What is TC-ER?
- TC (Tray Cable): This denotes cables designed specifically for installation in cable trays or ladder racks.
- ER (Exposed Run): This rating indicates that the certified cable can be installed directly on support systems without conduit protection, under specified conditions.
Key Characteristics of TC-ER Cables
- High Flame Resistance: They pass rigorous vertical tray flame tests, effectively inhibiting the spread of flame.
- Low Smoke Zero Halogen (LSZH): The cable materials produce low smoke and no corrosive halogen gases when exposed to fire, helping to protect sensitive equipment and ensure personnel safety.
- Good Mechanical Durability: They are typically designed to be resistant to abrasion and crushing, suitable for the physical demands of data center environments.
- Installation Efficiency: The “ER” rating simplifies installation by allowing direct placement.
Why UL 1277 TC-ER Cables are Essential for Data Centers
- Enhanced Safety Level: Their inherent flame-retardant and LSZH properties directly meet the high fire safety requirements of data centers.
- Optimized Deployment Efficiency: Eliminating conduit saves significant material and labor costs, shortening project timelines.
- Improved Infrastructure Management: A cleaner cable layout facilitates better airflow management within cabinets, enhancing cooling efficiency.
- Assured Long-Term Operation: Products conforming to stringent industrial standards offer greater quality and reliability assurance.
Considerations for Selecting Compliant Cables
- Verify Certification Marking: Compliant cables must be clearly and continuously marked on the jacket with “UL 1277 TC-ER”.
- Match Electrical Specifications: Select the appropriate cable type based on application requirements (e.g., voltage, current, shielding needs).
- Choose a Reliable Supplier: Partner with reputable manufacturers like JZDCable, who possess the necessary expertise and ensure source compliance.






