Simply45 S45-B004P — ProSeries snagless strain relief for shielded RJ45 plugs
The Simply45® S45-B004P is a ProSeries integrated snagless strain relief designed specifically for use with Simply45® external-ground shielded RJ45 modular plugs (S45-1150, S45-1155, S45-1750P, S45-1755P). Intended for network installers and structured cabling professionals working with large-diameter shielded LAN cables up to 8.5 mm (0.33"), it protects terminated plugs from mechanical stress, preserves correct bend radius, and extends the operational life of every link or channel. The clear tint works with any cable jacket colour, and the trimmable body adapts to tight installations. Backed by a Limited Lifetime Warranty and supplied in a wide-mouth, stand-up resealable bag of 100 pieces for efficient fieldwork.
Prolongs Termination Life Under Real-World Stress
Without a strain relief, every accidental tug or repeated plug-in/plug-out cycle puts mechanical stress directly on the RJ45 plug body. Over time this can loosen one or more of the eight pins inside the connector; a loose pin introduces resistance, resistance generates heat, and heat degrades signal integrity or damages the device port. The S45-B004P absorbs that stress by integrating firmly into the plug during the crimping cycle, so the cable bends against the boot — not the termination. For an end user this translates to fewer mysterious link drops, fewer re-terminations, and lower long-term support overhead on any installation where cables are regularly handled.
Correct Bend Radius Preserved for Maximum Channel Performance
Industry standards (ANSI/TIA 568, ISO/IEC 11801) specify minimum bend radii for structured cabling because tight bends increase crosstalk and reduce attenuation margins. The S45-B004P maintains the required bend geometry at the most vulnerable point of the link — right at the plug exit — ensuring that the channel continues to meet its rated Cat6a/10G performance throughout its service life. The boot is trimmable, so installers can shorten it to suit very tight patch-panel or switch-cabinet environments without sacrificing the protective function. This matters most in high-density rack builds where cables inevitably stack and press against each other.
Clear Tint — Universal Fit for Any Cable Colour Scheme
Many strain reliefs come in a fixed colour that clashes with or obscures colour-coded cable management schemes. The S45-B004P uses a clear polycarbonate tint so the cable jacket colour remains fully visible after installation. This keeps colour-coded port labelling and cable identification intact at patch panels and switches, which directly reduces the time technicians spend tracing connections during moves, adds, and changes. The material is rated UL94 V0 (IEC 60695-11-10), making it safe for use in plenum (CMP), riser (CMR), CM, and LSZH cable environments — a practical requirement for commercial and institutional projects.
