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. 881-2832
Mfr. Part No.XVUC21B
£25.44
Each
Units
Harmony Harmony XVU Termination DC - - - - - 24 V ac/dc - 77mm - 60mm
RS Stock No. 814-6823
Mfr. Part No.XVBZ02A
£22.07
Each
Units
- - Support Tube with Base - - - - - - - - - - -
RS Stock No. 293-9966
Mfr. Part No.XVBC35
£30.40
Each
Units
Harmony Harmony XVB Beacon AC - Steady Orange Incandescent, LED - 250 V - 63mm - 70mm
RS Stock No. 881-2860
Mfr. Part No.XVUZ02
£22.95
Each
Units
- Harmony XVU Support Tube and Base - - - - - - - - - - -
RS Stock No. 299-4424
Mfr. Part No.84320055
BrandWerma
£43.86
Each
Units
KombiSIGN 70 843 Beacon AC, DC - Steady Green LED - 24 V dc - 65.5mm - 70mm
RS Stock No. 609-0857
Mfr. Part No.XVBC081
£5.06
Each
Units
- Harmony XVB Cover - - - - - - - - - - -
RS Stock No. 511-7333
Mfr. Part No.84351055
BrandWerma
£73.08
Each
Units
KombiSIGN 70 843 Beacon AC, DC - Blinking Blue LED - 24 V dc - 65.5mm - 70mm
RS Stock No. 299-4402
Mfr. Part No.84310055
BrandWerma
£43.86
Each
Units
KombiSIGN 70 843 Beacon AC, DC - Steady Red LED - 24 V dc - 65.5mm - 70mm
RS Stock No. 314-7354
Mfr. Part No.97584090
BrandWerma
£9.50
Each
Units
- - Mounting Base - - - - - - - - - - -
RS Stock No. 436-2065
Mfr. Part No.XVBC2B6
£77.00
Each
Units
Harmony Harmony XVB Beacon AC, DC - Steady Blue LED Yes 24 V ac/dc - 63mm - 70mm
RS Stock No. 609-0841
Mfr. Part No.XVBC07
£38.00
Each
Units
Harmony Harmony XVB Base Unit - - Flashing Green, Orange, Red - - 120 → 230 V ac - 484mm - 70mm
RS Stock No. 455-3407
Mfr. Part No.64081000
BrandWerma
£18.71
Each
Units
KombiSIGN 71 640 Termination AC, DC - - - - - 24 V dc, 230 V ac - 26.5mm - 70mm
RS Stock No. 356-6159
Mfr. Part No.96000001
BrandWerma
£10.53
Each
Units
- - Tube Mounting Braket - - - - - - - - - - -
RS Stock No. 455-3306
Mfr. Part No.64420075
BrandWerma
£32.50
Each
Units
KombiSIGN 71 644 Beacon AC, DC - Steady Green LED - 24 V dc - 65mm - 70mm
RS Stock No. 455-3299
Mfr. Part No.64410075
BrandWerma
£32.50
Each
Units
KombiSIGN 71 644 Beacon AC, DC - Steady Red LED - 24 V dc - 65mm - 70mm
RS Stock No. 314-7348
Mfr. Part No.97584025
BrandWerma
£9.98
Each
Units
- - Support Tube - - - - - - - - - - -
RS Stock No. 198-6113
Mfr. Part No.HL-3155X
£98.85
Each
Units
- HL Battery - - - - - - 5.6 V - 140mm - -
RS Stock No. 299-4418
Mfr. Part No.84330055
BrandWerma
£43.86
Each
Units
KombiSIGN 70 843 Beacon AC, DC - Steady Orange LED - 24 V dc - 65.5mm - 70mm
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. 314-7297
Mfr. Part No.84412655
BrandWerma
£71.43
Each
Units
KombiSIGN 70 844 Siren Element AC, DC - - - - - 24 V dc - 72mm 100dB 70mm