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DIN-A-MITE® A Power Controller

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The DIN-A-MITE® A power controller is designed and manufactured with quality features expected from Watlow. DIN-A-MITE A capabilities include single-phase zero-cross switching up to 25 amperes at 600VAC (see rating curve). A unique integrated design removes the guesswork associated with selecting a proper heat sink and adequate terminations for the application. DIN-rail and back panel mounting is standard on this family of controllers. The DIN-A-MITE is also mercury free.

Variable time base, 4-20mA process control or VAC/VDC input contactor versions are available. All options are model number dependent and factory configurable. This power controller includes 200KA short circuit current rating (SCCR) tested up to 480VAC to prevent arch flash with required fusing.

Specifications · Features and Benefits


  • Height: 3.7 in. (95 mm) high x 1.8 in. (45 mm) wide x 3.9 in. (98 mm) deep
  • Weight: 0.71 lb (0.32kg)
Operator Interface
  • Command signal input
  • Input indicator light LED
  • Single phase, see the output rating curve
  • Max. I2t for fusing: 4000A2sec
  • Latching current: 200mA
  • Holding current: 100mA
  • Power dissipation is 1.2 watts per ampere switched
  • 200KA SCCR, Type 1 and 2 approved with the recommended fusing; see user manual
Line Voltage
  • 20 to 660VAC model number dependent
  • Off-state leakage: 1mA at 77ºF (25ºC) max.
  • 50/60Hz independent
Control Mode-Zero Cross
  • Input control signal Type C: VDC input contactor
  • Input control signal Type K: VAC input contactor
  • To increase service life on contactor input models, the cycle time should be less than three seconds
  • Input control signal Type F: 4 to 20mA DC proportional variable time base control; 3 cycles on, 3 cycles off at 50% power
Input Command Signal
  • AC contactor
    24VAC ±10%, 120VAC +10/-25%, 240VAC +10/-25% @ 25mA max. per controlled leg
  • DC Contactor
    4.5 to 32VDC: max. current @ 4.5 VDC is 8mA
  • Loop powered linear current 4 to 20mA DC: loop-powered, input Type F0 option only (requires current source with 6.2VDC available, no more than 3 DIN-A-MITE inputs can be connected in series)
Agency Approvals
  • CE with proper filter:
    204/108/EC electromagnetic compatibility directive
      EN 61326-1: industrial immunity Class A emissions
    2006/95/EC low voltage directive
      EN 50178 safety requirements
    Installation category III, pollution degree 2
  • cULus® UL® 508 listed and C-UL® File E73741
Input Terminals
  • Compression: will accept 24 to 16 AWG (0.2 to 1.5 mm2 ) wire
Line and Load Terminals
  • Compression: will accept 18 to 8 AWG (0.8 to 8.4 mm2) wire
Operating Environment
  • Up to 176ºF (80ºC); see the output rating curve chart for specific applications
  • 0 to 90% RH (relative humidity), non-condensing
  • Installation only tested to 3,000 meters
  • Units are suitable for "Pollution degree 2"

Options include DIN-rail or standard back panel mounting
  • The DIN-rail specification is: DIN EN 50022, 1.3 in. (35 mm) by 0.3 in. 7.5 mm
  • Mount the cooling fins vertically
Specifications are subject to change without notice.

Features and Benefits

200KA SCCR with proper fusing

  • Minimizes damage in the event of a short circuit

    DIN-rail or standard panel mount

  • Provides versatility, quickness and low-cost installation

    Compact size

  • Reduces panel space and cost

    Touch-safe terminals

  • Increases safety for installer/user

    Mercury free

  • Environmentally safe

    Faster switching with solid state

  • Saves energy and extends heater life

    UL® 508 listed, C-UL® and CE with filter

  • Meets applications requiring agency approval

    Back-to-back SCR design

  • Ensures a rugged design


    · Output Rating Curve


    DFJ Fuses

    DFJ Fuses

    DFJ Single Fuse Holder

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