Modular Switches Offer Maximum Design Flexibility


EAO Switch Corporation of Milford, CT USA, a premier global supplier of Human Machine Interface (HMI) systems and components, announces today a new line of durable, stylish, and modular Series 04 switches. This globally recognized selection of square and round indicators, pushbuttons, rotary switches, emergency stops and mushroom-headed pushbuttons offer manufacturers maximum design flexibility together with fast and simple construction for a variety of applications. EAO’s Series 04 pushbuttons and indicators can be flush-mounted to a panel, providing protection against accidental operation, or raised for viewing the status from the side. Additional lens protection can be achieved with an extended or sealed ring. Lenses are available in a selection of colors, have film inserts for legends or symbols, and may be illuminated with either high-intensity LED's that have a virtually limitless service life or incandescent lamps.

Series 04 snap-action or slow-make pushbuttons come standard with hard silver contacts. For particularly challenging environments, silver/palladium contacts can be specified. For switching to lower currents, a gold plated contact is available. There is a choice of either screw or plug-in terminals. A variety of switching elements enables currents from 2mA/110VDC to a maximum of 10A/600VAC.

Reliability is guaranteed with EAO’s Series 04 range of switches. Each switch meets worldwide standards and approvals, as well as all export requirements. In addition, the modular Series 04 fulfils all customer needs in terms of functionality and design.


• Front size 29 mm dia. 30 x 30 mm 35 mm dia. 35 x 35 mm 37 mm dia. 38 mm dia. 40 mm dia. • Front protection IP 40 IP 54 IP 65 IP 67 • Mounting hole size 22.5 mm dia. 30 x 30 mm 30.5 mm dia. 33 mm dia. 33.5 mm dia. • Switching System Slow-make switching element • Snap-action switching element • Switch rating 250 VAC, 10 A 500 VAC, 10 A Illumination Filament lamp LED
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