Bulk 25-Pair Plenum Communications Cable — Cat 3 • 24 AWG Solid Copper • CMP Plenum • Gray
CMP Plenum Rated  | UL Listed • Flame-Retardant Jacket • Cat 3
This bulk 25-pair Cat 3 cable is built for commercial plenum air-handling spaces where low-smoke, flame-retardant construction is required. It uses solid 24 AWG copper conductors for dependable punchdown terminations on 66/110 blocks, patch panels, and cross-connect hardware in voice and legacy data applications. Finished in a clean gray jacket for easy ID in telecom pathways.
Typical Applications
- Plenum pathways — return-air ceilings and air-handling spaces
- Voice systems — PBX, key systems, station cables, and riser-to-plenum transitions
- Legacy data & signaling — low-speed comm circuits and control wiring
- Cross-connects — MDF/IDF punchdown blocks and patch fields
Key Features
- 25-pair Cat 3 — ideal for multi-line voice bundles and legacy communications
- 24 AWG solid copper — stable IDC terminations for 66/110 and patch panels
- CMP plenum rated — suitable for air-handling spaces per common building requirements
- Flame-retardant construction — low-smoke plenum jacket design
- UL listed — recognized safety and quality compliance
- Gray jacket — clean look and easy pathway identification
Connectors Wall Plates
| Category |
Detail |
| Cable Type |
25-pair communications cable (Cat 3) |
| Pairs |
25 pair |
| Conductor |
24 AWG solid copper |
| Jacket Rating |
CMP (plenum rated) |
| Jacket Color |
Gray |
| Compliance |
UL listed |
Why buy from Gruber
- Plenum-ready supply — CMP cable stocked for air-space compliant telecom installs.
- Punchdown-friendly — solid copper conductors for consistent IDC terminations.
- Clean identification — gray jacket keeps pathways organized and easy to trace.
