Nominal Controls Releases Mach-1 DC Solid State Contactors

May 7, 2021

Nominal Controls Inc., a Canadian manufacturer of pressure sensing and power control technologies, has recently released their new Mach-1 DC Contactors. This release extends the company’s DC solid state switching capability to the 100 to 400 ADC range.

Mach-1 DC contactors incorporate the latest semiconductor technology in an industry-standard panel mount solid state relay package. They can handle high current, high voltage, and high frequency applications operating at up to 400A nominal (1200A inrush), 1500 VDC, and 10 kHz. “The development of this innovation is made possible through collaborations with the Accelerator Centre and Communitech” says Peter Zhang, manager and product officer. “We look forward to helping customers build the next state-of-the-art systems.”

Mach-1 DC solid state contactors enable new feasibility with:

  •    –   Retrofitting higher voltage electro-mechanical contactors
  •    –   Interrupting current in <20μs for down-line protection
  •    –   Fine-tuning DC power with PWM up to 10kHz
  •    –   Supporting direct CMOS/TTL inputs from computers, Arduino and Raspberry Pi devices


Features and benefits of Mach-1™ DC solid state contactors include:

  •    –   No moving parts; arc-free and noise-free
  •    –   MTBF >3million hours, or 50-300 million cycles
  •    –   DC controlled with diagnostic LED indicator
  •    –   Optional NC/NO auxiliary output for advanced models
  •    –   Patent pending high-reliability construction
  •    –   Made in Canada. Semiconductors from the USA


Sample Applications:

  •    –   General industrial process controls
  •    –   DC motor starter & power control
  •    –   Electric vehicle systems
  •    –   Renewable energy systems
  •    –   Battery charge/discharge applications
  •    –   BMS protection
  •    –   DC welding


Go HERE for more information

Related Articles



Editor’s Pick: Featured Article

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s scalable engineering software, u-control 2000, adapts individually to your requirements. And, the u-control is powerful, compact and fully compatible with Weidmüller’s I/O system u-remote. This article looks at what makes u-control the heart of your automation.

Programmable logic controllers (PLCs) are one of the main components of any automated system. A typical control system has inputs, outputs, controllers (i.e., PLCs), and some type of human interaction with the system, a human machine interface (HMI), for example.

Read More



Latest Articles

  • Applications of Physical AI in Canadian Sectors

    June 23, 2026 Physical AI — the convergence of artificial intelligence with robotics and autonomous motion systems — is reshaping how Canadian industries operate. Across sectors from healthcare to mining, AI-enabled machines are performing tasks that were once entirely dependent on human intervention. But deploying Physical AI effectively requires more than sophisticated algorithms: it demands… Read More…

  • Case Study: Optimizing Harmonic Mitigation in Wastewater Treatment

    June 22, 2026 Segment and Application In a municipality, wastewater treatment plants typically stand out as the main consumers of electricity. The operational processes exhibit significant load variations throughout a 24-hour cycle, necessitating the use of AC drives to regulate pumps, blowers, and other motorized equipment in response to fluctuating demand. In one wastewater treatment… Read More…