Electrical Safety
Reimagined
Protecting people and infrastructure from dangerous PEN conductor faults in commercial, industrial and residential EV installations.
What is O-PEN®?
O-PEN® is matt-e's patented technology that detects and isolates dangerous broken PEN (Protective Earth Neutral) conductor faults: a hidden hazard that standard MCBs and RCDs simply cannot protect against.
In TN-C-S (PME) earthing systems, a broken PEN conductor can cause dangerous voltages to appear on all metallic surfaces, putting lives at risk. O-PEN® establishes a zero-point reference from the three-phase supply, detecting these faults and disconnecting within 5 seconds.
Protection for Every Installation
From large commercial sites to individual home EV chargers, matt-e has a compliant, reliable solution.
Guardian
Award WinnerSite-wide real-time electrical monitoring using O-PEN® technology. Detects loss of neutral, broken PEN and voltage anomalies, with remote monitoring via cloud portal.
- Real-time monitoring
- SMS & email alerts
- Remote load isolation
- Three variants: GES, GPC, GPC-A
Commercial EV
Three-phase O-PEN® connection centres for commercial EV charging infrastructure. Supports units up to 1250A, with no earthworks or scanning required.
- Three-phase PME protection
- Up to 1250A support
- Direct PME connection
- Manual & auto reset variants
Domestic EV
Single-phase units for home EV charging. A simple connection point for one 32A charge point, with unique monitoring that disconnects all poles during a fault.
- Single-phase 32A connection
- Type A RCBO variants
- Minimal civil works
- Compliant TN-C-S connection
British Made
Designed and manufactured in the UK, in Tamworth, Staffordshire.
Patented Tech
O-PEN® is a patented, proven technology trusted by CPOs nationwide.
Rapid Response
Disconnects dangerous faults within 5 seconds, automatically.
Standards Compliant
Fully compliant with BS 7671:2018 Amendment 2 and IET:01 standards.
Expert Support
Dedicated technical team available Mon–Fri, 9am–5pm for installation guidance.
Eco-Friendly
No ground electrodes means less civil disruption and reduced environmental impact.
Safety Without Compromise
Since 2013, matt-e has been at the forefront of electrical safety innovation. Founded by engineers who identified critical safety gaps in EV infrastructure, we've spent over a decade perfecting solutions that protect lives.
Trusted by major Charge Point Operators and installers across the UK, our products eliminate the complexity and cost of traditional earthing solutions while delivering superior, certified protection.
Our StoryReady to protect your installation?
Talk to our technical team to find the right solution for your site, whether it's a single home charger or a large commercial fleet.