Secured by Design

Sunray Doors (an ASSA ABLOY Group Company) offer a complete, aesthetically pleasing fully certified steel door security range. The doorsets are specially constructed to suit individual project requirements and based on a 45mm thick door leaf platform throughout.

Secured by Design

Sunray Doors (an ASSA ABLOY Group Company) offer a complete, aesthetically pleasing fully certified steel door security range. The doorsets are specially constructed to suit individual project requirements and based on a 45mm thick door leaf platform throughout.

Secured by Design

Sunray Doors (an ASSA ABLOY Group Company) offer a complete, aesthetically pleasing fully certified steel door security range. The doorsets are specially constructed to suit individual project requirements and based on a 45mm thick door leaf platform throughout.

The ExcluDoor® Security Door Range LPS 1175 SR1 – SR6

The ExcluDoor® range provides exceptional security to LPS 1175 Security Ratings 1 to 6 in a wide range of bespoke sizes. Fire ratings are available up to four hours duration in accordance with BS EN 1634-1. Vision panels & louvre vents can also be incorporated within either single or equal leaf double or unequal leaf double door configurations. A myriad of locking options is also available including single and multi-point high security locking systems, combined with access control.

Steel Louvre Systems

A unique interlocking, stackable louvre system that can be designed to suit a variety of structural openings including shaped or signature designs. Sunray stackable louvres are available in virtually any RAL colour and integrated with louvre or solid doors.

An image of an arrow back
An arrow to go forward
No items found.
The only approved supplier for Louvre Doors & Systems

Sunray are the only supplier accredited in the UKPN EAS 07-0000a database to provide louvre doors and systems to UK Power Networks (UKPN),

Trusted by over 11 DNOs & IDNOs

We are one of the few UK suppliers trusted by over 11 Distribution Network Operators (DNOs) and Independent Distribution Network Operators (IDNOs) to deliver compliant, high-security door solutions for critical infrastructure.

The leading, compliance-first supplier

Sunray are proud to be one of the few UK companies that hold ISO 9001, ISO 14001 and ISO 45001

The only approved supplier for Louvre Doors & Systems

Sunray are the only supplier accredited in the UKPN EAS 07-0000a database to provide louvre doors and systems to UK Power Networks (UKPN),

Trusted by over 11 DNOs & IDNOs

We are one of the few UK suppliers trusted by over 11 Distribution Network Operators (DNOs) and Independent Distribution Network Operators (IDNOs) to deliver compliant, high-security door solutions for critical infrastructure.

The leading, compliance-first supplier

Sunray are proud to be one of the few UK companies that hold ISO 9001, ISO 14001 and ISO 45001

SR1 ExcluDoor® 1

Certified by LPCB to LPS 1175 Issue 8 SR1 (A1)

View products
Arrow pointing up
SR1 ExcluDoor® 1 FR Fire Doors

Certified by LPCB to LPS 1175 Issue 8 SR1 (A1)

View products
Arrow pointing up
SR2 ExcluDoor® 2

Certified by LPCB to LPS 1175 Issue 8 SR2 (B3)

View products
Arrow pointing up
SR2 ExcluDoor® 2 FR Fire Doors

Certified by LPCB to LPS 1175 Issue 8 SR2 (B3)

View products
Arrow pointing up
SR3 ExcluDoor® 3

Certified by LPCB to LPS 1175 Issue 8 SR3 (C5)

View products
Arrow pointing up
SR3 ExcluDoor® 3 FR Fire Doors

View products
Arrow pointing up
SR4 ExcluDoor® 4

Steel security doors certified by LPCB to LPS 1175 Issue 7 Level 4

View products
Arrow pointing up
SR4 ExcluDoor® 4 FR Fire Doors

Certified by LPCB to LPS 1175 Issue 7 SR4 (D10)

View products
Arrow pointing up
SR5 ExcluDoor® 5

Certified by LPCB to LPS 1175 Issue 7 SR5

View products
Arrow pointing up
SR6 ExcluDoor® 6

Steel security doors certified by LPCB to LPS 1175 Issue 7 Level 6.

View products
Arrow pointing up
Stackable Louvres

Robust, durable and high-quality stackable louvres can be tailored to suit all architectural requirements.

View products
Arrow pointing up
Security Rated Louvre Doors – Levels 2-3 LPS 1175

Steel security louvre doors certified by LPCB to LPS 1175 Issue 7 Levels SR2 and SR3. A unique LPBC rated single and double leaf louvred doorset combining strength with excellent air flow characteristics.

