Illuminated switches for industrial use
6 August 2008
Switches, Relays & Keypads
Series 04 from EAO is a comprehensive choice of sealed, illuminated switches which combine style and industrial durability.
The range has an extensive choice of possible combinations, including square and round indicators and pushbuttons, rotary switches, emergency stops and mushroom-headed pushbuttons; a compact, round indicator is also available.
Depending on requirements, the lens on the pushbutton or indicator can be flush-mounted to the front panel or raised for viewing the status from the side. An extended or sealed ring can be fitted where extra lens protection is required. A selection of lens colours and film inserts for legends or symbols is also available. Both the lens and lamp are serviceable through the front panel.
Filament lamp, neon or multichip LED provides illumination with a choice of either continuous or flashing light elements. Operating at relatively low current levels, the LEDs have a virtually limitless service life; they are very resistant to shock and vibration and their operating characteristics change little with age.
Series 04 indicators and snap-action or slow-make pushbuttons come standard with hard silver contacts. However, for particularly aggressive environments, silver/palladium contacts can be specified, and for switching lower currents a gold plated contact is available. There is a choice of either screw or plug-in terminals. The variety of switching elements enables currents from 2 mA at 110 V d.c. to 10 A at 24 V d.c.
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