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DIN-A-MITE D Power Controller

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The DIN-A-MITE D silicon controlled rectifier (SCR) power controller provides an inexpensive, versatile product for controlling heat in an efficient package. This controller is designed and manufactured with the quality features expected from Watlow. The back panel mounting matches the footprint of the industry standard mercury displacement relay. There is no need to worry about mercury, the DIN-A-MITE controller is mercury free.

The DIN-A-MITE Style D is capable of zero-cross switching up to 100 amperes single-phase, at 600VAC at 86ºF (30ºC), depending on the model selected. When combined the input of two or three controllers you can control three-phase. It is totally touch-safe and includes standard back panel mounting, on-board semiconductor fuses (accessible from the front) and a current transformer option for external load current monitoring. An optional "shorted SCR detector" feature is available on some models. This model is UL® 508 listed and C-UL® and CE certified. These agency approvals are ideal for those panel builders that require agency approvals on their panels and cabinets.

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

Features and Benefits · Specifications

Features and Benefits

200KA short circuit current rating (SCCR)

  • Prevents arc flash

    Standard panel mount

  • Provides same mount as industry standard 100A mercury displacement relay (MDR)

    Compact size

  • Reduces panel space and cost

    Touch-safe terminals

  • Increases safety for installer and 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

    On-board semiconductor fusing

  • Provides quick access with no extra mounting necessary

  • Specifications

    • Height: 7.25 in. (185 mm) high x 2.5 in. (65 mm) wide x 9.4 in. (240 mm) deep
    • Weight: 6.5 lb (2.95 kg)
    • See the output rating curve chart
    • Max. surge current for 16.6ms, 1,800A peak
    • Latching current: 500mA min.
    • Holding current: 200mA min.
    • Power dissipation is 1.4 watts per ampere switched including on-board fusing
    • 200KA SCCR, Type 1 and 2 approved with the recommended fusing; see user manual
    Line Voltage
    • 24 to 48VAC units: 20 min. to 53VAC max.
    • 100 to 240VAC units: 48 min. to 265VAC max.
    • 277 to 480VAC units: 85 min. to 528VAC max.
    • 277 to 600VAC units: 85 min. to 660VAC max.
    • 50/60Hz independent ±5%
    Control Mode, Zero Cross
    • Input control signal Type C: VDC input contactor
    • Input control signal Type K: VAC input contactor
    • To increase service life, the cycle time should be less than three seconds
    • Input control signal Type F: 4 to 20mA DC variable time base control
    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 @ 4.5VDC is 8mA per leg
    • Loop powered linear current 4 to 20mA DC, input Type F0 option only, no more than three DIN-A-MITE inputs connected in series
    Shorted SCR Alarm Option
    • Alarm state when the input command signal off and a 15A or more load current is detected by the current transformer
    Alarm Output
    • Energizes on alarm, non-latching
    • Triac 24 to 240VAC external supply with a current rating of 300mA @ 77ºF (25ºC)
    Current Sensing
    • On-board current transformer (CT), typically 0.2VAC output signal per ampere sensed into 1000Ω load
    Agency Approvals
    • CE with proper filter:
      204/108/EC electromagnetic compatibility directive
        EN 61326-1: industrial immunity Class A emissions
        Not suitable for Class B emissions environment
      2006/95/EC low voltage directive
        EN 50178 safety requirements
    • cULus® UL® 508-listed and C-UL® File E73741
    Input Terminals
    • Compression: will accept 26 to 12 AWG (0.13 to 3.3 mm2) wire
    Line and Load Terminals
    • Compression: will accept 6 to 2 AWG (13.3 to 33.6 mm2) wire
    Operating Environment
    • Operating temperature range: 32 to 185ºF (0 to 85ºC)
    • 0 to 90% RH (relative humidity), non-condensing
    • Vibration: 2 g, 10Hz to 150Hz, applied in any one of three axes
    • Storage temperature: -40 to 185ºF (-40 to 85ºC)
    • Insulation tested to 3,000 meters
    • Installation category III, pollution degree 2
    • Back panel mounting; fits the same mounting pattern as a 100A, single-phase mercury displacement relay
    • On-board semiconductor fusing


    · Output Rating Curve of DIN-A-MITE D Power Controller (PG 114)


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