CD3000S 2PH

Technical Specification
  • Voltage power supply: 24V min, 480V Max, 600V on request
  • Input Signal: SSR (OFF state <1Vdc ON = 4÷30 Vdc) is standard up to 90A included. Analog input 4÷20mA and 0÷10V is available from 35A (included) to 90A (included)
  • Firing: Zero crossing ZC; Burst Firing 4/8/16 with 4÷20mA or 0÷10V with 12÷24V aux. power supply.
  • Fan Voltage: 230V ± 15% standard f(110V on request opt., if current ≥75A).
  • Heater Break Alarm: Discrimination better than 20%. * Circuit microprocessor based to diagnose partial or total load failure and short circuit on Thyristor. * Latching alarm plus reset. * Relay output 1A at 230V. * Automatic calibration of one or more unit at the same time using a dedicated digital input or using for each unit the calibration button.
  • Approvals: Comply with EMC; cULus available as an option on basic units.
  • Mounting: Din rail mounting up to 90A included.
  • Operating Temperature: 0÷40° up to 90A included (for higher temperature see the derating curve)

General Details

CD3000S 2PH

From 10A to 90A

General description

CD3000S 2PH is the two-phase version of our low cost family of solid state relays designed to replace the now obsolete contactors.

  • Fully isolated from power.
  • Zero crossing firing available with logic input signal (SSR)
  • Constant current drain with SSR input
  • Analog input 4÷20mA or 0÷10V with burst firing 4, 8 or 16 cycle at 50% power demand, is available as an option from 35A to 90A.
  • Heater break alarm (HB) to diagnostic partial or total load failure and short circuit on thyristor, is available as an option from 35A to 90A
  • Side by side mounting.
  • Special design for heatsink with high dissipation
  • Comply with EMC specification CE and cUL

Heater Break Alarm (HB)

  • Microprocessor based circuit
  • Self learning of current set, via external command or push button on front unit.
  • Load break diagnostic with alarm latch.
  • Thyristor short circuit diagnostic.
  • Alarm reset function and possibility to auto reset the alarm if the normal working condition is restored.
  • Alarm output with free voltage contact.
  • Available from 35A÷90A incl.
  • Full insulation between SSR output coming from controller/multi loop and power supply, no common zero in our unit.
  • Easy and fast substitution/calibrate of the unit (also not expert people can do it easy).

Burst Firing (BF)

  • This firing performed in digital mode in our unit gives a lot advantage because switch thyristor faster than normal ZC and at the same time without EMC interferences.
  • Analog input is necessary for BF and can be decided how many complete cycles we want at 50% of power demand.
  • On CD3000S this value can be 4, 8, 16.
  • To have a better resolution use REVEX series, where the BF value can be implemented from 1 to
    255 complete cycles doing the firing less or more fast.
Code / Size

CD3000S 2PH – Order Code

CD3000S 2PH – Size & Dimensions


CD3000 S 2PH – Documentation




ITA_CD3000S-2PH-10-90AManuale d’uso CD3000S 2PH da 10 a 90A (M-3000S2-10-90)ITA


ENG_CD3000S-2PH-10-90AUser Manual CD3000S 2PH from 10 to 90A (M-3000S2-10-90)ENG


FRA_CD3000S-2PH-10-90AManuel d’utilisation CD3000S 2PH de 10 à 90A (M-3000S2-10-90)FRA


GER_CD3000S-2PH-10-90AHandbuch CD3000S 2PH von 10 bis 90A (M-3000S2-10-90)GER
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