View products
Arrow pointing up
UKPN Doors - Trusted Supplier with Exclusive Louvre Systems Accreditation

Sunray Engineering stands as a trusted supplier of UKPN doors and holds the exclusive distinction of being the only UK manufacturer accredited to provide louvre systems to UK Power Networks. Following our recent addition to the UKPN EAS 07-0000a database for security doors, we now offer comprehensive door solution coverage across UK Power Networks' extensive distribution network, from our industry-leading Excludoor security doors for primary substation and grid infrastructure applications to our exclusive louvre systems for specialised ventilation management.

This strategic expansion of our UKPN accreditation, combined with our comprehensive range of power network doors, establishes Sunray as the preferred single-source supplier for complete security solutions across England's largest electricity distribution network. Our deep understanding of UKPN's exacting specifications, reinforced by over 70 years of engineering excellence, ensures that every UK Power Network door and louvre system we manufacture meets the stringent security, durability, and compliance requirements essential for protecting critical electrical infrastructure.

The complexity of modern power network doors and louvre systems demands a supplier with intimate knowledge of UKPN's operational requirements and regulatory framework. Sunray's proven track record in delivering steel security doors, exemplified by our groundbreaking FireLock® range which achieves an exceptional 240-minute fire rating whilst maintaining full 34.2 kPa blast resistance capability, combined with our exclusive louvre systems accreditation, reflects our comprehensive ability to meet the technical specifications outlined in UKPN's equipment approval standards. This breakthrough achievement demonstrates how advanced engineering can deliver integrated protection solutions that address multiple simultaneous threats whilst maintaining operational integrity.

Our UKPN doors and exclusive louvre systems are engineered to address the specific challenges faced by electricity distribution networks, including electromagnetic compatibility, physical security threats, and environmental resilience. The rigorous assessment process that led to our inclusion in the EAS 07-0000a database validates our engineering excellence and reinforces our commitment to meeting the exacting technical specifications demanded by utility-grade security applications. Our exclusive louvre systems accreditation demonstrates UKPN's confidence in our ability to meet their most specialised ventilation and security requirements, whilst our FireLock® technology sets new benchmarks for critical infrastructure protection.

The trust placed in Sunray by UK Power Networks extends beyond product supply to encompass comprehensive project support, technical consultation, and ongoing compliance assurance. Our dedicated team works closely with UKPN project managers to ensure seamless integration of our power network doors and louvre systems into new installations and infrastructure upgrades. Our digital asset management system provides complete traceability and maintenance records throughout the product lifecycle, supporting the complex operational requirements of critical electrical infrastructure where extended protection windows and reliable performance are essential for national infrastructure resilience objectives.

As one of the select few suppliers trusted by over 11 DNOs and IDNOs across the UK, our expanded UKPN accreditation underscores our position as the compliance-first choice for network operators requiring absolute certainty in their security infrastructure investments, delivering proven solutions that exceed industry expectations whilst maintaining operational efficiency.

June 26, 2025

Sunray Engineering Expands UKPN Accreditation with Security Doors Database Addition

Sunray Engineering achieves strategic expansion of UKPN accreditation, adding security doors to complement exclusive louvre systems provision for comprehensive critical infrastructure protection

Find out more
Arrow pointing up
June 23, 2025

FireLock® Steel Doors Achieve Groundbreaking 240-Minute Fire Rating with Blast Protection

Sunray Engineering's FireLock® steel door range successfully passes rigorous EN 1634-1 fire testing whilst maintaining 34.2 kPa blast resistance, setting new benchmarks for critical infrastructure protection in utility and power generation facilities.

Find out more
Arrow pointing up
June 23, 2025

The Critical Importance of Supplier Accreditation for UKPN, DNO and IDNO Door Solutions

This article explores why proper supplier accreditation for UKPN, DNO and IDNO door solutions is non-negotiable, what risks arise when working with non-accredited suppliers, and how to verify that your chosen supplier genuinely meets the exacting standards required.

Find out more
Arrow pointing up
Enquire about the 
Secured by Design
 range

If you require any further technical information / support, click on the Product Data sheet above, or if you require a quotation, please complete the enquiry form or email sales at sales@sunraydoors.co.uk

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
No items found.
Trusted by
No items found.
Enquire Now