Vandal-proof keypads

25 March 2008

Die-cast zinc makes these keypads from Lorlin Electronics secure and rugged.

The KP range of vandal-proof metal keypads has been developed in response to demand for secure and rugged security switching in industrial and public applications, such as access control, vending machines and kiosks, environmental control and service access.

The keypads can be specified with one, two, three, four, 12 or 16 buttons and for front or rear mounting onto a flat surface. The keys can be lit by LEDs, which in turn can be blue, red, green, white and yellow. There is also a choice of casing and button colours. Low-profile mounting bezels are available for fixing from the rear of the control panel so that there are no mounting screws to be attacked by vandals.

The powder-coated, zinc keypads have an anti-pull key design and can also be finished in brushed chrome or bright silver. The keypad is IP-rated for weather, water and dust resistance.

Switch contacts are rated at 24V DC at 20mA and are reliability-tested to 4,000,000 cycle/key. Electrical connection is to 2.5mm pitch PCB terminals.

The keypad is CE and RoHS-compliant and has an operating temperature of -40°C to +80°C and is impact-resistant to 20 joules via a 50mm steel impactor.


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