Protect Series - Innovation meets robustness
The Protect series marks a significant advancement in signaling technology. Standing for Pfannenberg Range of Toughness & Excellent Coverage Technology, Protect represents a new standard of robustness, thanks to its practically unbreakable die-cast aluminium housing.
Designed to withstand the toughest industrial and outdoor conditions, the devices are tailored to meet the diverse needs to a wide range of industries and applications, including fire alarm,
marine, machine safety, functional safety, Ex/ATEX, and functional safety in explosive areas.
The Protect series includes a single sounder as well as a sounder/light combination with six different lens colours. The combined devices are optionally available with Xenon or LED* light. Versatile and adaptable, the devices are certified according to different industrial standards to fit individual needs.
The advantages of all devices at a glance:
- Excellent robustness – Cast aluminium housing guarantees long lasting use in tough applications
- Selectable tone – 80 different tones, 3 additional tones externally selectable
- Pre- & main alarm – Preventing shock reactions by pre-alarming due to reduced sound pressure level
- Safe & easy handling – Designed with unlosable seal and screws to significantly shorten wiring and installation times
- High safety standard – Fullfills the ISO7731 requirements
- Outstanding perceptibility – Ideal radiation characteristics and high penetration of acoustical obstacles reduce the required number of devices
- Reduceable sound pressure level – Reduction of sound pressure level up to 30 dB, internally or externally selectable
- Two-sense alarming – Barrier-free and safe signaling due to 2 technologies (combined devices - audible/visual)
- Multi-voltage-power supply – Made to connect with different voltages, no need to stock various units
Industries and recommended devices
Fire Alarm
Recommended device: PRO 10 (EN 54-3)
The PRO 10 sounder is available as an EN 54-3 certified version and is therefore ideal for the use in industrial fire alarm.
Machine safety
Recommended device: PRO 10 | PRO X 10 | PRO L 10
The PRO 10 sounder and the PRO X 10 / PRO L 10 sounder/light combination are excellent for use in the field of machine safety. The combined device is optionally available with Xenon or LED light.
Marine
Recommended device: PRO 10 (MED/MER)* | PRO L 10 (MED/MER)*
The PRO 10 sounder as well as the PRO L 10 sounder/light combination are available as MED/MER certified versions and can therefore be used in the marine industry.
Functional safety
Recommended device: PRO 10 SIL
The PRO 10 SIL sounder is certified for SIL 2/PL d and is used in applications where safety is crucial. The device fulfills functional safety requirements by integrated safety design and diagnosis channel.
Ex/ATEX
Recommended device: PRO 10 3G/3D | PRO L 10 3G/3D
The sounder PRO 10 3G/3D as well as the sounder/light combination PRO L 10 3G/3D are explosion proof. They are made for use in potentially explosive areas in zone 2 (3G) and zone 22 (3D).
Functional safety in Ex-areas
Recommended device: PRO 10 3G/3D SIL
The PRO 10 3G/3D SIL sounder is not only certified for SIL 2/PL d and fulfilling functional safety requirements by integrated safety design and diagnosis channel, but also explosion proof and suitable for use in potentially explosive areas in zone 2 (3G) and zone 22 (3D).
* Available by end of 2025
Videos about the Protect series
What’s Inside
This video offers an inside look at the technology and components that make our signal devices exceptionally robust and reliable.
Watch the video
Unboxing the PRO 10
See the contents of the PRO 10 package and get a first impression of the product in this unboxing video.
Watch the video
Flyer for download
Protect Series – Innovation Meets Robustness
This flyer provides a comprehensive overview of our signal devices developed for use in harsh environments, including key features, technical data, and application examples.
Download the flyer (PDF)
