Introducing ITL’s New Data Centre Current Transformer Range | ITL UK

Precision Current Transformers for Mission-Critical Power Infrastructure

With the global demand for cloud computing, AI, colocation services, and hyperscale data centres continuing to accelerate, so too does the need for highly reliable electrical infrastructure. At Instrument Transformers Limited (ITL), we are proud to announce the launch of our dedicated range of Current Transformers (CTs) designed specifically for data centres and hyperscale facilities.

Built in the UK and engineered for accuracy, reliability and long-term performance, our latest CT range has been developed to meet the increasing demands of modern mission-critical environments where power quality, energy monitoring and system resilience are paramount.

Designed for the World's Most Demanding Electrical Environments

Data centres operate around the clock, where even a momentary interruption can have significant operational and financial consequences. Every component within the electrical distribution network must perform flawlessly.

Our new range of current transformers has been developed for applications including:

Main LV switchboards
UPS systems
Generator synchronisation
Power Distribution Units (PDUs)
Busbar monitoring
Intelligent Power Monitoring Systems

Whether supporting a regional enterprise data centre or a multi-megawatt hyperscale campus, ITL current transformers provide dependable performance where it matters most.

Engineered for Accuracy

Accurate measurement is essential for modern energy management and electrical protection.

ITL offers:

High accuracy classes for revenue metering and monitoring
Reliable protection performance
Stable operation over extended service life

This ensures that operators/owners receive accurate current measurements for monitoring energy consumption, identifying inefficiencies, and maintaining optimal system performance.

Built for Continuous Operation

Unlike many commercial facilities, data centres rarely experience downtime. Components are expected to operate continuously for decades.

Every ITL current transformer is manufactured using high-quality materials and rigorous quality control processes to provide:

Long operational life
Low maintenance requirements
Consistent measurement performance
Robust construction

Manufactured in our UK facility, each product undergoes comprehensive testing before shipment.

Supporting Modern Power Monitoring

Today's facilities rely on extensive electrical monitoring to maximise efficiency and maintain uptime.

ITL current transformers with a 1A, 5A or custom output can integrate seamlessly with:

Power & Energy Monitoring Systems
Smart Metering
Power Quality Analysers
SCADA Systems
Protection Relays

Our products help operators and system owners gain greater visibility into electrical performance, support predictive maintenance strategies, and reduce operational risk.

Flexible Solutions for Every Installation

No two electrical installation projects are identical.

Our dedicated data centre range includes options suitable for:

New switchgear manufacture
OEM panel builders
Retrofit/Extension installations
Power System upgrades
Renewable projects

Multiple window sizes, ratios, accuracy classes and mounting options are available, with bespoke solutions designed to customer specifications where required.

Manufactured in the UK Since 1973

For more than five decades, Instrument Transformers Limited has supplied current and voltage transformers to customers throughout the UK and internationally.

Our products are trusted across industries including:

Data Centres
Utilities
Renewable Energy
Marine
Rail
Industrial Manufacturing
Power Generation
Infrastructure Projects

Every transformer benefits from ITL's commitment to engineering excellence, responsive technical support and dependable delivery.

Supporting the Future of Digital Infrastructure

As investment in AI, cloud computing and hyperscale facilities continues to grow, the electrical infrastructure supporting these developments must evolve alongside it.

ITL's new Data Centre Current Transformer range has been developed to provide the accuracy, reliability and performance required by today's critical power systems—helping engineers design resilient, efficient and future-ready electrical networks.

Speak to Our Engineering Team

Whether you're designing a new hyperscale facility, manufacturing switchgear, upgrading an existing installation or specifying equipment for a mission-critical project, our engineers can help identify the ideal current transformer solution.

Contact Instrument Transformers Limited today to discuss your project requirements and discover how our UK-manufactured current transformers can support your next data centre development.

Customer Service Still Matters – And So Does Quality | ITL UK

In today's fast-paced business environment, it's easy to assume that outstanding customer service has become the exception rather than the rule. Too often, enquiries disappear into inboxes, responses take days, or customers are left chasing updates.

That's why receiving feedback like this means so much to our team:

"I have to say how impressed we are with the prompt and professional response. So often nowadays you reach out and hear nothing, but not only did you get back in record time but also had great news for us."

At Instrument Transformers Limited, we believe that responding quickly is only part of the equation. Our aim is to provide knowledgeable advice, clear communication, and practical solutions from the very first enquiry.

The same philosophy applies to every current transformer (CT) and voltage transformer (VT) we manufacture. We don't compete on the lowest price—we compete on quality, reliability, and long-term performance.

As our customer continued:

"Your products are manufactured to a high specification rather than bare-bottom pricing. It's handily apparent that it's certainly quality over quantity, which we not only admire but appreciate. It's simply impressive to see that the customer service matches component quality."

Those words perfectly reflect the values that have guided our business since 1973. Every transformer leaving our factory is designed and manufactured to exacting standards because we know our products are installed in critical power systems where performance and reliability cannot be compromised.

For us, quality extends beyond the product itself. It includes:

Prompt responses to technical and commercial enquiries.
Experienced engineering support when customers need advice.
Honest lead times and transparent communication.
Products manufactured to consistently high standards.
Long-term relationships built on trust and reliability.

We're incredibly grateful when customers take the time to share their experiences. Feedback like this reinforces our commitment to delivering not only high-quality current and voltage transformers, but also the level of service that customers deserve.

If you're looking for a manufacturing partner that values quality, technical expertise, and responsive customer support as much as you do, we'd be delighted to discuss your next project.

Quality products. Responsive service. Trusted partnerships

Current Transformers for AI Data Centres | ITL UK

As AI workloads continue to grow, so does the demand for reliable electrical infrastructure.

