Command Access ETH8W4545 630 CH-BB91 8-Wire Power Transfer Hinge, BB91 Style, 4-1/2"x4-1/2", Satin Stainless Steel

Keep low-voltage wiring neat, secure and code-compliant with the Command Access Technologies Energy Transfer Hinge (ETH) — a purpose-built door hinge for reliable power transfer to electronic locks and access control devices. This 8-wire, BB91-style power transfer hinge routes power through the hinge leaf to feed electric mortise and cylindrical locks, door-mounted card readers, exit trims and latch pullback devices without exposed cables. The 4-1/2" x 4-1/2" satin stainless steel construction provides corrosion resistance and professional aesthetics for commercial buildings, while the included 4' lead and non-conductive wire access cap simplify installation and reduce labor time. Designed for security and surveillance installations, the ETH8W4545 minimizes downtime and wiring errors so monitoring and access systems perform reliably. Ideal for retrofit and new-construction projects where clean low-voltage wiring and durable hardware are required. Specify the Command Access ETH power transfer hinge to streamline your next access control or security door installation—order now for fast deployment.

• Concealed low-voltage routing that eliminates exposed wires and maintains a professional door appearance
• 8-wire, BB91-style design simplifies power distribution to electric locks, readers and exit devices
• Durable 4-1/2" x 4-1/2" satin stainless steel hinge resists corrosion in high-traffic commercial environments
• 4' pre-attached lead and non-conductive wire access cap speed installation and reduce on-site labor
• Reliable, long-term performance backed by a 3-year limited warranty for mission-critical security systems