Skip to main content
Closed Opens tomorrow 8 AM +1 913-529-2233

    Value Relay Boxes & Retrofit Control

    Add simple, reliable power switching to existing electrical panels and distributed AV systems with DMX relays and retrofit controllers.
    Showing 1-4 of 4

    Filter Products

    Types
    +
    Power Distribution
    +
    Power Control
    +
    Power Accessories
    +
    Statuses
    +
    Series
    +
    Product Region
    +
    ABOUT RETROFIT & RELAY CONTROL

    Add intelligent control to any circuit.

    These solutions provide a direct path to upgrade existing breaker panels or control distributed loads without a complete system overhaul.

    LynTec’s retrofit and value relay products are engineered to solve common power control challenges in existing facilities. Our retrofit controllers like the RBLC and MRTS series add DMX, serial, or sequencing capabilities to standard Square D panels, enabling modern control over legacy infrastructure. This approach saves significant cost and complexity compared to a full panel replacement.

    For distributed applications, simple and robust relay boxes like the DDR provide portable, IP-rated DMX control exactly where it’s needed. This is ideal for controlling remote fixtures, projectors, or temporary equipment while minimizing complex and expensive cable runs back to a central rack.

    WHY IT MATTERS

    Targeted control for existing systems.

    01

    Upgrade existing panels, not replace them.

    Our retrofit controllers are designed to integrate with common Square D load centers. This allows you to add motorized breaker control using DMX, RS-232, or simple sequencing without replacing the entire panel, saving on labor and material costs.
    02

    Extend power control to remote and portable equipment.

    The IP-rated Dual DMX Relay (DDR) places two 16A switched outputs anywhere on your DMX network. This simplifies power infrastructure for distributed fixtures, projectors, and other remote gear in touring, temporary, or architectural installs.
    03

    Engineered for simple, reliable integration.

    By using industry-standard protocols like DMX, RDM, and RS-232, these devices integrate seamlessly into existing lighting and AV control systems. They provide a straightforward, dependable method for adding circuit control without complex programming.
    FAQ

    Your questions, answered.

    Common questions about retrofitting panels and using value relay boxes.
    Are any of your relay boxes suitable for outdoor or touring use?

    Yes. The DDR Dual DMX Relay is specifically engineered for these environments. It features a rugged, IP-rated housing that protects the internal components from dust and moisture, making it a reliable choice for outdoor architectural lighting, temporary events, and touring productions. Its compact, portable design and flexible mounting options allow for rapid and secure deployment on truss or scenery.

    Can I add new control modules to an older LynTec panel?

    Yes, our modular design is engineered for forward compatibility. Most modern LynTec panels, including the RPC, RPCR, and NPAC series, are designed to accept field-installable modules. This allows you to add new capabilities like DMX, sACN, or BACnet control to an existing installation.

    For very old or legacy systems, we recommend consulting our engineering team to verify compatibility and explore available upgrade paths. The goal is to extend the life of your core infrastructure whenever possible.

    Can I add power sequencing to a panel that doesn’t have it?

    Absolutely. This is a primary application for our retrofit controllers. By installing a kit like the MRTS series into a compatible Square D panel, you can add intelligent startup and shutdown sequencing to existing circuits. This protects sensitive audio and video equipment from damaging inrush currents without needing to install a new, dedicated sequencing panel.

    Can I use an SC Series panel to retrofit an existing installation?

    Yes, the SC Series is designed for both new construction and retrofits. You can specify a complete new panelboard or load center for a new build. For existing infrastructure, you can select a relay-only panel to add serial control capabilities to a system that is already in place.

    Do retrofit kits work with standard breakers or do I need motorized ones?

    LynTec retrofit controllers are designed to operate motorized circuit breakers. They provide the mechanical interface and control logic to physically switch these specific types of breakers on and off via DMX, serial, or a sequencing command. Standard thermal-magnetic breakers cannot be remotely controlled and would need to be replaced with their motorized equivalents during the retrofit installation.

    What control protocols do your retrofit kits and relays support?

