Trellidor trellidor trojan iii t3000 certified to bre lps 1175 rated lpcb level 3 steel security grilles retractable

Trellidor Trojan III T3000 Security Grille (SR3)

The Trellidor Trojan III T3000 is globally recognised as one of the strongest sliding security grilles ever manufactured. Independently certified to the formidable BRE Standard LPS 1175: Issue 7 SR3 (LPCB Level 3), it represents the highest security rating achieved by a retractable sliding grille in the world. Designed specifically to protect critical national infrastructure, high-risk commercial premises, and sensitive public facilities, the Trojan III T3000 provides uncompromised defence against sustained, deliberate physical assaults while maintaining essential airflow, light, and visibility.

Unrivalled LPCB Level 3 (SR3) Protection

Meeting the strict demands of the UK's highest security sectors, the Trojan III T3000's SR3 rating guarantees the grille can successfully resist determined, prolonged attacks from heavy-duty tools.

Tested Against Extreme Assault

To achieve this prestigious Secured by Design status, the grille underwent rigorous independent attack testing in the UK. It is proven to withstand deliberate physical assaults using an arsenal of heavy tools, including bolt cutters, axes, cold chisels, and scissor jacks. This makes it an essential physical barrier for locations facing extreme security threats or strict insurance requirements.

Advanced Keyless Emergency Escape (EMESC)

Despite its impenetrable attack face, the Trojan III T3000 features a state-of-the-art EMESC (Emergency Escape) locking system. This unique keyless mechanism allows the grille to be unlocked quickly and effortlessly from the inside during a crisis. It has been specifically engineered to be operated under panic conditions by a person in the 75th percentile (below average strength), ensuring safe, rapid crowd evacuation without compromising external security.

Structural Engineering & Design

The Trellidor Trojan III T3000 defies the expectation that a heavy-duty, 50kg/m² security barrier must be an intrusive steel monstrosity. It is expertly engineered to be aesthetically neat, stacking seamlessly to the side when opened, and is powder-coated for a premium, smooth finish.

Unlimited Spans & Custom Configurations

Utilising multi-sash and dual-channel technology, the Trojan III is uniquely certified to a maximum height of 3630mm with a virtually unlimited width. The system is available in single door, double door, side-by-side, and flexi-sash configurations, allowing it to secure extraordinarily wide concourses and expansive retail fronts.

Ideal Applications for the T3000

Because of its elite LPCB Level 3 certification and rapid-escape technology, this retractable grille is the ultimate security solution for the most sensitive and high-traffic environments, including:

• Critical Infrastructure: Overland and underground railway stations, transport hubs, and facilities at high risk of terrorist threats.
• Government & Defence: International embassies, consulates, government buildings, and arms storage facilities.
• High-Value Retail: Luxury retail outlets, banks, and expansive shopping centres requiring after-hours zoning.
• Public Venues: Sports stadia, museums, and arenas requiring robust crowd control and fail-safe emergency exits.

How Does the T3000 Compare to Other Trellidor Models?

While Trellidor manufactures its entire range in an LPCB-audited facility to exceptional quality standards, the level of independent LPS 1175 certification varies across the product line based on the intended application and required threat resistance.

• Trellidor T700: The standard top-of-the-range sliding security barrier. While robust, galvanised, and featuring a patented multi-point locking system, it is designed for standard residential and commercial use and does not hold a specific LPCB LPS 1175 security rating.
• Trellidor Plus T900: The entry-level certified model, officially tested and rated to LPCB Level 1 (SR1).
• Trellidor Trojan II T1000: The mid-tier commercial model, independently certified to LPCB Level 2 (SR2).
• Trellidor Trojan III T3000: The ultimate high-security barrier. It holds the formidable LPCB Level 3 (SR3) rating, making it one of the highest-rated sliding security grilles available anywhere in the world.

If your premises requires a heavy-duty physical barrier but your insurers do not explicitly mandate an SR3 certified grille, the Trellidor Trojan II T1000 (SR2) or the non-certified Trellidor T700 may be a more cost-effective solution for your structural requirements.

The Trellidor Trojan III T3000 is an elite LPCB Level 3 (SR3) certified retractable security grille. Originally developed specifically for the international market, this product was engineered to address the modern threats of terrorism, bomb scares, and violent crowds in public spaces. It is strictly designed for locations that require the absolute highest level of physical attack resistance combined with rapid, fail-safe evacuation capabilities.

