SI-MAX Series — High-Performance Power Distribution Systems by South Seas
The SI-MAX series represents South Seas Technology’s commitment to delivering high-performance power distribution solutions to the global market.
Characterized by high breaking capacity, excellent dynamic and thermal stability, compact structural design, and high protection rating, the SI-MAX line meets the needs of a wide range of users.
All SI-MAX switchboards are manufactured in full compliance with IEC 61439-1, ensuring reliable and safe operation in applications worldwide.
Reliable Structure and Durable Materials
The products have successfully passed the Class A severe corrosion test, with verified performance in thermal stability, fire resistance, and internal electrical protection.
Their enclosures feature a dust- and water-resistant design, achieving IP4X/IP54 protection levels under different ventilation configurations, while internal separation reaches Form 4b / IP2X standards.
Outstanding Electrical Performance
Under pollution degree 3, with a rated impulse withstand voltage of 6 kV and a rated insulation voltage of 690 V, the PSC assembly has successfully passed the clearance and creepage distance verification.
The main busbar and 4000 A incomer unit passed the 80 kA rms short-circuit withstand test (peak 176 kA), ensuring circuit continuity under extreme conditions.Outgoing units ranging from 16 A to 250 kW DOL also passed 80 kA rms short-circuit tests, demonstrating stable and reliable performance.
Thermal Performance and Heat Dissipation
At an ambient temperature of 35 / 40 °C (average / maximum), the PSC system exhibits excellent current-carrying capacity:
2050 A under natural ventilation (IP54)
2750 A under forced ventilation (IP4X)
Safety and Intelligent Protection
All exposed conductive parts, protective circuits, and electromagnetic compatibility performance have been verified.
The system has also undergone an additional internal arc fault test (80 kA rms), ensuring dual protection for personnel and equipment in critical environments.
SI-MAX — Built on Standards, Committed to Reliability
Certified by Ausgrid, the test results fully demonstrate SI-MAX’s advantages in safety, stability, and engineering adaptability, making it an ideal power distribution solution for mining, infrastructure, and industrial energy systems.