Overview
A take-up reel manages the wired connection between a garage door safety edge and the door operator. As the door opens and closes, the sensing edge at the bottom of the door moves with it — but the operator stays fixed at the top. The take-up reel bridges that gap with a spring-loaded retractable cord that extends as the door opens and coils back up as the door closes.
Without a take-up reel, the wiring between the sensing edge and the operator would hang loose, tangle, catch on moving parts, or wear through from repeated flexing. The retractable reel keeps the cord managed and protected through thousands of door cycles, maintaining a reliable electrical connection between the safety edge and the operator at all times.
Barron Equipment carries take-up reels in 2-wire and 3-wire configurations, plastic and metal housings, and 20-foot and 30-foot cord lengths to match the full range of commercial garage door installations.
2-Wire vs. 3-Wire
The wire count determines compatibility with your sensing edge system. A 2-wire take-up reel carries two conductors and is used with non-monitored safety edges that send a simple open or close signal to the operator. A 3-wire take-up reel carries three conductors — two for the signal and one for a ground connection — and is required for monitored safety edge systems that continuously verify the sensing edge circuit is intact.
Check your safety edge and operator specifications to confirm whether your system requires a 2-wire or 3-wire connection. Using the wrong wire count will result in an incompatible installation.
Plastic vs. Metal Housing
Plastic-housed take-up reels are lighter and suitable for standard commercial installations where the reel is protected from physical impact. Metal-housed reels provide heavier-duty construction for industrial environments where the reel may be exposed to equipment traffic, vibration, temperature extremes, or other demanding conditions that could crack or damage a plastic housing over time.
Cord Length
The 20-foot models accommodate standard-height commercial garage doors. The 30-foot models are designed for high-ceiling installations where the door travels a greater vertical distance and requires a longer cord to maintain a connected circuit through the full range of travel. Measure the distance from the safety edge at the bottom of the door to the operator at the header and select the cord length that covers the full travel distance with some slack.
SO Insulation Jacket
The TRM03-SO-Z model features an SO-rated insulation jacket on the cord. SO cord uses a heavier rubber jacket that provides enhanced resistance to abrasion, oil, moisture, and mechanical damage compared to standard insulation. This is the right choice for harsh industrial environments — manufacturing floors, wash-down areas, and facilities where the cord is exposed to chemicals, oils, or physical wear beyond what standard insulation can handle.
Available Models
- TR2-00-Z — 2-wire, plastic housing, 18 gauge, 20 ft
- TR2-MT-Z — 2-wire, metal housing, 18 gauge, 20 ft
- TR3-00-Z — 3-wire, plastic housing, 18 gauge, 20 ft
- TRM03-00-Z — 3-wire, metal housing, 18 gauge, 30 ft
- TRM03-SO-Z — 3-wire, metal housing, 18 gauge, 30 ft, SO insulation jacket
Selection Assistance
Selecting the right take-up reel requires matching three variables to your installation: wire count, cord length, and housing material.
Start with the wire count. Check your safety edge system — if it uses a monitored sensing edge, you need a 3-wire reel. If it uses a non-monitored edge with a simple signal circuit, a 2-wire reel is sufficient.
Next, determine the cord length. Measure the vertical travel distance of the door from closed to fully open, then add the distance from the door header to the operator mounting point. A 20-foot cord covers most standard-height doors. Doors with ceiling heights above 14 feet or doors that travel a long vertical distance typically require a 30-foot cord.
Finally, choose the housing material. Plastic is appropriate for most protected commercial installations. Metal is recommended for industrial environments with heavy equipment traffic, vibration, or exposure to impact. For the most demanding environments, the SO jacket model adds an additional layer of cord protection.
Not sure which reel fits your system? Contact the Barron Equipment team and we can help match the right take-up reel to your door, operator, and safety edge configuration.