    Our value relay and retrofit solutions are designed for seamless integration into existing AV and lighting systems. They primarily use industry-standard protocols like DMX and RDM for lighting control, as seen in our DDR relay. For broader system integration, many of our retrofit controllers also support RS-232 serial commands. This ensures compatibility with a wide range of third-party control systems.

    What is the advantage of using distributed relays over centralized panels?

    Placing control relays near the fixtures, a key feature of our lighting ecosystem, significantly simplifies infrastructure. This distributed approach reduces the length and complexity of power cabling, which minimizes voltage drop and saves on material and labor costs. It’s an efficient way to manage power for fixtures spread across a large venue, truss, or architectural feature.

    What is the primary application for the SC Series?

    The SC Series is engineered specifically to integrate branch circuit control with legacy automation systems that use RS-232 serial communication. It provides a direct, native control path for older Crestron, AMX, or other serial-based controllers without requiring network gateways or protocol converters.

    When should I specify an RT Series unit instead of a networked model?

    The RT Series is engineered for applications where direct, non-networked control is required for maximum reliability. Choose the RT Series when you need to integrate with systems like life safety alarms, simple key switches, or basic control panels that provide a relay output.

    It is the ideal solution when network access is unavailable, unreliable, or when advanced monitoring and remote management are not required for the equipment being controlled.

    When should I use a relay box instead of a full panelboard?

    A relay box like the DDR Dual DMX Relay is ideal for controlling distributed or remote equipment where running dedicated circuits back to a central panel is impractical or too costly. Use a relay box for portable AV gear, fixtures on a lighting truss, or temporary outdoor installations. It places simple, reliable DMX-controlled power exactly where you need it, simplifying cabling and setup.

    Which existing electrical panels are compatible with LynTec upgrade kits?

    Our upgrade kits are engineered to retrofit many existing LynTec panels and select third-party enclosures. The primary goal is to replace the legacy controller while preserving the investment in the main enclosure, conduit, and wiring.

    Because every installation has unique factors, we recommend contacting our engineering team with the make and model of your existing panel. They can confirm compatibility and help you identify the correct kit for a successful modernization project.

    Which existing electrical panels can I retrofit with your controllers?

    Our retrofit controllers, such as the RBLC and MRTS series, are specifically engineered to integrate with common Square D load centers and panelboards. This design allows you to add modern, motorized breaker control to legacy infrastructure without requiring a complete and costly panel replacement.

    For specific compatibility questions, it is always best to consult the product documentation or contact our engineering team to ensure a proper fit for your project.

    If you have any inquiries about our products, feel free to ask us or visit our help desk for more information.
    EXPLORE MORE

    Browse other categories

    Support Hardware & Accessories

    A complete range of installation hardware, from mounting brackets and plates to specialized connectors and sensors, all engineered to simplify the deployment and enhance the reliability of LynTec power control systems.

    Power Sequencing & Remote Control

    Network-enabled and standalone power sequencers that protect sensitive AV equipment with safe, automated startup and shutdown routines. Products range from simple rack-mount units to facility-wide, remotely managed systems.

    Lighting Ecosystem

    Integrated power control solutions designed for modern lighting systems. Includes DMX-controlled relays, panels, and sequencers that simplify infrastructure and provide centralized management for distributed fixtures.

    AVL Ecosystem

    Integrated power control infrastructure for large-scale audio, video, and lighting systems. Includes network-enabled breaker panels and controllers that centralize power management, sequencing, and protection for an entire facility.

    Rack Power Distribution

    Commercial-grade rack-mount power distribution units (PDUs) designed for reliability and ease of installation. These units provide a robust foundation for powering AV and IT equipment in standard 19-inch racks, with essential protection and practical features for professional integrators.

    Power Conditioning & Surge Protection

    Rack-mount surge protectors, power conditioners, and uninterruptible power supplies (UPS) engineered to safeguard sensitive AV and IT equipment from damaging power anomalies and ensure system uptime.

    Standalone Ecosystem

    Self-contained power control and sequencing solutions designed for simple, reliable operation in smaller or isolated AV systems. Ideal for applications requiring robust power management without complex integration.

    Building a project around retrofit control?

    Our engineers can help you determine the right controller to add sequencing or DMX control to your existing electrical infrastructure.