Machine Safety
How to select the right signal tower for your machine or production line
Learn how to select the right signal tower based on environment, visibility, sound, technology and
Signal towers
Optical signalling using signal towers
Signal towers are used to clearly indicate the status of machines and installations. They provide operators and maintenance personnel with immediate visual information about operating, fault or hazard situations. Combining different light colours and signal modes creates a clear and safe working environment.
In industrial production and process control, signal towers are indispensable for fast and unambiguous communication between man and machine. They help prevent downtime, increase safety and support compliance with directives such as the Machinery Directive 2006/42/EC.
The modular design makes it possible to combine optical and acoustic signals, so that messages are clearly visible even in noisy or poorly lit environments. In this way, signal towers contribute to reliable process monitoring and a safe industrial working environment.
Intense BR 50 bright signal tower with
5 modules
The Pfannenberg LED signal tower provides powerful, bright and flexible signalling for industrial applications. Thanks to advanced multi-colour LED technology, a single unit can display multiple machine or process statuses.
The modules are available in Crystal Clear or Full Colour versions and support different signal modes: continuous, flashing or strobe light. Up to five modules can be combined, including LED, Xenon or acoustic modules, for a fully configurable solution in the field of machine safety and status indication.
The robust housing with IP66 and IK08 protection guarantees reliable operation, both indoors and outdoors. Thanks to the optional M12 connector and multi-voltage power supply, installation is quick and universally applicable. A Fieldbus or AS-interface module is available for integration into automation systems.
- Multi-colour
- Adjustable brightness
- Can be used between -25℃ and +55℃
- Complies with EAC standards
- 10-year warranty
Pfannenberg
Questions on signal towers?
Our sales enigeers would love to help you choose the correct signalling technology for your solution
G-LED
Signal tower with 3 or 7 LED lamps in
multiple colours and a buzzer
The G-LED signal towers provide clear and reliable visual signalling for industrial applications. Thanks to multi-colour LED technology, multiple machine or process statuses can be displayed in a single unit.
The series is available in versions with 3 or 7-colour LED lighting, allowing different statuses to be easily distinguished. The robust aluminium housing, combined with an impact-resistant PC lens, guarantees a long service life and reliable operation, even in demanding industrial environments. The integrated buzzer of at least 95 dB(A) provides additional acoustic attention value, ensuring that warnings are clearly heard even in noisy environments. The G-LED signal towers are available in two heights (160 mm or 260 mm) and with a silver-coloured or black-coated aluminium housing. Depending on the version, the lamp is equipped with an open cable end or an M12 5-pin connector.
The G-LED signal towers combine robustness, high visibility and flexible configuration, making them ideal for use in machine construction, process automation and other industrial applications where reliable signalling is essential.
- Available with 3 or 7 colours of LED lighting
- Built-in buzzer ≥95 dB (A)
SMD5050 LED chip for high light intensity - Protection rating: IP50
- Mounting base with 3 mounting holes
- Height: 160 mm or 260 mm
- LED lifetime: 50,000 hours
- Connection: open cable end or M12 5-pin connector
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