MiniMax™ SCR Controllers
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Support and spares available around the world.
Quick Install
Designed for faster installation to reduce your labor time.
MiniMax™ SCR Controllers
The MiniMax™ Series is specifically designed for the OEM market. The plug-in options, flexible I/O power wiring, space saving footprint, I2t fusing and universal approvals make it an excellent candidate for your product.
Chromalox’ exclusive DOT (Demand Oriented Transfer) firing switches the fewest number of cycles to provide the most precise zero crossover control. At 50% output the unit’s output alternates between one electrical cycle on and one cycle off. At 51% the output continues with one cycle on / one cycle off and gradually integrates one extra “on” cycle for the additional one percent. With the exception of phase angle firing, DOT firing is the most precise method of SCR control. DOT firing is preferred in many applications because phase angle firing creates unwanted RFI. DOT is excellent for applications where consistent heater/process temperature control is critical.
MiniMax™ 1 Single Phase SCR Power Pak
The Chromalox Model MiniMax™ 1 Single Phase Solid State SCR Power Controller is a highly versatile power pak with optional plug-in Shorted SCR Detection Boards. Firing modes can be switched between On/Off and proportional Zero Cross or DOT Firing power control at any time based on process needs.
MiniMax™ 2 Three Phase, 2 Leg SCR Power Pak Controller
The MiniMax™ 2 is a Solid State, highly versatile power pak with optional plug-in and Shorted SCR Detection Boards. Firing modes can be switched between On/Off and proportional Zero Cross or DOT Firing power control at any time based on process needs.
MiniMax™ 3 Three Phase, 3 Leg SCR Power Pak Controller
The Chromalox Model MiniMax™ 3 is a Solid State, highly versatile power pak with optional plug-in Shorted SCR Detection Boards. Firing modes can be switched between On/Off and proportional Zero Cross or DOT Firing power control at any time based on process needs.
MaxPac Viewer Configuration Software
The MaxPac Viewer Configuration Software allows users to program a variety of parameters and settings into their MaxPac I, II, III and MiniMax I, II, and III power controllers. Power management, alarm monitoring, firing mode, and cycle time adjustment are just a few of the settings available. The software also has a service platform for troubleshooting and maintenance on the spot.
(Note: New configuration software releases occur without notice. If you need to update your release, you must first uninstall your current version prior to installing the latest release. This may be done in Programs and Features located in the Windows Control Panel.)
Technical Resources
Controls Design Guide
MiniMax Installation Manual
MaxPac Viewer Manual
Controls SCR Selection Guide
MiniMax 1 Single Phase SCR Power Pak
MiniMax 2 Three Phase, 2 Leg SCR Power Pak Controller
MiniMax 3 Three Phase, 3 Leg SCR Power Pak Controller
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Every heating challenge is unique. Chromalox offers the industry’s most comprehensive offering of component heaters and controls. Our experienced engineers will work with you to provide a complete thermal solution for your unique application.
