Seloon Elevator Call Button A4J18481 Square Braille Push Button

Seloon Elevator Call Button A4J18481 Square Braille Push Button

KONE elevator main board KM773380G04, also marked LCECPU40, is the core central control PCB exclusively developed for KONE MiniSpace elevator systems. As the elevator’s master CPU unit, it undertakes all core logic operations of the lift, processing landing calls, car calls, speed regulation, automatic leveling, door control sequence and real-time monitoring of safety circuit signals. It communicates seamlessly with drive modules, display boards, encoders and other peripheral components to realize closed-loop coordinated control and stable elevator operation.

Adopting high-quality PCB substrate and industrial-grade chips, this main control board features powerful computing capacity, excellent anti-interference performance and stable signal transmission under long-time continuous operation. It supports elevator group control function and software version upgrade, and enjoys great compatibility, which can directly replace KM773380G02 and other old versions. Every board undergoes strict aging and function testing before delivery, effectively reducing common faults such as random shutdown, leveling deviation and communication failure. Standard and unified interface layout simplifies wiring, installation and commissioning. It is a highly reliable replacement spare part for daily maintenance, fault replacement and elevator modernization projects, helping cut downtime and greatly improve elevator safety and riding comfort.

The internal micro-switch features sensitive feedback and long service life, capable of enduring millions of presses without sticking or failure. The integrated PCB board has stable signal output and good moisture and corrosion resistance, suitable for long-term operation in busy shopping malls, office buildings and residential buildings. Its standard square structure and plug-in connector greatly simplify on-site replacement and wiring, no complicated adjustment required. Every unit passes strict function testing before shipment to reduce on-site faults such as dim light, no response and signal loss. It is a cost-effective replacement spare part for elevator routine maintenance, panel refurbishment and elevator renovation projects, helping to restore stable elevator call function and improve passenger experience.