Bulk 25-Pair Communications Cable — Cat 3 • 24 AWG Solid Copper • CMR Riser • Blue or Gray
Tested to 16 MHz | UL Listed • CMR Riser Rated • Flame-Retardant Jacket
This bulk 25-pair Cat 3 riser cable is a dependable choice for voice and legacy data communications in commercial buildings. Built with solid 24 AWG copper conductors and a CMR riser-rated, flame-retardant jacket, it supports clean, consistent terminations for general telephone and low-speed data circuits. Rated for transmissions up to 16Â MHz and available in blue or gray.
Cable Applications
- Voice & data communications — PBX, key systems, and building telecom backbones
- Up to 16 MHz bandwidth — legacy data, signaling, and control circuits
- General telephone applications — cross-connects, 66/110 blocks, and MDF/IDF runs
Key Features
- 25-pair Cat 3 — ideal for multi-line voice and legacy data bundles
- Solid 24 AWG copper — stable terminations for punchdown blocks and IDC hardware
- CMR riser rated — suitable for vertical runs between floors
- Flame-retardant jacket — built for commercial building pathways
- Meets Cat 3 electrical requirements — designed for compliant performance
- Tested to 16 MHz — supports legacy bandwidth requirements
- UL listed — recognized safety/quality compliance
- Color options — available in blue or gray
Connectors Wall Plates
| Category |
Detail |
| Cable Type |
25-pair communications cable (Cat 3) |
| Pairs |
25 pair |
| Conductor |
24 AWG solid copper |
| Jacket Rating |
CMR (riser rated), flame-retardant |
| Bandwidth / Test |
Tested to 16Â MHz |
| Standards |
Meets Cat 3 electrical requirements |
| Compliance |
UL listed |
| Available Colors |
Blue or Gray |
Why buy from Gruber
- Telecom-ready inventory — stocked for multi-pair voice/data installs and service work.
- Clean punchdown performance — solid copper conductors for consistent IDC terminations.
- Commercial-rated cable — CMR riser jacket supports in-wall vertical pathways.
