Tefcold Door-Switch Magnet for Commercial Refrigeration

A door-switch magnet keeps commercial refrigeration units operating correctly by ensuring the door seal triggers the internal switch. When the door closes, the magnet pulls the switch into contact, signalling the unit to resume cooling. Without this signal, the compressor may not start, or the interior light may stay on, wasting energy and risking food spoilage. The magnet is mounted on the door frame or the door itself, aligned with the switch mechanism inside the cabinet. As the door shuts, the magnet's field engages the switch, completing the circuit that controls cooling and lighting. This simple but precise interaction prevents false signals that could disrupt temperature control or increase running costs. Installation involves positioning the magnet so it aligns exactly with the switch when the door is closed. The magnet is typically secured with adhesive or a small bracket, ensuring it remains fixed despite repeated opening and closing. Once in place, the magnet requires no further adjustment or power, operating passively as the door moves. This component is constructed as a permanent magnet, requiring no external power source. Its role is purely mechanical, relying on magnetic attraction to activate the switch without physical contact. The absence of moving parts or electrical connections makes it durable and low-maintenance, suitable for high-traffic kitchen environments. The magnet fits Tefcold commercial refrigeration units, including under-counter fridges, upright cabinets, and display cases. This magnet completes the circuit only when the refrigeration door is fully closed, preventing the compressor from running with cold air escaping.