Elevator Power Supply Board Relay Board 204C2471 H22 with Power Distribution and Circuit Protection

Elevator power supply board relay board high-quality power control cabinet power supply board 204C2471 H22

Core Function Breakdown:
**Power Distribution and Conversion:** Receives three-phase/single-phase AC input, rectifies and filters it, and outputs multiple stable DC/AC voltages (such as 24V control voltage and 110V brake voltage) to power components such as the PLC, contactors, and door operator controllers within the control cabinet.

Isolates high-voltage and low-voltage circuits to prevent interference with main control system signal transmission.

Circuit Protection and Fault Handling: Integrates overcurrent, overvoltage, and undervoltage protection circuits. When the input voltage is abnormal or the load is short-circuited, it automatically disconnects the corresponding circuit to prevent component damage.

Supports fault signal feedback, transmitting power abnormality information to the main control board for easy fault diagnosis and maintenance.

Timing Control and Logic Coordination: Controls the power supply sequence of each load according to the elevator's operating logic (e.g., start, stop, brake release/lock), ensuring the door operator, brake, and drive system operate in sequence to guarantee elevator safety.

Switches power supply status in conjunction with special modes such as fire protection and maintenance (e.g., prioritizing power supply to critical circuits in fire protection mode).

System Adaptation and Compatibility: Designed specifically for modern STVF5 series elevators, compatible with single-elevator/parallel systems, serving as the core of power management to ensure coordinated operation of all elevator components.