Surface-mount emergency unit – RSAU vs. RSAUR
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At first glance, the Ready-Lite RSAU and RSAUR Series look remarkably similar—and for good reason. Both are architectural surface-mount emergency lighting solutions featuring a compact thermoplastic housing, four high-intensity LEDs, redundant LED connections and fixed light distribution designed to simplify installation and provide consistent emergency illumination.
The biggest difference is how the units receive their emergency power.
The RSAU Series is a self-contained emergency lighting unit with an integrated lithium battery and charger. It provides a minimum of 90 minutes of emergency lighting and can be specified with advanced diagnostics, self-testing and NexusPro Bluetooth monitoring options.
The RSAUR Series, meanwhile, is a remote emergency lighting unit designed for applications where emergency power is supplied externally. Multiple input configurations are available, including AC and DC options, as well as a high-power-factor 120–277VAC model compatible with central emergency systems.
Both provide the same basic lighting performance, including corridor and optional square area-of-rescue distributions, with spacing of up to approximately 24.4 m (80 ft) depending on mounting height.
In short: RSAU provides the emergency power within the fixture; RSAUR connects to an external emergency power source. Both deliver the clean architectural appearance, efficient LED performance and simplified installation that make the Ready-Lite platform well suited to commercial and institutional applications.
