Signal Tower Components

Signal tower components, often known as click-together beacon lamps, are used on different devices and machinery for drawing attention to warning messages and fault conditions by providing a signal / visual alarm.

How do signal towers work?

Signal tower components are used in a wide-range of applications to achieve multi-status signalling. They are commonly used by mounting together to make a tower of up to six modules high. These towers can be used as single indicators or used as sounder modules.

Different components of a signal tower

Every tower beacon consists of the following essential components:

Base units

The signal base unit is the bottom area of the signal tower. This part has a terminal block for installation, wiring, top cover and gasket in order to support the whole tower construction.

Light modules

Light modules come in different colours for different types of lamps or light modules, including LED, strobes, and incandescent lamps and send out a warning signal.

Audible Alarm Modules

Audible alarm modules are attached to the top area of a completed tower unit. These audible alarms act as a warning/ alert signal to users.


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Description Price Range Series Component Type Multifunction Current Type Light Effect Lens Colour Lamp Included Bulb Type Supply Voltage Minimum Decibel Maximum Decibel Height Base Diameter
RS Stock No. 436-2087
Mfr. Part No.XVBC2B7
HK$659.97
Each
units
Harmony Harmony XVB Beacon - AC, DC Steady Clear Yes LED 24 V ac/dc - - 63mm 70mm
RS Stock No. 609-0936
Mfr. Part No.XVBC8B5
HK$2,952.96
Each
units
Harmony Harmony XVB Beacon - AC, DC Flashing Orange Yes Xenon 24 V ac/dc - - 157mm 70mm
RS Stock No. 293-9893
Mfr. Part No.XVBC34
HK$267.33
Each
units
Harmony Harmony XVB Beacon - AC Steady Red - Incandescent, LED 250 V - - 63mm 70mm
RS Stock No. 436-2037
Mfr. Part No.XVBC2B3
HK$935.31
Each
units
Harmony Harmony XVB Beacon - AC, DC Steady Green Yes LED 24 V ac/dc - - 63mm 70mm
RS Stock No. 294-0348
Mfr. Part No.XVBC9B
HK$824.24
Each
units
Harmony Harmony XVB Buzzer Element - DC - - - - 24 V ac/dc 70dB 90dB 63mm 70mm
RS Stock No. 814-8649
Mfr. Part No.XVBC4B3
HK$1,428.68
Each
units
Harmony XVB Universal XVBC Indicator Bank - AC, DC Flashing Green - LED 24 V ac, 24 → 48 V dc - - 63mm 70mm
RS Stock No. 814-6823
Mfr. Part No.XVBZ02A
HK$279.78
Each
units
- - Support Tube with Base - - - - - - - - - - -
RS Stock No. 881-2797
Mfr. Part No.XVUC23
HK$375.74
Each
units
Harmony Harmony XVU Beacon - DC Steady Green Yes LED 24 V ac/dc - - 50mm 60mm
RS Stock No. 436-2043
Mfr. Part No.XVBC2B4
HK$1,541.55
Each
units
Harmony Harmony XVB Beacon - AC, DC Steady Red Yes LED 24 V ac/dc - - 63mm 70mm
RS Stock No. 293-9950
Mfr. Part No.XVBC33
HK$338.44
Each
units
Harmony Harmony XVB Beacon - AC Steady Green - Incandescent, LED 250 V - - 63mm 70mm
RS Stock No. 881-2791
Mfr. Part No.XVUC24
HK$375.74
Each
units
Harmony Harmony XVU Beacon - DC Steady Red Yes LED 24 V ac/dc - - 50mm 60mm
RS Stock No. 294-0001
Mfr. Part No.XVBC21
HK$393.41
Each
units
Harmony Harmony XVB Termination - - - - - Incandescent 24 V ac/dc, 120 → 230 V ac - - 63mm 70mm
RS Stock No. 294-0398
Mfr. Part No.XVBC020
HK$194.43
Each
units
- Harmony XVB Support Tube Cover - - - - - - - - - - -
RS Stock No. 881-2851
Mfr. Part No.XVUC020
HK$269.01
Each
units
Harmony Harmony XVU Body Extender - DC - - - - 24 V ac/dc - - 100mm 60mm
RS Stock No. 814-4943
Mfr. Part No.XVBC8G5
HK$2,952.96
Each
units
Harmony XVB Beacon - AC Strobe Orange Yes Xenon 120 V ac - - 157mm 70mm
RS Stock No. 436-2059
Mfr. Part No.XVBC2B5
HK$1,483.27
Each
units
Harmony Harmony XVB Beacon - AC, DC Steady Orange Yes LED 24 V ac/dc - - 63mm 70mm
RS Stock No. 294-0382
Mfr. Part No.XVBC4B4
HK$1,325.98
Each
units
Harmony Harmony XVB Beacon - AC, DC Flashing Red - Incandescent, LED 24 V ac/dc - - 63mm 70mm
RS Stock No. 294-0376
Mfr. Part No.XVBC4B5
HK$1,349.07
Each
units
Harmony Harmony XVB Beacon - AC, DC Flashing Orange - Incandescent, LED 24 V ac/dc - - 63mm 70mm
RS Stock No. 881-2832
Mfr. Part No.XVUC21B
HK$275.70
Each
units
Harmony Harmony XVU Termination - DC - - - - 24 V ac/dc - - 77mm 60mm
RS Stock No. 881-2810
Mfr. Part No.XVUC29
HK$841.07
Each
units
Harmony Harmony XVU Beacon Yes DC Blinking, Flashing, Rotating, Steady Blue, Green, Orange, Red, White, Yellow Yes LED 24 V ac/dc - - 50mm 60mm