expertise, we look forward to a meaningful relationship between our companies. Our company has good relationships with some of South Africa's leading steel and mineral companies. We have had an impact on the ceramic and heat treatment sector through our dealings with the major furnace builders. Systems can be supplied in chassis mount format or in boxes/panels as per your requirement. --- The R12500 is used in all PHASECON 3 phase regenerative DC Controllers. Ideal for replacement of all magnetic amplifier and MG sets. --- The SF6000 control card can be used to start these three phase squirrel cage AC induction motors or slipring motors. The motors are started on the reduced voltage principles using thyristors as the switching elements. The SF6000 is therefore essentially a thyristor trigger card with motor control and motor protection features incorporated in the electronics. The SF6000 features digital firing pulse generation on all six thyristors resulting in a balance firing on all three phases. The digital circuit is more reliable and accurate than analogue pulse generation methods. The control section is analogue circuit comprise essentially of an operational amplifier which control the current of the motor. Current control input is derived from the three AC current transformers whose signal is rectified on the card and transformed into a feedback signal to the OP AMP. The “GO” signal is generated by the acceleration / deceleration circuit. There is an output for connection of A by pass contactor. --- Call us on (011) 462-2100 for all your Thyristor needs. Get In Touch Contact Phasecon Need a quote for thyristor controllers, DC drives, or rectifiers? Our technical team provides free consultation and competitive pricing. Contact us today for fast, expert service. How Can We Help? Our experienced technical team provides expert advice and competitive quotes for all thyristor control requirements. We respond to all enquiries within 24 hours. Phone +27 11 462 2100 Fax: +27 11 462 3227 Email info@phasecon. co. za accounts@phasecon. co. za Location Unit 1, Icon Industrial Park 473 Barolong Street, Sunderland Ridge Ext 18 Centurion, Pretoria, Gauteng Business Hours Monday – Friday: 8:00 AM – 5:00 PM Closed weekends & public holidays We Can Help With: New thyristor controller quotations Replacement & spare parts Technical consultation Custom system design Installation support Repair & maintenance Request a Quote Fill out the form below and we’ll get back to you within 24 hours with a competitive quote. Full Name * Email Address * Phone Number Company Name Subject * Message * Send Message By sending this form you agree that we may contact you regarding your enquiry. PHASECON (Pty) Ltd Unit 1, Icon Industrial Park 473 Barolong Street, Sunderland Ridge Ext 18 Centurion, Gauteng Get Directions --- --- ## Posts - Categories: R12500 - Tags: Control Card, R12500, Regenerative P12500 - REGENERATIVE CONTROL CARD --- - Categories: News Welcome to the new e-home of Phasecon (PTY) LTD --- - Categories: News PHASECON (Pty) Ltd has been operating in the industrial electronic industry since 1980 and has established a reputation for quality and reliability. Through our network of experienced agents in South Africa we offer technical advice and suggestions to improve quality and productivity of production machinery. We manufacture SINGLE and THREE-PHASE thyristor trigger control cards, complete thyristor controlled stacks and complete systems. Listed below are a few applications that are the most commonly used: FURNACE CONTROLLERS PRIMARY/SECONDARY CONTROL OF TRANSFORMERS CONTROLLING OF DC MOTORS IN SINGLE AND BI-DIRECTIONAL CONTROL FIELD CONTROLLERS CONTROLLED HIGH VOLTAGE DC SUPPLIES CONTROLLED LOW VOLTAGE SUPPLIES (WITH LOW RIPPLE) INDUCTION HEATERS ( HIGH FREQUENCY) I. E. HARDENING/MELTING SOFT STARTERS SLIPRING MOTOR STARTERS BATTERY CHARGERS FLYING SAW/SHEAR CROPPERS CONTROLLING OF TUBE MILLS PHASECON employs a total number of 15 staff members including 3 experienced technical support personnel. With our expertise, we look forward to a meaningful relationship between our companies. Our company has good relationships with some of South Africa's leading steel and mineral companies. We have had an impact on the ceramic and heat treatment sector through our dealings with the major furnace builders. Systems can be supplied in chassis mount format or in boxes/panels as per your requirement. --- ---