CL3R and CMR riser cables are designed for vertical runs between floors where controlled flame spread is required. CL3R is a 300V power-limited cable commonly used for security systems, audio lines, and building control circuits. CMR is the riser-rated option for voice and data communication wiring. Both cable types provide safe, code-compliant performance in commercial buildings, delivering dependable signal and power transmission through riser shafts and wall cavities.
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