Artificial Intelligence (AI) is transforming industries worldwide, driving an unprecedented expansion in hyperscale data centres. These facilities require enormous amounts of electrical power, with many new developments demanding hundreds of megawatts of capacity. As power density increases, accurate current measurement, protection and monitoring are essential to keep AI infrastructure reliable.

Current transformers (CTs) are a critical component of this infrastructure, ensuring that electrical systems operate safely, efficiently, and reliably. From utility grid connections through to low-voltage distribution boards, CTs provide the data and protection needed to maintain continuous operation of mission-critical AI facilities.

Why AI Data Centres Place Greater Demands on Current Transformers

Unlike traditional enterprise data centres, AI facilities are characterised by:

Extremely high rack power densities
Large-scale GPU clusters
Rapidly fluctuating electrical loads.
Extensive redundancy through N+1 and 2N power architectures
Complex monitoring and energy management systems
Strict uptime requirements approaching 99.99%

These factors make the accuracy, reliability and durability of current transformers essential throughout the electrical distribution network that supports AI facilities.

Where Current Transformers Are Used

Current transformers perform several essential functions throughout a hyperscale facility, helping support the electrical performance that AI workloads demand.

Utility Incoming Supplies

CTs measure incoming current from the utility network, enabling accurate revenue metering, protection relay operation and power quality monitoring.

Medium Voltage Switchgear

Within medium-voltage switchgear, protection CTs support feeder protection, transformer differential protection and fault detection, helping safeguard valuable electrical assets.

Transformers and Substations

Instrument transformers provide vital current measurements for distribution transformers, generator transformers and on-site substations, helping ensure efficient operation and effective fault management.

Generator Systems

Standby generators are fundamental to maintaining uninterrupted operation during utility outages. Current transformers enable synchronisation, load sharing and generator protection during both normal and emergency operation.

UPS Systems

Modern UPS installations rely on accurate current measurement to optimise battery performance, monitor loading and support intelligent energy management strategies.

Low Voltage Distribution

Current transformers installed throughout low-voltage switchboards provide continuous monitoring of outgoing feeders, helping operators identify load imbalances, overload conditions and opportunities to improve energy efficiency.

Accuracy Matters

AI facilities often contain thousands of monitoring points that feed sophisticated Building Management Systems (BMS), Energy Management Systems (EMS) and Data Centre Infrastructure Management (DCIM) platforms.

Selecting the correct accuracy class is essential for:

Revenue and tenant billing
Energy efficiency reporting
Carbon reduction initiatives
Capacity planning
Load balancing
Predictive maintenance

Poor measurement accuracy can lead to incorrect energy data, inefficient asset utilisation and unnecessary operational costs, making the correct accuracy class essential.

Protection is Equally Critical

In addition to metering applications, protection current transformers also play an essential role in maintaining system resilience.

Protection CTs provide input signals for relays responsible for:

Overcurrent protection
Earth fault protection
Differential protection
Busbar protection
Generator protection
Transformer protection

Selecting the correct burden, knee-point voltage, accuracy class and saturation characteristics is fundamental to reliable protection system performance.

Engineering Considerations

Every hyperscale project presents unique engineering challenges. Factors influencing CT selection include primary current ratings, short-circuit withstand capability, accuracy class, instrument security factor, rated burden, environmental conditions, physical installation constraints and compliance with IEC 61869 and relevant project specifications.

Primary current ratings
Short-circuit withstand capability
Accuracy class
Instrument security factor
Rated burden
Environmental conditions
Physical installation constraints
Compliance with IEC 61869 and relevant project specifications

Many projects also require bespoke solutions to accommodate non-standard busbars, compact switchgear designs or specialised monitoring equipment.

Supporting Sustainable Data Centre Operations

Energy efficiency has become a key performance indicator for modern data centres, and AI facilities face increasing pressure to reduce Power Usage Effectiveness (PUE), optimise electrical efficiency and minimise carbon emissions.

High-quality current transformers enable detailed energy monitoring, allowing operators to identify inefficiencies, verify improvements and support sustainability reporting.

As data centres increasingly integrate renewable generation, battery energy storage systems (BESS) and microgrids, accurate current measurement becomes even more important for balancing power flows and maintaining system stability.

Why Choose ITL?

For over 50 years, Instrument Transformers Limited (ITL) has designed and manufactured high-quality current transformers for demanding electrical applications across utilities, industry and critical infrastructure.

Our engineering expertise enables us to support projects requiring:

Bespoke current transformer designs
Low-voltage and medium-voltage applications
Metering and protection CTs
High-current busbar solutions
Indoor and outdoor installations
Fast-turnaround prototypes
Technical support throughout the project lifecycle

Whether supporting new hyperscale developments or expanding existing facilities, our engineers work closely with customers to develop instrument transformer solutions tailored to their specific requirements.

Preparing for the Next Generation of AI Infrastructure

The rapid growth of AI is reshaping global electrical infrastructure, and the role of reliable instrument transformers will continue to grow as facilities become larger, more complex, and increasingly energy-intensive.

Choosing the right current transformer is not just about measuring current. It is about ensuring that protection systems operate correctly, that energy is monitored accurately, and that critical AI infrastructure remains available around the clock.

With decades of experience delivering bespoke instrument transformers, ITL is well-positioned to support consultants, EPC contractors, switchgear manufacturers, and data centre developers as they build the next generation of AI-powered infrastructure.

Speak to Our Engineers

Planning a hyperscale data centre or critical power project?

Our engineering team can help specify the most appropriate current transformer solution for your application, whether you require standard products or fully bespoke designs.

Contact ITL today to discuss your project requirements and discover how our instrument transformer expertise can support AI infrastructure.

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