General Electric Total Lighting Control Mother Board RRDC12 483C304 Lighting Automation Panel Relay Driver Card

General Electric RRDC12 Relay Driver Card 483C304 – Lighting Automation Panel Controller for Total Lighting Control Systems (12 Relay Outputs, 3 Programmable Inputs)

Condition: Used – no original packaging; appears intact with 30-day money-back guarantee. Minor signs of handling/use possible.

The GE RRDC12 (483C304) is a modular relay driver card specifically designed for General Electric’s Total Lighting Control (TLC) systems, particularly Lighting Automation Panels (LAP). This board manages and controls up to 12 individual relays, while also providing 3 programmable system switch inputs for integration with global control logic such as time schedules, occupancy sensors, or manual switches. Its modular architecture allows plug-in compatibility with other TLC components, making it a central part of scalable commercial lighting control installations.

It supports status monitoring via pilot contacts, direct switching logic, and allows grouping of up to 3 relays to be operated from a single output – ideal for coordinated lighting zones. The RRDC12 is engineered for integration into networked lighting systems, including support for BACnet, LON, or Modbus protocols when used within certain GE control panel assemblies.

⚙️ Features

• Controls 12 relay outputs per module
• Includes 3 programmable system switch inputs
• Monitors pilot contact feedback for each relay
• Supports grouped relay control (up to 3 relays per output)
• Compatible with occupancy sensors, switches, and centralized control logic
• Plug-in modular design for easy installation and maintenance
• Facilitates global relay control across networked panels
• Designed for commercial and industrial lighting systems
• Manufactured in the United States
• Part Number: RRDC12 / 483C304

🧩 Compatible Systems, Panels & Controllers

The RRDC12 interfaces directly with the GE Total Lighting Control system components, especially the Lighting Automation Panels (LAP series). It is generally interchangeable within supported configurations and can be used in expansion or repair scenarios for existing systems.

Below is an organized list of compatible and associated components:

✅ Lighting Automation Panels (LAP series)

• LAP12, LAP24, LAP36, LAP48 – LAP panels supporting 12 to 48 relays; each RRDC12 manages 12 relays
• LAPU (Universal version) – where modularity and driver board plug-in functionality is required
• LAPx-ENC – Enclosures that house LAP modules and RRDC12 cards

✅ Relay Modules & Boards

• RRL12, RRL24, RRL36, RRL48 – Relay modules in various counts interfacing directly with RRDC12
• RR Relay Assemblies – Including individual RR-7, RR-9, and RR-9-Latching relays used in TLC systems
• RRD12 Output Interface Boards – Predecessor or related logic controller boards
• RRDC12R – Remanufactured or revision versions of the RRDC12

✅ Controllers and Interfaces

• GEMnet Controller – For BACnet/LON/Modbus communication between RRDC12-equipped LAP panels
• LCS (Lighting Control Software) – Interfaces with RRDC12 boards via head-end systems
• GEMnet Site Manager / Interface Panel – Interfaces with building automation systems

✅ Input Devices

• GECON Switches
• TLC Occupancy Sensors
• Daylight Harvest Sensors
• Override wall stations and timers – Can use the 3 programmable system switch inputs

🔁 Comparable or Interchangeable Models

While direct substitutions for the RRDC12 are limited due to its specific system integration, the following may apply depending on the system configuration:

• GE RRDC12R – Remanufactured version (functionally identical)
• RRD12 (Relay Driver Board) – May be used in older LAP panels with modification
• GE 547C901P1 / 547C901P2 – Older driver modules used in legacy TLC setups
• GE RRDCxx Series – Other RRDC variants designed for larger or modified panels

Note: Always verify firmware compatibility if replacing older RRDC boards, as GE firmware or controller configuration may vary.

📌 Use as Part of Larger System

The RRDC12 is not a standalone device. It functions as part of a modular lighting automation system and plugs into LAP panels, which provide relay banks and networking capabilities. It’s crucial for:

• Controlling lighting zones in large commercial buildings
• Responding to sensor-based inputs for energy savings
• Automating facility lighting based on time schedules and occupancy

Typical system components working in conjunction:

• RR Relays (RR-7, RR-9)
• GE LAP Enclosures
• Power supplies (GE 24VAC transformer for logic boards)
• Network interfaces (BACnet, Modbus gateways)
• GEMnet system software or GE Central Lighting Controller (CLC)

🔄 Related

• Lighting relay controller card
• GE RR relay driver module
• Automation panel relay interface
• Lighting control system board
• Lighting automation relay logic controller
• RRDC12 GE Total Lighting Control
• Motherboard for GE LAP panel
• Panel relay controller for commercial lighting
• Facility lighting interface board
• GE 483C304 relay card

Common Requests:

1. “GE RRDC12 compatibility with LAP24 lighting panel”
2. “Replacement driver card for GE RR-9 relay system”
3. “Lighting control board for GE Total Lighting Control system”
4. “GE 483C304 relay driver module wiring and specs”
5. “RRDC12 programmable relay output board with 3 system inputs”

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