SCP S45-1550 — Cat5e Shielded Pass-Through RJ45 Modular Plug
The SCP S45-1550 is a Simply45® shielded internal ground pass-through RJ45 modular plug designed for use with shielded (STP) Cat5e LAN cables. Targeted at professional installers and network technicians, it is the go-to choice for structured cabling projects that require EMI shielding and grounding. The single-piece design eliminates the need for a load bar, speeding up termination. With a 3-prong, 50µ 24ct gold-plated pin design, it delivers superior signal integrity and electrical performance compared to standard 2-prong plugs. UL Listed, PoE/PoH rated, and UL94 V0 commercial rated, the S45-1550 ships in a convenient 50-piece reusable plastic jar and carries a lifetime limited warranty.
Superior 3-Prong Gold-Plated Pin Design
Where most pass-through RJ45 plugs use a 2-prong contact, the S45-1550 uses a 3-prong pin plated with 50µ of true 24ct gold. The extra contact point means three independent electrical connections are made to each wire conductor instead of two — improving electrical performance, signal integrity, and mechanical grip on the conductor. In practice this translates to more reliable terminations that hold up over years of cable movement and thermal cycling, reducing the likelihood of intermittent connectivity faults that are notoriously difficult to trace on an installed network.
Full Shielding with Internal Ground Pass-Through
The S45-1550 is fully shielded with an internal ground pass-through, meaning the cable's shield is carried continuously through the plug body to the equipment socket. This is essential in environments with elevated electromagnetic interference — server rooms, industrial floors, AV racks, or any installation running shielded STP cabling to meet ANSI/TIA 568.2-D or ISO/IEC 11801 Class D requirements. Without a properly grounded plug, even a perfectly installed shielded cable run loses its EMI protection at every termination point. The S45-1550 closes that gap, preserving the integrity of the shielding system end-to-end.
Improved NEXT Performance via Deep Wire Insertion
The internal geometry of the S45-1550 allows the cable's wire conductors to be inserted further into the plug body before crimping. This reduces the length of untwisted wire exposed inside the connector — a primary source of Near-End Crosstalk (NEXT) degradation. Shorter untwisted lengths mean the plug performs closer to the rated Class D channel specification, which matters most in dense patch-panel environments or wherever Cat5e runs are operating near their bandwidth ceiling. The straight-line wire insertion also simplifies the termination process, reducing the chance of mis-wiring during installation.
UL Listed & Commercial-Grade UL94 V0 Rated
The S45-1550 carries UL Listing — the only pass-through RJ45 modular plug line to do so according to the manufacturer — and is rated UL94 V0 (IEC 60695-11-10) for flame retardancy. UL94 V0 is the highest plastic flammability classification and is required for components used in plenum (CMP), riser (CMR), and CM cable environments, as well as LSZH cables up to B2ca. For installers specifying products for commercial buildings, data centres, or any project subject to fire code compliance, this rating removes a potential compliance question and supports sign-off by facilities managers and inspectors.
PoE/PoH Rated for High-Power Network Devices
The combination of full shielding, 3-prong gold pins, and high-quality materials gives the S45-1550 a low-resistance termination profile, making it suitable for Power over Ethernet (PoE) and Power over HDBaseT (PoH) applications. At high PoE power levels (IEEE 802.3bt Type 3/4, up to 90W), connector resistance directly contributes to heat generation — a poorly made plug can become a weak point that degrades power delivery or shortens cable life. The S45-1550's construction is designed to keep resistance — and therefore heat — low, making it a safe choice for deployments powering IP cameras, access points, digital signage players, and similar PoE-powered devices.
