Tunnel Lighting Control System Accessories
TLUM Tunnel luminance sensors provide analog measurement in Candelas per square meter (cd/m²) that target reflected light at each traffic direction’s entrance portal. Long distance signal transmission, up to 4,000 feet is accomplished through a 4-20mA current loop.
|Inside the TLUM in a NEMA 3R, 4 rated enclosure:
TLUM1 – NEMA3R
TLUM2 – NEMA4
(Pre-wired and tested to UL508A (CAN/CSA C22.2.0014-M91)
Note: The TU24 (480/277/208/120 to 24VAC 40VA Transformer) is only use for the TLUM2. The TU120 (480/277/208 to 120VAC 40VA Transformer) is only use for the TLUM1.