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The SDC - SECURITY DOOR CONTROLS BR64XL is a full wave bridged rectifier designed to convert alternating current (AC) to direct current (DC) in low-voltage access control and door hardware circuits. This component is used by licensed electricians and security hardware technicians who need stable DC output from an AC power source when driving electric strikes, magnetic locks, or similar electrified door hardware. It is a compact, single-unit component sold individually and categorized as a lock accessory within the access control trade.
The BR64XL is suited for installation in access control systems and electrified door hardware applications where AC-to-DC conversion is required at the device level. It is a common component in commercial and light industrial door security installations where the power supply delivers AC voltage but the locking device requires DC. Technicians often install this rectifier inline or within a power supply enclosure to condition power before it reaches the lock hardware.
Designed as an OEM-style replacement or supplemental component for use with electrified door hardware and access control lock accessories requiring AC-to-DC rectification.
Installation should be performed by a licensed electrician or qualified access control technician familiar with low-voltage wiring practices. De-energize the circuit and verify power is off before handling or replacing this component. Follow applicable NEC requirements for low-voltage control wiring when integrating this rectifier into an access control or door hardware power circuit. Observe correct polarity on the DC output side to avoid damage to downstream lock devices.
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