Public Sector & Critical Infrastructure

Because the T3000 is certified to withstand prolonged assaults with heavy-duty tools, it is the premier choice for protecting critical national infrastructure and sensitive public assets.

• Transport Hubs: Extensively utilised in overland train stations, underground rail networks, airports, and major sea ports. The system effectively prevents unauthorised access to sensitive platforms and operational zones out-of-hours.
• Government & Defence: The go-to physical barrier for securing international embassies, consulates, municipal government buildings, and secure arms storage facilities against deliberate, coordinated attacks.

Commercial, Retail & Leisure Sectors

The grille achieves a heavy-duty 50kg/m² structural density without sacrificing aesthetics. Its smooth, powder-coated finish and ability to stack compactly make it highly suitable for luxury and high-traffic commercial environments.

• Expansive Retail Environments: Ideal for luxury high-street boutiques, high-value electronics retailers, and expansive shopping centres that require robust after-hours zoning across extra-wide concourses.
• Sports Stadia & Arenas: Perfect for crowd-loading scenarios. The unique keyless Emergency Escape (EMESC) locking system is explicitly designed for easy operation by a person of below-average strength (75th percentile) during the panic of a crisis, ensuring rapid stadium evacuation.
• Museums & Heritage Sites: Protects priceless public assets and exhibitions from professional theft while allowing natural light and ventilation to circulate freely throughout the building.

Bespoke Engineering Capabilities

The Trojan III T3000 is not restricted to standard doorway dimensions. Through advanced multi-sash and dual-channel technology, the system is uniquely certified to secure massive architectural spans.

• Unlimited Widths: The grille is LPCB certified to a maximum height of 3630mm with a virtually unlimited width, making it the only viable SR3 sliding barrier for massive retail fronts and wide transport terminals.
• Configuration Options: It can be specified in single door, double door, side-by-side, and flexi-sash configurations to perfectly match the operational flow of any commercial or public building.

Technical Specifications: Trellidor Trojan III T3000

The Trellidor Trojan III T3000 is an immensely strong, heavy-duty retractable security grille. Despite its formidable 50kg/m² weight, it is finely engineered to stack neatly to the side when opened, offering a smooth, premium powder-coated finish. Below are the verified structural dimensions and certification details that establish it as one of the highest-rated sliding grilles in the world.

Certifications & Security Ratings

• Security Rating: LPCB LPS 1175: Issue 7 - SR3 (Level 3).
• Global Standing: This SR3 certification represents the highest independent attack rating successfully achieved by a retractable sliding security grille globally.
• Testing Protocol: Independently attack-tested by BRE Global Ltd (London) using a severe arsenal of Category C and heavy-duty tools, including bolt cutters, axes, cold chisels, and scissor jacks.

Materials & Structural Engineering

• Structural Density: Heavy-duty steel construction weighing 50kg/m², engineered to resist prolonged, deliberate physical assaults.
• Corrosion Resistance: Fully galvanised and pre-treated steel framework, finished with a smooth, UV-resistant polyester powder coating to ensure longevity in both inland and coastal environments.
• Dual-Channel Technology: Operates on advanced dual-channel tracking to support the heavy-duty flights, ensuring smooth and reliable deployment despite the immense weight of the steel.

Locking Mechanism (EMESC)

• Keyless Emergency Escape (EMESC): Features a state-of-the-art internal emergency escape system. The unique locking mechanism allows the grille to be unlocked quickly from the inside without a key during a crisis.
• Crowd Control Design: The EMESC system is specifically engineered to be operated under panic conditions by a person of below-average strength (in the 75th percentile), ensuring fail-safe stadium and transport hub evacuations.
• Attack Face Defence: The exterior locking face is heavily shrouded by steel protector plates to defend against drilling, picking, and blunt-force trauma.

Dimensions & Bespoke Configurations

Thanks to its multi-sash capabilities, the Trojan III T3000 can be scaled to secure massive architectural openings that traditional single-span doors cannot accommodate.

Installation Requirements

• Approved Substrates: Must be securely anchored into solid, heavy-duty substrates such as reinforced concrete, solid brickwork, or structural steelwork.
• Fixings: Requires high-tensile heavy-duty steel bolt fixings (minimum M8 Tensile Grade 12.9) to maintain the LPCB Level 3 certification.

