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E-Shop : Power Controls : SCR Voltage Controls

SCR's: Precise proportional control of resistance heating loads. SCR's provide reliable voltage control solutions for a wide varitity of heating applications.

Constant resistance heating loads can be controlled to tighter tolerance
High inrush heating loads can be brought on line slowly with a "soft start" or ramp up to voltage.

Payne offers features that make SCR's reliable for today's manufacturing enviroment.

  • Large Specially engineered Heat sinks allow higher temperature tolerance.
  • Surge Protection: "Vbo Clamping" protects semiconductors against transient voltages regardless of PIV ratings and without MOVs.
  • Short Circuit Protection: factory-tested sub-cycle, "2 millisecond" current-limiting fuses protect the power semiconductors against short circuit damage.
      • Advantages:
    • Millions of Cycles
    • No electromechanical Noise
    • No moving parts
    • Quite
    • protection from chemicals and dust.
    • High resistance to shock and vibration.
    • No Arcing Contacts
      Dis-advantages:
    • Contact voltage drop "1 to 1.6 volts"
    • Heat sensitive 50° C
    • Heat producing
    • Tolerance to voltage spikes.
    For pricing Select Application.
    Model
    Number     		Style Phase Load Applications
    18D Phase Angle Control 1 Phase Line to Line Constant Resistance Loads
    18E Phase Angle Control 3 Phase Balanced or
    Delta Connected Loads     		Constant Resistance Loads
    18DZ Zero Fired Control 1 Phase Line to Line Constant Resistance Loads
    18EZ Zero Fired Control 3 Phase Balanced or
    Delta Connected Loads     		Constant Resistance Loads
    Whats the Difference Between Phase Angle and Zero Fired?

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