A N E M P L O Y E E O W N E D C O M P A N Y
Standby Power Solutions
PB Design has long been serving the rail and metro infrastructure within the UK with robust DC switch trippers for over 3 decades. Our PADS approved designs meet the needs of Network Rail. We also have extensive knowledge of London Underground installation, supporting the Jubilee line over 20 years ago for example.
Our thyristor based technology is a proven design with a product life often in excess of 20 years. We offer a range of application uses:
- Battery tripping unit – power assurance for safe operation, always there when required
- Telecoms – communication assurance for constant communication to the substation assets
- SCADA – status and control assurance for safe operation
Batteries do not last forever and we have experience in replacing batteries onsite, project managing the work to ensure minimal downtime and disruption.

Innovative and well-engineered products

Personal & responsive customer service

Continued maintanence and support
Applications for Rail & Transport

Rail
The DC battery tripping unit is a vital component in rail applications, ensuring the safety and efficiency of the electrical system. Our DC tripping units are PADS approved.

Metro
The DC system is the backbone of a high-voltage industrial/utility substation. Our industrial chargers maintain the health of the DC system by providing a steady charge to batteries, which serve as backup power sources. Given the critical nature of the system, redundancy can be provided with a dual charger configuration.

Road Infrastructure
Ensuring the safety of drivers, our DC switch tripper units and intertrippers provide the essential DC power allowing the substation to continue to operate even during power outages.

Airports
DC systems are the backbone of a substation, ensuring that essential electrical systems within the substation continue to operate even during power outages. PB Design have been providing UK airports with essential DC power.
Services
PB Design offer a range of pre and post sale services including design, installation, commissioning, maintenance and battery replacements.
Our Clients
From national requirements to individual needs, we have successfully completed many projects in a wide range of applications and environments.






Latest News & Resources

The Role of Stand-By Power in Surge Protection
What happens when a power surge leads to a complete power outage? Power surges, though brief, can cause complete power loss resulting in significant disruption, equipment damage, and financial losses. While surge protection helps shield against voltage spikes, a comprehensive Power Assurance strategy, including DC chargers and battery tripping units, is crucial. Learn how effective stand-by power solutions help businesses maintain critical operations.
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Power Surges Can be Silent Killers for Data-Heavy Industries
For industries dependent on continuous data processing, minor voltage fluctuations can cause protective systems to trigger, resulting in brief but impactful outages. Over time, these surges can degrade equipment and corrupt critical data. Learn the early warning signs and how implementing a strong power protection strategy can help safeguard your data operations.
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PB Design Celebrates Shortlisting in Multiple Categories at the Business Leader South West Awards
We are delighted to share that PB Design has been shortlisted for five categories in the prestigious Business Leader South West Awards.
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