T-21 Mounting Rack
The T-21 mounting frame holds any conventionally framed modules, normally in 2 rows. Each row can be up to 163" long. This works well for 72 cell modules (175s) which are about 32" wide, and 54 or 60 cell modules (200s) which are about 39" wide. This works out to up to (10) 175-185W modules or (8) 200-250W modules.
What makes the T-21 single-axis tracker better than other solar panel mounting solutions?
1. Works on standard 6" pipe. Does not require precise foundation layout or a level site. Typical foundation is 24" diameter by 6' deep, plus a wider footing.
2. Central parts of the frame are welded A36 steel. The pivoting table rides on greasable steel bearings.
3. Mounting Rails are our own proprietary aluminum extrusions.
4. Both rail position and mounting clip position are adjustable to be compatible with any brand of module with conventional rear mounting holes.
5. Simple design with low parts count for faster installation. Nuts and bolts are minimized by using welded connections and pins.
6. Simple elevation angle adjustment. We believe that adjusting seasonal elevation angles is important, especially with single axis tracking.
7. Included with the T-21 is an American-made linear actuator. The mounting of an actuator on a tracker is extremely important; failure of the attachment points can lead to broken modules. This is practically impossible with the T-21 since all connections are pins instead of nuts and bolts or clamps which can loosen. High quality protective boots are included with the actuator.
8. 10 year limited warranty on the frame, 5 year limited warranty on the actuator.
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