Step relays are able to effectively control lighting or other devices and they significantly simplify circuit complexity at the same time. If you´re familiar with a bistable (latching) relay, then you know, that a relay can keep its status (On/Off) even without a power supply. A step relay, which we´d like to introduce to you this time, is mechanically significantly different from latching relays, but it also features this energy-saving property - i.e. maintaining the On/Off status even without a power supply.
A step relay is usually available with an AC coil and it´s very simply controllable by one push-button switch (momentary SPST-NO). The principle of the step relay is in the fact, that a driving coil mechanically moves a contact mechanism in various sequences. Each switching of a relay (switching a power to a coil) moves a mechanism in one “step” further. In the simplest case the sequence looks as On/Off/On/... But it also can be in other way, as illustrated in the attached picture. Step relay are probably the most frequently used for switching of lighting. This is enabled by a fact, that simple push-button switches, controlling a coil, are connected in parallel. In result, the circuitry gets much simpler and to control one or two lighting circuits from several places, it´s necessary to use only 2 wires (moreover only with a small cross-section - say 0,5mm2). Second saving is in a practically zero power consumption of the relay itself, as energy is only necessary to change a relay status.
Finder 26 series is constructed as a “small box”, which can be placed on a panel but also for example - into a common wall installation enclosure. On stock we keep the type 26.02.8.230.0000, what´s a two-pole (10A) relay with 230Vac coil, with the On/Off sequence. Upon order, we´re able to supply you also versions with 12/24/48/110Vac coils and also modules for usage with 12/24VDC and for usage with illuminated switches.
Detailed information and a comprehensive table about possibilities of usage of particular types will provide you the Finder 26 datasheet. Useful examples of usage of these and also other switching components from Finder will provide you the document „Finder - The Electrician´s guide".
In case of interest in any Finder relay, please contact us at info@soselectronic.com.
- 10A step relay able to significantly simplify installation complexity
- extreme energy saving (consumes energy only for a change of contacts status)
- control by means of one push-button switch
- 12/24/48/110 or 230Vac coil
- possibility to use also on a DC voltage (with additional module)
- small dimensions, easy installation
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What´s the contacts material of this relay?
