SL3-120-RFAFGF by Danaher

The SL3-120-RFAFGF tower light is produced by Danaher within the Timers and Controllers series. This device is a three-color signal module used on assembly lines, conveyor islands, and other automated stations to communicate machine status at a glance. By combining stacked incandescent lamps with a compact housing, it provides a straightforward visual interface that supplements audible alarms and controller messages. Its design supports quick recognition and direct wiring for retrofit projects or new control panels.

The cylindrical enclosure measures 3.5 in in diameter and is molded from a polymer material with a black top cap that shields the internal wiring. Inside, 3 lamps sit behind stacked lenses arranged in red, amber, and green, matching conventional stop, warning, and operating indications. Illumination is provided by BA9s incandescent bulbs rated at 6 W each. Every light section operates in flashing mode to attract attention when the connected machine changes status. A supply of 120 VAC is applied through preterminated wire leads that can be spliced directly into terminal strips. The tower light can operate at ambient temperatures up to 45 °C, while its lower operating temperature is -25 °C for cold-start conditions.

Mounting is accomplished through a tapped hub with 3/4 in NPT threads, allowing the signal tower to screw directly into a compatible conduit opening on a motor-control center or machine enclosure. The pigtail consists of copper conductors in an 18 in lead that exits through the base and provides enough length for routing to nearby terminals. Its insulation is approved for circuits of up to 300 V that may also supply contactor coils or auxiliary relays. The wire-lead connection eliminates the need for a plug-in base, reducing the installed height and providing direct access to the individual conductors. The molded body protects the lamp sockets and internal connections while keeping the stacked lenses visible from multiple directions. The tapped mounting hub also provides a stable mechanical connection when the tower is installed above a control cabinet or along a guarded production area.