Welcome to NSSE, your trusted backup power solutions partner.

Drawing on 34 years of experience in power protection, we are regarded as the UK’s foremost UPS specialists, supporting critical infrastructure with emergency power solutions manufactured by globally trusted brands. We provide industry-leading support and maintenance services to ensure complete peace of mind. When your mains utility fails, we’ll keep everything operating smoothly. Call us today on 0333 222 4000.

Everything UPS Maintenance Support Services

End-to-end emergency power solutions.

Across business, healthcare, education, and government sectors, we deliver complete backup power solutions. From design, supply and installation, to proactive maintenance, our UPS systems and generators keep your critical operations protected, resilient, and always online.

Specialist UPS Maintenance Services

Comprehensive scheduled maintenance agreements with 24/7/365 cover and emergency call outs, or one-off servicing.

UPS Battery Replacement Services

Next day delivery for batteries for small UPS systems and comprehensive replacement services for larger UPS systems.

Industrial Standby Generators

Off the shelf and built to specification standby generators from 10kVA - to 200kVA from partners including Shenton Group, SDMO, Kohler and Vital…

About Us

We are the UK's foremost UPS specialists. Since 1992, our clients have trusted us to provide reliable backup power services, ensuring continuity of operations and peace of mind.

History

With over 3 decades of experience, we have established ourselves as leaders in delivering specialised power protection solutions. Our story so far...

Why Choose NSSE

Our technical team offers unbiased, expert guidance and access to top-tier products, leveraging their extensive knowledge and experience to deliver…

Sectors

Our clients span the length and breadth of the UK and into Continental Europe. These are just a few sectors of industry we operate in nationally.

34 years specialising in power protection.

538 UPS systems supported and serviced each year.

3,385 UPS and generator installations since 1992.

Uninterruptible Power Supply Products

Uninterruptible Power Supplies (UPS), Maintenance Bypass Switches, PDUs and Cables.

UPS Products - Uninterruptible Power Supply for Data Centre

Uninterruptible Power Supply Systems

UPS systems from 500VA to 6.4mVA - solutions for all applications.

UPS Products - External Maintenance Bypass Switch

UPS Maintenance Bypass Switches (MBS / EMBS)

UPS External Maintenance Bypass Switches. Single and 3 phase, single and dual input.

PDUs: Power Distribution Units

Horizontally and vertically mounted basic, intelligent, managed, switching and monitored PDUs.

External Battery Modules

Increase UPS autonomy (runtime) with a dedicated External Battery Module, designed specifically for your model of Uninterruptible Power Supply.

UPS Management

A small selection of the most common UPS management cards and sensors, essential for enhancing communication and monitoring capabilities in power…

UPS Power Cables

IEC, IEC Lock, UK 3 Pin, Commando power cables for all your UPS, PDU & IT requirements.

Insights

Stay informed with the latest industry news, insights and advice from the team at NSSE

Eaton 93T UPS

The Eaton 93T UPS maximises the true available power whilst requiring 20% smaller space than other UPS in its class. With the optional internal…

NSSE

Jul 8, 2024

Is your UPS smart enough?

With intelligent and efficient network power protection, from entry level to scalable runtimes, the Smart-UPS range of Uninterruptible Power Supplies…

NSSE

May 16, 2024

Can your UPS take the heat?

The summer weather presents a number of challenges to UPS Systems, including:

NSSE

Apr 29, 2024