Single Phase SCR Power Pak

MiniMax 1P
Single Phase SCR Power Pak
  • 120-600 VAC @ 30-75 Amp
  • Phase Angle Firing
  • Isolated Control Circuit Inputs:
       0-5mA, 0-20mA,
       0-50mA, 1-5mA,
       4-20mA, 10-50mA,
       0-5Vdc, 0-10Vdc
  • Flexible I/O Power Wiring
  • Optional Current Limit
  • Easy Customer Interface
  • Remote Shutdown
  • Soft Start
  • Line Voltage Compensation
  • Compact Size and Construction
  • dv/dt Transient Voltage Protection
  • MOV Protection
  • Third-party certifications: UL Listed, cULus

The MiniMax Series is specifically designed for the OEM market. The current limit, soft start option, flexible I/O power wiring, space saving footprint, I2t fusing with UL and cUL approvals make it an excellent candidate for your product.

The Chromalox Model MiniMax 1P utilizes Phase Angle firing to modulate power to an inductive or resistive load. Phase Angle control has the advantage of proportioning every cycle thereby providing very fine resolution of power. Fast responding loads in which the resistance changes as a function of temperature are excellent candidates for Phase Angle control. The MiniMax Soft Start feature assures that the load power is gradually increased from zero to the value set by the command signal in the event of a power interruption. In addition to the Soft Start feature, optional Current Limit is used to protect the load, fuses, SCR controller, and the total system from large surge currents that could occur at startup. Chromalox MiniMax offers separate and adjustable Zero, Gain, Manual Bias, and Current Limit potentiometers for ease of calibration. Screw type plug-in connectors for input signals, remote shutdown, and optional Remote Manual Bias are standard for easy customer interface.

  • Resistive Heaters
  • Electric Ovens
  • Furnaces
  • Kilns

Mechanical Features:

  • LED Indication of Firing
  • Customer Control Connections are made on a Plug-In Screw Type Terminal Block
  • Optional Remote Manual Adjust and Auto/Manual Switch
  • Heatsink Mounted Temperature Thermostat NC
  • Built-In Power Distribution

Electrical Features:

  • SCRs PIV 1500V Minimum (1400 Volts on 600 Volt model)
  • Isolated Semiconductor Power Blocks are used on all Current Ratings
  • Optional I2t Fusing

Safety Features

Personnel Safety:

  • Ground Potential Heat Sink
  • SCR to Heat Sink Isolation

Equipment/Process Safety:

  • Input to Output Isolation
  • dv/dt Transient Voltage Protection
  • I2t Fusing for SCR Protection
  • Remote Shutdown
  • MOV
  • Current Limit
  • Soft Start

For more features refer to catalog page PDF under the Technical Resources tab.

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