Installation Overview: Trellidor Trojan III T3000

Because the Trellidor Trojan III T3000 is an LPCB Level 3 (SR3) certified security grille, the installation process is strictly regulated. To maintain its Secured by Design status and ensure it can withstand extreme, sustained physical attacks, the grille must be professionally integrated into the building's structural architecture exactly to the manufacturer's certified specifications.

Mandatory Substrate Requirements

An SR3 grille is exceptionally heavy (up to 50kg/m²) and faces extreme attack testing during certification. Therefore, it cannot be fixed to standard plasterboard, timber facades, or lightweight decorative cladding. The structural reveal must be prepared to accommodate high-tensile fixings into one of the following approved solid substrates:

• High-density reinforced concrete
• Solid brickwork
• Heavy-duty structural steelwork

The Installation Process

1. Heavy-Duty Structural Anchoring

The T3000 operates as a fully framed system. During installation, the frame is anchored securely on all four sides into the solid substrate. To meet the stringent LPS 1175 Level 3 standards, the installation team must use heavily reinforced, high-tensile steel bolt fixings (minimum M8 Tensile Grade 12.9). This ensures the framework cannot be levered, jacked, or ripped out of the wall during a prolonged attack.

2. Dual-Channel Top Track Mounting

To safely carry the immense weight of the steel flights while ensuring the grille can still glide effortlessly, the T3000 utilises advanced dual-channel top tracking. This heavy-duty galvanised steel track is securely bolted to the structural lintel above and is heavily shrouded on the attack face to prevent intruders from tampering with the internal roller bearings.

3. Groundwork for the Recessed Bottom Channel

To ensure a completely trip-free threshold—which is critical for public arenas, transport hubs, and stadiums—groundwork is required during installation. A trench must be cut into the floor so the heavy-duty galvanised bottom U-channel can be recessed flush with the Finished Floor Level (FFL). This channel securely houses the solid steel sill guides and prevents the bottom of the grille from being compromised.

4. Precision Alignment of the EMESC System

The final, crucial step is the precision alignment of the internal Keyless Emergency Escape (EMESC) locking system and the heavy-duty lock stiles. The installer must ensure that the heavily armoured exterior protector plates and anti-drill discs perfectly align with the locking jambs. This guarantees that the 4-point deadlock secures the building against attack while allowing the internal EMESC knob to operate smoothly during a panic evacuation.

Bespoke Structural Integration

For high-value retail stores and architectural projects, the T3000 can be installed with concealed storage in mind. The building contractor can prepare structural wall cavities or lockable steel recesses into which the grille can be pushed and completely hidden from public view during regular trading hours.

The Trellidor Trojan III T3000 is an elite LPCB Level 3 (SR3) certified security grille, engineered for the most demanding commercial and public environments. Because it is designed to protect critical infrastructure, the T3000 is manufactured under stringent ISO 9001 quality controls and is backed by a robust manufacturer's warranty covering structural integrity, materials, and locking components.

Standard Warranty Terms

Due to the heavy-duty 50kg/m² galvanised steel construction and the advanced pre-treatment process applied before powder coating, the T3000 is guaranteed to withstand both rigorous daily commercial use and harsh environmental conditions.

Maintaining Your Warranty & SR3 Rating

To ensure your LPCB Level 3 certification and manufacturer warranty remain fully valid, you must adhere to the following strict conditions and maintenance regimes:

• Professional Installation Only: The T3000 must be installed by trained and certified Trellidor technicians. The warranty is void if the grille is fitted by uncertified contractors or if non-approved, sub-standard fixings are used instead of the required M8 Tensile Grade 12.9 heavy-duty bolts.
• No Unauthorised Modifications: The SR3 rating and the warranty will be immediately voided if any part of the grille, including the EMESC locking system or the heavy-duty flights, is cut, drilled, welded, or altered post-installation.
• Track Maintenance: The recessed, trip-free floor track must be kept completely clear of dirt, stones, and debris. Failure to regularly sweep or vacuum the 25mm track can damage the enclosed steel bearings and invalidate the mechanical warranty.
• Cleaning the Framework: The powder-coated steel should be washed periodically with a non-abrasive, mild soap solution. In coastal or highly polluted industrial areas, this cleaning should be performed more frequently to prevent surface degradation.
• Lock Lubrication: The external Winkhaus cylinder and internal EMESC mechanism must be kept free of dust. Only dry, graphite-based lubricants should be used. Never apply wet or oil-based lubricants, as they attract grit and cause the lock to fail.

