Key Specifications

Type: Stacklight acoustic module (40 mm diameter)

Tone Options: Continuous or pulsed, adjustable via internal DIP switches

Sound Pressure Level: 80 dB at 24 Vac/Vdc

Voltage Rating: 24 V AC/DC with a maximum operational current of 39 mA

IP Rating: IP66, dust-tight and water-resistant, suitable for indoor and outdoor environments

Enclosure: UL Type 4, 4X, 13; made from polycarbonate with a black cap

Operating Temperature: -30°C to +60°C (-22°F to 140°F)

Mounting: Designed to be placed at the top of SL4 stacklight poles with rapid bayonet fitting for easy installation and wiring

Dimensions & Weight: Approximately 3 in height, 2.5 in width and depth, weight 43 g (0.1 lb)

Certifications and Compliance

The SL4-AP24 meets several international standards for safety and industrial use:

CE marked

CSA Certified, UL 508, cULus Listed

IEC rated for electrical and environmental compliance

Applications

The SL4-AP24 is intended for use in industrial automation and process control systems, particularly where audible signals are needed to alert operators of machine status changes, malfunctions, or safety conditions. 

It is widely used in factories, production lines, and automated machinery setups where stacklight signal towers provide combined visual and audible notifications