The APEM AC3561 is a robust 16-key matrix keypad designed for demanding applications. It incorporates a black background with silver perimeter embossing and clear windows, providing excellent visibility and tactile feedback. Electrical specifications include a 30V contact voltage rating, 100mA current rating, and high insulation resistance. The keypad operates reliably within a temperature range of -30°C to +55°C, making it suitable for harsh environments. Supplied with four inserts featuring black graphics on a silver background, this keypad offers versatility and customization options.