Warranty Exclusions

The Trellidor warranty guarantees the product against manufacturing and material defects under normal, intended commercial use. It does not cover:

• Damage resulting from deliberate physical attacks, forced entry attempts, or vehicle impacts.
• Operational failure caused by structural building subsidence or shifting.
• Corrosion or mechanical failure caused by neglect, improper maintenance, or the use of harsh chemical solvents.

For complete warranty registration, please ensure you contact the Samson Doors commercial support team as soon as your T3000 installation is commissioned.

As the Trellidor Trojan III T3000 is an extremely heavy-duty (50kg/m²), LPCB Level 3 (SR3) certified security grille, precision measurement is non-negotiable. The system requires secure, high-tensile anchoring into solid structural substrates on all four sides. Supplying accurate measurements ensures that the grille can be installed correctly, maintaining its official Secured by Design rating and ensuring the heavy-duty flights glide smoothly.

Step 1: Identify and Verify the Substrate

Before taking a tape measure to the opening, you must verify the structural integrity of the reveal. The T3000 cannot be anchored to plasterboard, timber cladding, or decorative facades. You must measure back to the solid structural material capable of holding heavy-duty M8 Tensile Grade 12.9 steel bolts. Approved materials include:

• Reinforced concrete
• Solid brickwork
• Heavy-duty structural steelwork

Step 2: Measuring the Structural Width

Because structural openings are rarely perfectly square, you must take three independent width measurements across the solid reveal.

1. Measure the width exactly at the top lintel of the opening.
2. Measure the width precisely across the middle of the opening.
3. Measure the width at the bottom, exactly at the Finished Floor Level (FFL).

Critical Rule: Always record the smallest of the three width measurements. This is your tightest structural width.

Step 3: Measuring the Structural Height

Similarly, the height must be measured in three different locations to account for any gradient in the floor or sagging in the upper lintel.

1. Measure the height down the far left-hand side of the opening.
2. Measure the height straight down the centre.
3. Measure the height down the far right-hand side.

Critical Rule: Use the shortest of the three height measurements. This is your tightest structural height.

Step 4: Applying Installation Tolerances (Reveal Fix)

When installing a fully framed grille between the structural opening (a reveal fix), you cannot order the grille to the exact tightest dimensions. You must allow a manufacturing and installation tolerance so the heavy-duty steel frame can physically slide into the opening without binding against the substrate.

• Width Deduction: Take your tightest width measurement and deduct at least 10mm (5mm per side) to get your final ordering width.
• Height Deduction: Take your tightest height measurement and deduct at least 10mm (5mm top and bottom) to get your final ordering height.
• Note: This tolerance gap allows the installation team to pack, perfectly level, and square the heavy-duty frame before securing the M8 anchor bolts. Any remaining gaps will be appropriately sealed post-installation.

Step 5: Factoring in the Recessed Floor Track

The T3000 features a trip-free bottom channel that must be recessed beneath the floor surface. When measuring the height, ensure you are measuring from the top structural lintel all the way down to the Finished Floor Level (FFL). During installation, the contractor will need to cut a trench into the floor to neatly house the heavy-duty galvanised U-channel.

Step 6: Stacking Space & Unlimited Spans

Because the Trojan III is manufactured from heavy-duty steel, the stacked flights take up physical space within the opening when the grille is pushed back.

• Clear Walk-Through Space: If maximising clear egress space is critical for daily operations, measure for a slightly wider aperture. Alternatively, plan with your builder to create structural wall cavities where the stacked grille can be hidden out of sight.
• Multi-Sash Configurations: The T3000 is uniquely certified for unlimited widths. If you are measuring an expansive retail front or transport concourse, provide the total span measurement. Our team will specify the correct multi-sash or side-by-side configuration required to secure the space while maintaining the SR3 rating.

Expert Assistance Available: Given the heavy-duty nature of this LPCB Level 3 product, our Samson Doors technical team is on hand to review your measurements, discuss custom structural footprints, and specify the correct grille configuration for your project.