GE 437D491 Rev. F Lighting Control Panel Mother Board

GE 437D491 Rev. F Lighting Control Panel Mother Board

Condition: New. Open box.

The GE 437D491 Rev. F is a motherboard designed for use in General Electric’s Lighting Control Panels, typically within the Total Lighting Control (TLC) product family. This PCB functions as the central control hub inside lighting automation panels, serving as the main interface for zone controllers, relays, network communication modules, and power supply connections. It is engineered for modular, expandable lighting automation, suitable for commercial, industrial, and institutional applications.
This Rev. F version reflects one of the latest production iterations of the board, offering enhanced reliability, firmware support, and potentially upgraded components over earlier revisions. It is critical for restoring or expanding GE TLC systems, particularly in schools, retail centers, hospitals, or large facilities using centralized lighting automation.

🔧 Features:
Part Number: 437D491
Revision: F
Function: Lighting control panel motherboard (central logic and communication board)
Mounting Type: Chassis/rail-mounted within GE TLC panel
Connector Types:
Edge connectors for relay driver cards
Terminal blocks for zone switches and overrides
Ribbon and modular jacks for communication links
Compatibility: Designed for GE Total Lighting Control panels
Power Supply Handling: Receives power from panel PSU and distributes to logic modules
Communications: Likely RS-485 or similar (GE protocol-based)
Voltage Handling: Low-voltage logic control (typically 12–24V DC internal operation)
Status LEDs: Diagnostic indicators for communication, power, or zone faults

🏭 Applications:
GE Total Lighting Control (TLC) systems in:
Commercial buildings and office spaces
K-12 schools and university campuses
Hospitals and medical facilities
Retail outlets and shopping centers
Industrial buildings requiring automated or scheduled lighting
Central logic board in relay control cabinets
Part of retrofit and expansion upgrades for existing GE TLC panels

🔄 Cross-Referenced / Compatible Models:
GE TLC Panels: All models that use 437D491 mainboard, including:
TLC Lite, TLC Modular Panels
GE Relay Cabinet Systems with programmable logic
Alternate PNs or compatible versions:
437D491 Rev. C/D/E (older revisions of same board)
GE 437D493 – Auxiliary motherboard (used in tandem)
TLC Smart System Subpanels and Switch Interface Modules (SIMs)

📌 Comparable Products:
Lutron Quantum QS processors – Similar role in advanced lighting systems
Leviton GreenMAX Relay Panels – Alternative commercial-grade lighting controls
Wattstopper LCAP panel controllers – Comparable lighting control logic boards
Crestron CLS-EXP family – Distributed lighting automation systems
Note: While these are functionally similar, they are not drop-in replacements, and the 437D491 is specific to GE panels.

🧩 Part of Larger Systems:
The 437D491 motherboard is the core of GE lighting control enclosures, providing:
Power and signal routing between the power supply, relays, and control inputs
Integration with lighting schedules, occupancy sensors, or manual override switches
Connectivity to central control software or BACnet/MSTP networks (depending on configuration)
May be used alongside:
GE Relay Driver Boards
Power supplies (e.g., GE 437D492)
Override/Zone Control Switch Inputs
Time clocks or building management integration modules

⚠️ Trademark Disclaimer:
All product names, logos, brands, and other trademarks mentioned are the property of their respective owners. These names are used solely for identification purposes and do not imply endorsement or affiliation with General Electric.

Related:
GE lighting controller motherboard
437D491 Rev F main PCB
lighting automation system central board
GE TLC lighting panel logic board
control panel replacement PCB
commercial lighting control interface board

Common Requests:
“Replacement motherboard for GE lighting control panel”
“What is GE 437D491 Rev. F used for?”
“Used vs new lighting control panel motherboards”
“GE TLC relay panel control board replacement”
“Open box 437D491 compatible systems”

All product names, trademarks, and registered trademarks are the property of their respective owners. Use of these names does not imply any affiliation or endorsement.

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