Power Systems Engineered for Reliability. Built in Britain.
DEWEN® designs and manufactures industrial UPS, DC power, and conversion systems that keep critical operations running — across telecom networks, data centres, water and wastewater plants, and rail infrastructure.
Our Purpose
Founded on British engineering excellence, DEWEN provides bespoke, high-reliability power systems for industries where uptime is non-negotiable.
From concept to commissioning, we combine technical precision with customer collaboration to deliver solutions that outperform standard commercial systems.
We don’t just supply UPS units — we engineer resilience.
What We Deliver
DEWEN’s portfolio covers every aspect of industrial power protection:
- UPS Systems – Single-phase, three-phase, modular and rack-mounted for indoor or outdoor use.
- DC Power Systems & Rectifiers – Scalable 12-220 V DC platforms for telecom, IT, and infrastructure networks.
- Inverters & Converters – High-efficiency AC/DC conversion and hybrid energy integration.
- Outdoor Enclosures & Cabinets – IP54/IP65-rated, climate-controlled power cabinets for harsh environments.
- Monitoring & Diagnostics – IoT-ready control and communication interfaces for predictive maintenance.
Each solution is configurable for voltage, redundancy, battery chemistry, and runtime, ensuring total alignment with site requirements.
Industry Sectors We Serve
DEWEN provides sector-specific power solutions that comply with the highest technical standards.
Telecommunications
Powering Connectivity — from Edge to Core.
DEWEN’s DC and UPS systems support telecom towers, remote shelters, and network hubs.
Hot-swappable rectifiers, inverters, and outdoor-ready hybrid systems deliver efficient, resilient power for 5G, LTE, and edge computing applications.
Data Centres
Uninterrupted Data. Uncompromised Power.
Modular UPS architectures designed for enterprise, colocation, and hyperscale data centres.
High efficiency, low TCO, and flexible scalability ensure uninterrupted operation for mission-critical IT infrastructure.
Water & Wastewater (WWWTP)
Engineered for the Elements.
WIMES 3.07 compliant, IP54-rated UPS systems built for corrosive and outdoor environments.
DEWEN’s BlueShield™ and IntelliHybrid™ series protect pumps, SCADA, dosing systems, and control rooms against power disturbance and hydrogen sulphide corrosion.
Railway Infrastructure
Reliability on Every Line.
EN 50155 and EN 45545 certified UPS and DC power systems supporting signalling, telecom, and station power networks.
Designed for vibration resistance, extended temperature range, and long service life in challenging transport environments.
Additional Markets
Beyond our core sectors, DEWEN’s engineering expertise extends to industrial, infrastructure, healthcare, and marine power applications — wherever reliability is paramount.
Why DEWEN
Engineered for the Long Run.
Our systems are designed not just to meet specification — but to perform for decades.
Key Differentiators:
- Customised Engineering: Tailored designs for load profile, environment, and redundancy.
- Full Lifecycle Support: Application study, FAT/SAT, operator training, and preventive maintenance.
- In-House Validation: Environmental, electrical, and EMC testing in controlled conditions.
- Global Standards: CE, BS EN 62040, IP54/IP65, WIMES 3.07, EN 50155, EN 45545 compliance.
- Agile Production: Modular assembly and fast turnaround without compromising quality.
Standards & Quality Assurance
DEWEN products are designed, tested, and certified under leading international standards:
- UPS Systems: BS EN 62040-1/2/3
- DC Systems: IEC 62368, ETSI EN 300 132-2
- Ingress Protection: BS EN 60529 (IP54–IP65)
- Sector Standards: WIMES 3.07, EN 50155, EN 45545
- Quality Systems: ISO 9001, ISO 14001, ISO 45001
Each system is factory-tested and documented for traceability and performance assurance.
Sustainability & Lifecycle Thinking
DEWEN is committed to designing energy-efficient, maintainable, and environmentally responsible systems.
We focus on:
- High-efficiency topologies and eco-modes to reduce losses.
- Modular upgrades that extend service life.
- Recyclable materials and waste-minimised manufacturing.
- Remote monitoring to prevent unnecessary site travel and emissions.
Work With Us
We collaborate with consultants, EPC contractors, and end-users to deliver power resilience at every scale.