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 Current Type Multifunction Light Effect Lens Colour Bulb Type Lamp Included Supply Voltage Minimum Decibel Height Maximum Decibel Base Diameter
RS Stock No. 881-2791
Mfr. Part No.XVUC24
£31.23
Each
Units
Harmony Harmony XVU Beacon DC - Steady Red LED Yes 24 V ac/dc - 50mm - 60mm
RS Stock No. 455-3176
Mfr. Part No.64110000
BrandWerma
£14.25
Each
Units
KombiSIGN 71 641 Beacon AC, DC - Steady Red - - 12 → 230 V ac/dc - 65mm - 70mm
RS Stock No. 881-2858
Mfr. Part No.XVUZ06
£33.00
Each
Units
- Harmony XVU Swivel Mounting Support - - - - - - - - - - -
RS Stock No. 356-6165
Mfr. Part No.96000002
BrandWerma
£10.53
Each
Units
- - Surface Mounting Braket - - - - - - - - - - -
RS Stock No. 881-2867
Mfr. Part No.XVUZ05
£63.26
Each
Units
- Harmony XVU Adjustable Tube and Base - - - - - - - - - - -
RS Stock No. 314-7089
Mfr. Part No.84010000
BrandWerma
£19.87
Each
Units
KombiSIGN 70 840 Beacon AC, DC - Steady Red - - 12 → 230 V ac/dc - 65.5mm - 70mm
RS Stock No. 455-3312
Mfr. Part No.64430075
BrandWerma
£32.50
Each
Units
KombiSIGN 71 644 Beacon AC, DC - Steady Yellow LED - 24 V dc - 65mm - 70mm
RS Stock No. 328-0293
Mfr. Part No.84500000
BrandWerma
£27.06
Each
Units
KombiSIGN 50 845 Termination AC, DC - - - - - 12 → 230 V ac/dc - 16mm - 52mm
RS Stock No. 455-3413
Mfr. Part No.64080000
BrandWerma
£18.71
Each
Units
KombiSIGN 71 640 Termination AC, DC - - - - - 24 V dc, 230 V ac - 26.5mm - 70mm
RS Stock No. 881-2797
Mfr. Part No.XVUC23
£30.27
Each
Units
Harmony Harmony XVU Beacon DC - Steady Green LED Yes 24 V ac/dc - 50mm - 60mm
RS Stock No. 814-8649
Mfr. Part No.XVBC4B3
£89.00
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. 881-2823
Mfr. Part No.XVUC9S
£51.00
Each
Units
Harmony Harmony XVU Buzzer DC - - - - - 24 V ac/dc - 58mm - 60mm
RS Stock No. 455-3356
Mfr. Part No.64580075
BrandWerma
£34.22
Each
Units
KombiSIGN 71 645 Buzzer Element AC, DC - - - - - 24 V dc - 72mm 85dB 70mm
RS Stock No. 881-2801
Mfr. Part No.XVUC25
£30.27
Each
Units
Harmony Harmony XVU Beacon DC - Steady Orange LED Yes 24 V ac/dc - 50mm - 60mm
RS Stock No. 294-0023
Mfr. Part No.XVBC5B5
£158.00
Each
Units
Harmony Harmony XVB Beacon AC, DC - Flashing Orange LED Yes 24 V ac/dc - 63mm - 70mm
RS Stock No. 481-935
Mfr. Part No.64083000
BrandWerma
£18.71
Each
Units
KombiSIGN 71 640 Termination - - - - - - 230 V ac, 24 V dc - 26.5mm - 70mm
RS Stock No. 436-2093
Mfr. Part No.XVBC2B8
£57.00
Each
Units
Harmony Harmony XVB Beacon AC, DC - Steady Yellow LED Yes 24 V ac/dc - 63mm - 70mm
RS Stock No. 436-2087
Mfr. Part No.XVBC2B7
£79.00
Each
Units
Harmony Harmony XVB Beacon AC, DC - Steady Clear LED Yes 24 V ac/dc - 63mm - 70mm
RS Stock No. 314-7102
Mfr. Part No.84020000
BrandWerma
£19.87
Each
Units
KombiSIGN 70 840 Beacon AC, DC - Steady Green - - 12 → 230 V ac/dc - 65.5mm - 70mm
RS Stock No. 124-9170
Mfr. Part No.LCE-302FB-RYG
BrandPatlite
£147.00
Each
Units
- LCE LED Signal Tower AC, DC Yes Flashing Amber, Green, Red LED Yes 24 V ac/dc - 229mm 85dB 40mm