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Thyristors simplify control of heating loads

28 August 2012

CD Automation has introduced s thyristor power controller - the REVO S - that handles heating elements for applications such as ovens and furnaces, heat treatment and a wide spectrum of electrical loads, from simple single-phase heaters up to complex high temperature-coefficient three phase loads.

The REVO S handles current to 2.5kA and is intended for a variety of heating elements. The thyristor power controller provides competitively priced entry level control and is designed to save space and labour.

The S in REVO S stands for solid state relay, which is a simple on-off type device using DC logic signals from a temperature controller or similar control mechanism. Compact and low cost, the REVO S is designed to replace contactors and is suitable for all resistive switching applications.

It can also provide time-proportioned on-off or burst firing, which is used with dc linear type signals, like 4-20mA current or 0-10V voltage. This will switch bursts off, then on, for better temperature control. 

The REVO S is a self-contained unit mounted on high-dissipation heat-sinks. Integral quick-blow fuse and holder can be supplied on unit sizes 30A to 40A as an option, with internal fixed fuses on 60A upwards as standard. It is ideal for normal resistance, medium and long wave IR load types.

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