Superior Essex 55-899-21 CAT3 Network Cable, 28X24 1161A CMR 75C MSTR
Special Order: typically 2–6 weeks
Ships directly from the manufacturer. This is an estimated lead time, not a guaranteed delivery date.
Availability can change and lead times may be longer. If your project has a deadline, check with us before ordering.
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Key Features
- Delivers consistent, low-interference connectivity for voice, legacy data and security systems thanks to shielded construction
- Preserves signal integrity with 24AWG tinned copper conductors and 100 Ohm nominal impedance for reliable monitoring and surveillance links
- Dual aluminum foil shield plus tinned drain wire minimizes EMI/RFI, improving performance in crowded cable pathways and near electrical equipment
- Riser (CMR) rating supports safe vertical runs between floors in commercial and multi-story installations
- Durable polyolefin insulation resists wear and preserves long-term network stability, reducing maintenance and downtime
Quick Specifications
- Product Model
- 55-899-21
- Brand Name
- Superior Essex
- Manufacturer Part Number
- 55-899-21
Explore the details
Product information
55-899-21
Overview
For reliable, low-noise connectivity in security, surveillance and legacy network applications, choose the Superior Essex 55-899-21 CAT3 Network Cable. This Category 3 network cable is engineered to deliver predictable signal performance with 24AWG tinned copper conductors and a 100 Ohm nominal impedance—critical for consistent voice and monitoring links. The dual aluminum foil shield and tinned copper drain wire provide robust protection against electromagnetic interference and radio-frequency noise, making it a strong choice for installations near power runs or electronic equipment.
Built with solid polyolefin insulation and a CMR riser rating, the cable supports vertical riser pathways in commercial buildings while resisting wear over time. Superior Essex's attention to materials and shielding helps reduce troubleshooting, improve uptime, and keep surveillance and security systems operating cleanly. Ideal for CCTV, access control, voice and legacy data wiring, this shielded CAT3 cable simplifies deployment in multi-story facilities. Order the 55-899-21 to secure dependable, low-interference connections for your next monitoring or security installation.
Features
- Delivers consistent, low-interference connectivity for voice, legacy data and security systems thanks to shielded construction
- Preserves signal integrity with 24AWG tinned copper conductors and 100 Ohm nominal impedance for reliable monitoring and surveillance links
- Dual aluminum foil shield plus tinned drain wire minimizes EMI/RFI, improving performance in crowded cable pathways and near electrical equipment
- Riser (CMR) rating supports safe vertical runs between floors in commercial and multi-story installations
- Durable polyolefin insulation resists wear and preserves long-term network stability, reducing maintenance and downtime
| General Information | |
|---|---|
| Brand Name | Superior Essex |
| Manufacturer Part Number | 55-899-21 |
| Technical Information | |
| Shielding | Yes |
| Cable Rating | Riser |
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Confirm the model, required accessories and delivery needs before ordering.
- SKU:
- 55-899-21
- Manufacturer part:
- 55-899-21
How do I confirm compatibility?
Check the specifications and manufacturer documents for your existing system. Send us your model numbers and project requirements if you need help selecting equipment or accessories.
Ask a product specialistWhen will this item ship?
Availability is shown above. Special-order items and project quantities may need additional lead time. Contact us to confirm a delivery date before scheduling installation.
Shipping, freight and delivery detailsWhat should I know about returns?
Returns require an approved RMA. Consult the linked return policy for deadlines and eligibility. For standard non-defective returns, eligible factory-sealed items carry a 15% restocking fee and customer-paid return shipping; open-box and used items are refused. Defective and DOA claims follow the policy's separate terms. Special orders and other exclusions are final sale.
Read return eligibility and exclusionsSuperior Essex 55-899-21 CAT3 Network Cable, 28X24 1161A CMR 75C MSTR
55-899-21