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

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.

Common Applications

A selection of frequently deployed solutions in industry:

Furnace Controllers Primary / Secondary Transformer Control DC Motor Control (Single & Bi-Directional) Field Controllers Controlled HV DC Supplies Controlled LV Supplies (Low Ripple) Induction Heaters (High Frequency) Soft Starters Slipring Motor Starters Battery Chargers Flying Saw / Shear Croppers Tube Mill Control
Industry Applications

Powering Demanding Industrial Environments

From steel and minerals to ceramics and general manufacturing, PHASECON controllers deliver reliable performance where uptime matters.

🛡️
2-Year Warranty
Full manufacturer warranty on all controllers
🏅
CE Certified
Meets international quality standards
🚚
Fast Dispatch
Stock items shipped within 48 hours
🎧
Expert Support
Free technical consultation
Why Choose Us

Why Industry Leaders Choose PHASECON

Over 44 years of engineering excellence in thyristor technology. Our products power South Africa’s leading steel mills, mining operations, and manufacturing facilities.

Quality Engineering

Industrial-grade K6550 thyristor controllers built to exacting standards. Single and three-phase designs from 20A to 2000A with CE certification.

Proven Reliability

Trusted by South Africa’s leading steel mills, mining operations, and manufacturing companies since 1980. Over 10,000 units installed.

Expert Technical Support

Dedicated technical team ready to assist with product selection, installation guidance, and troubleshooting. Free consultation on every enquiry.

Custom Solutions

Bespoke thyristor systems supplied as chassis-mount units, panel-mounted assemblies, or complete turnkey solutions to your specifications.

Our Products

Industrial Thyristor Products

Complete range of K6550 thyristor controllers, DC drives, rectifiers, and power supplies. All products manufactured in South Africa with local technical support and 2-year warranty.

Best Seller
K6550 Furnace Controllers

K6550 Furnace Controllers

Buy industrial thyristor controllers for furnace temperature control. 20A–2000A, 400V–525V. Ideal for heat treatment, ceramic processing, and induction furnaces.

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Industrial Rectifiers

Industrial Rectifiers

High-current rectifiers for electroplating, anodizing, and cathodic protection. Air-cooled, oil-cooled, and IGBT options up to 2500A available.

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Popular
K6550 DC Drives

K6550 DC Drives

Purchase reliable DC motor drives for speed control applications. 11kW–440kW ratings. Perfect for conveyors, winders, rolling mills, and crane systems.

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Trusted by South Africa’s Industry Leaders

From JSE-listed mining giants to family-owned foundries, PHASECON controllers power critical processes across every sector.

44+
Years in Business
500+
Industrial Clients
10,000+
Controllers Installed
98%
Customer Satisfaction
TRUSTED BY INDUSTRY LEADERS
Customer Success Stories

What Our Clients Say

“The technical support from PHASECON is outstanding. When we needed to upgrade our electroplating rectifiers, their team designed a complete solution that increased our capacity by 40%.”

Sarah Nkosi
Engineering Director, Precision Plating Works
Metal Finishing

“We’ve been using PHASECON thyristor controllers in our heat treatment facility for over 15 years. The reliability is exceptional—we’ve had zero unplanned downtime on our furnace lines.”

Johan van der Merwe
Plant Manager, Gauteng Steel Processors
Steel Industry

“As a contractor, I’ve installed PHASECON equipment across the country. Their products are well-engineered, easy to commission, and clients never have issues. That’s why they’re my first choice.”

Pieter Botha
Senior Engineer, Industrial Electrical Solutions
Contracting

“The K6550 DC drives have been running our mine winders for 8 years without a single failure. In mining, downtime costs millions—PHASECON equipment gives us peace of mind.”

David Mokoena
Maintenance Superintendent, Northern Platinum Mining
Mining
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