Product Description
Lightronics RA121 Rack Mount Dimmer 12 Channels 1200W Per Channel
Please contact us so we can help you custom configure this product.
Overview
The RA121 is a 12-channel architectural rack-mount dimming system designed for permanent lighting installations requiring reliable forward phase dimming and non-dim (relay type) control, within integrated architectural control environments. Compatible with the Lightronics Unity Architectural Lighting System (LitNet), it supports DMX-512 control, remote station operation, and local scene recall. Rated at 1200 watts per channel with a total system capacity of 14,400 watts, the RA121 is well suited for churches and houses of worship, theaters, schools, conference spaces, and other multi-purpose venues requiring scalable installed lighting control.
The RA121 supports DMX-512 control, architectural remote stations, and contact closure operation for flexible system integration across installed lighting environments. Integrated scene memory allows lighting presets to be stored and recalled without requiring a dedicated lighting console, making the system well suited for both everyday architectural operation and performance-based applications.
Designed as part of the Lightronics Unity Architectural Lighting platform, the RA121-DP communicates with compatible remote stations over the Lightronics Unity Architectural System (LitNet) using an RS-485 architectural control bus. This allows lighting control access from multiple locations throughout a facility while supporting scheduled operation, backup scene playback, and simplified day-to-day lighting management.
Each channel provides 1200 watts of forward-phase dimming capacity and is protected by fast-acting magnetic circuit breakers for dependable long-term operation. Designed for use with incandescent and compatible dimmable fixture types, the RA121-DP operates on 120/208VAC three-phase or 120/240VAC single-phase power systems with 120A per leg. Its rack-mount construction, architectural integration capabilities, and high-capacity dimming performance make it a reliable solution for demanding permanent installation environments.
Features
- 12 channels, 1200W per channel (14,400W total)
- Forward phase dimmed 120VAC output with non-dim (relay type) capability
- Compatible with Unity Architectural Lighting Control systems (LitNet)
- DMX-512 lighting control compatibility
- Hardwired terminal input
- Standard 120V Edison output connectors (3-prong wall outlet)
- Integrated 100 scene memory
- Contact closure input support
- Supports incandescent, halogen, fluorescent, and LED fixtures
- Fast-acting magnetic circuit breakers
- Optimal Smart Fan control to minimize noise
- 19-inch rack-mount design
- UL-508 compliant
Options
- 230V - 230 Volt Operation
- SO - Socapex Outlet Panel *Non UL-508 Compliant
- PL - Powerlock Outlet Panel *Non UL-508 Compliant
- DP - Edison Duplex Outlet Panel
- XT - Terminal / Barrier Connector Strip with Knockout Cover
Please Note:
1. Three Phase - 208VAC across two Hots and 120VAC Hot to Neutral
2. Single Phase - 240 VAC from Hot to Hot and 120 VAC from Hot to Neutral?
Please contact us if you are using a different power source so we can configure the correct product
Specifications
- Channels/Capacity: 12 @ 1200 Watts each
- Power Requirements: 120/208VAC Three Phase, 40 Amps each Leg OR 120/240VAC Single Phase, 60 Amps each Leg
- Power Devices: Dual 65 Amp SCRs
- Power Connector: Terminal Strip
- Channel Output: Edison, Terminal Strip, Patch Panel, Socapex
- Circuit Breakers: 10 Amp Fast Acting
- Minimum Load: 15 Watts
- Curve: Modified Square Law
- Filter Rise Time: 350 Usec. Minimum
- Output Function: DIMMER or RELAY Selectable
- Control Input: DMX-512 USITT Standard with Softpatch
- Front Panel Control: 8 char. x 2 Line LCD Display & Keypad
- Remote Network: RS-485, 62.5 Kbaud, Bidirectional 9 Bit Network
- Local Presets: 100 Scenes Standard, Expandable to 255 Scenes
- Closure Input: 8 Inputs for Single, Dual Button, or Combine Stations
- Remote Stations: Total of 32 Remote Station with Unique System Addresses
- Slave Units: Up to 31 addt’l. units may be added
- Size: 19”W x 3.5”H x 13”D
- Weight: 27 Pounds
Note: Specs will vary by option.