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Watlow has manufactured solid state power controllers for over forty years. Watlow's POWER SERIES™ is a microprocessor-based product that features application flexibility unmatched by any other silicon controlled rectifier (SCR) power and solid state controller on the market today.

Watlow's POWER SERIES solid state controllers include single- and three-phase models from 65 to 250 amperes. Field configurable phase-angle or zero-cross firing improves application flexibility on-site where needed.

50/60Hz independent operation allows utilization almost everywhere in the world without special calibration considerations. Serial communication via Modbus® RTU allows setup and monitoring of load status from a computer station or control room.

On-board semiconductor fusing improves reliability by protecting the SCRs from heater short circuits. Plus, on-board heater bakeout and control diagnostics can help eliminate initial start up problems. All these benefits are in a touch-safe package that can be quickly and easily mounted in a control cabinet.

Watlow's POWER SERIES solid state controllers are UL® listed and C-UL® recognized, ensuring that they meet world safety and operational standards.

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Specifiche tecniche:

Montaggio:  Back panel
Max. Uscita:  250A
Accensione Uscita:  Zero Cross, Phase Angle
Configurazioni di Fase:  1 or 3
0 to 85°C  (32 to 185°F)
Certificazioni:  UL®, C-UL®, CE, SCCR
Protocolli di Comunicazione:  Modbus® RTU
14 in. (354 mm) H x 7.5 in. (191 mm) W x 7.9 in (200 mm) D
Note: The specifications in the table above are best available values in ea Not all combinations of these values are available in a single model number


Caratteristiche Vantaggi
200KA short circuit current rating (SCCR)
  • Prevents arc flash
Snap-fit on a pre-mounted plate
  • Simplifies installation
Available in 65 to 250 amperes ratings
  • Handles a wide range of loads
Adjustable soft start
  • Provides application flexibility
Heater and control diagnostics capability
  • Monitors actual heater and controller performance
Electrically touch-safe package
  • Enhances safety for installer and users
Serial communications with Modbus® RTU protocol
  • Provides computer control and/or monitoring
Multizone capability
  • Increases application flexibility and reduces panel space

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CAD Drawings (4)

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POWER SERIES Controllers
POWER SERIES Controllers