KEY FEATURES
The 040-373/C5J/S is a shielded CAT5E junction box engineered for secure, high-integrity cable splicing in demanding environments. With support for both 110 and Krone termination tools, plus compatibility with T568A and T568B wiring standards, this box delivers fast, interference-protected connections. Here’s why professionals rely on it:
- Dual Termination Compatibility: Accepts both 110 and Krone tools for maximum field flexibility.
- T568A & T568B Wiring: Color-coded IDC terminals simplify terminations to industry standards.
- Fully Shielded Housing: The integrated SPCC metal cover, with chromium plating, offers excellent EMI protection.
- Compact Form Factor: Space-efficient dimensions—2.47″ (L) x 1.37″ (W) x 0.94″ (H)—fit tight spaces.
- High-Impact ABS Enclosure: Flame-retardant UL 94V-0 material enhances safety and durability.
- Comprehensive Mounting Kit: Includes screws, adhesive tape, and cable ties for versatile installation.
- Reliable IDC Terminals: Tin-plated phosphor bronze contacts ensure long-term electrical integrity.
- UL Listed & Standards Compliant: Meets ISO/IEC 11801 and ANSI/TIA-568.2-E; UL listed for peace of mind.
APPLICATIONS
The 040-373/C5J/S shielded junction box is ideal for scenarios requiring protection from electromagnetic interference (EMI) and consistent performance. Best suited for:
- Industrial and Commercial Ethernet Installations
- Shielded Structured Cabling Systems
- Network Equipment Rooms
- High-Density Telecom Closets
- Low-Voltage Splice Repairs
RECOMMENDED TOOLS FOR 040-373/C5J/S CAT5E JUNCTION BOX
For a seamless setup, we recommend:
- 078-1025 – I-Punch Tool for quick terminations.
- 078-1028 – Spring-Loaded Punch Down Tool for high-volume installations.
- 078-1988K – I-Punch Down Tool for precise and efficient connections.
WHY CHOOSE THE 040-373/C5J/S CAT5E JUNCTION BOX?
When signal integrity and secure splicing are critical, this junction box offers a premium, professional-grade solution:
- EMI Protection: Fully shielded to guard against interference in electrically noisy environments.
- Versatile Termination: Works with standard 110 and Krone tools for fast, familiar setups.
- Strong Build Quality: Durable, fire-retardant housing and metal shielding for long-term reliability.
- Compact and Efficient: Small footprint makes it easy to integrate into any structured cabling layout.
- Certified Compliance: UL-listed and fully compliant with ISO and TIA standards.
WHAT’S NEXT?
After installing your 040-373/C5J/S Shielded Junction Box:
- Use Shielded Patch Cables – Maintain consistent EMI protection across your network.
- Label Terminations – For organized installations and easier troubleshooting.
- Expand with Shielded Panels – Enhance your cabling system with shielded patch panels and accessories.
For more options and to explore similar products, visit our Junction Boxes category.







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