SA 3 and SA 3L provide the installer with a regulated voltage to drive external annunciator lamps when installing new avionics and accessory equipment. Designed to provide up to 12 outputs, the installer can adjust both the maximum and minimum brightness to match the existing annunciators lamps. The SA 3 and SA 3L are single circuit card which can be installed in SANDIA Aerospace’s SRU-1 single card enclosure or in either the SRU-5 or the SRU-10 multi-card enclosures. They is certified to 55 thousand feet.

The SA 3 is used for incandescent annunciators.
SA 3L especially for LED annunciators.
The SA-3NVG provides a third level of display brightness for NVG applications.

SANDIA Aerospace maintains a complete inventory of Line Replaceable Units for immediate delivery should a replacement unit ever be required.

Operating Temp: -55° to +70°
Voltage: 28Vdc
.5 Amp Continuous, 1 Amp Short Term (for annunciator test)
Adjustable Voltage To Match Existing Annunciators Brightness for either incandescent or LED’s (SA 3L)
Multiple Output Pins Eliminates Splices In Wiring Harness
Tested to Meet or Exceed DO160D
Easily Field Serviceable – Worldwide
Backed By SANDIA Aerospace’s 3 Year Warranty