Bulletin 855D 30 mm Compact Control Tower™ Stack Lights

Specifications

Mechanical Ratings
Shock and Vibration		Based on the weight and style of mounting; tower lights are subject to damage from shock and vibration. Listed below are reference guidelines for maximum acceptable conditions.
		1 Module Stack	3 Module Stack	5 Module Stack
Standard Bases	Surface Mount Base or 10/25 cm Aluminum Pole Base	150 G Shock 2.5 G Vibration	45 G Shock 2.5 G Vibration	35 G Shock 2.0 G Vibration
Environmental Ratings
Ingress Ratings	Light Modules	IP65/UL Type 4/4X/13
	Sound Modules	IP65/UL Type 4/4X/13
	Surface, Pole, Vertical, Tube Mount Bases	IP65/UL Type 4/4X/13
Temperature Ratings — All Products	Operating Temperature	-25…+50 °C (-13…+122 °F)
	Storage Temperature	-25…+85 °C (-13…+185 °F)
Materials
Bases, Caps, Lens Covers, Sound Module Housings		Polycarbonate
Rubber Seals and Gaskets		Nitrile Rubber
Pole (for aluminum pole assembly)		Aluminum
Pole Base Footing (for aluminum pole base)		Polycarbonate
Insulation Sleeve (for pole insulation)		PVC
Mounting Screw Washers		Polyamide

Performance Ratings
Estimated Light Output‡	Steady, Flashing, Red	1000 mcd
	Steady, Flashing, Amber	800 mcd
	Steady, Flashing, Green	1500 mcd
	Steady, Flashing, Yellow	700 mcd
	Steady, Flashing, Blue	250 mcd
	Steady, Flashing, White	1000 mcd
Operating Voltage
Description		24V AC/DC	120V AC	240V AC
Light Modules		24V AC/DC (± 10%)	110V AC 50 Hz (± 10%) 120V AC 60 Hz (± 10%)	230V AC 50 Hz (± 10%) 240V AC 60 Hz (± 10%)
Sound Modules
Lamp Life Ratings (Design Life) Average Life Under Static, No Vibration, Conditions
Description		24V AC/DC	120V AC	240V AC
LED Modules		100 000 hrs
Sound Modules		20 000 hrs

‡ Light Output values are calculated from the LED datasheet and show typical values of luminous density. These values are not exact because the knurling in the lens affects the light distribution and because the viewing angle of the LED which directly relates to the Cd output value, is not identical for all LEDs.

Current Consumption
Description		24V AC/DC	120V AC	240V AC
Light Modules	Steady or Flashing LED	20 mA	22 mA	21 mA
Piezo Style Sound Modules	Single and Dual Circuit	40 mA	22 mA	21 mA
Flashing Frequency (Light Only Modules)
Flashing LED Modules		Flashing frequency approximately 2 Hz
dB Rating (Sound Modules)
All dB(A) ratings determined at a distance of 1 meter from sound module
Piezo Sound Module		85 dB(A) (+2 dB/-5 dB)
Leakage Current Impact
All light and sound modules are capable of absorbing up to 3 mA of leakage current from solid-state outputs without module activation.