Systems Protection, a brand of Tenneco and a manufacturer of Bentley-Harris® products, develops protection solutions for cables, harnesses, hoses, and mechanical assemblies. ADDEV Materials distributes these products globally, with a strategic focus on sleeving. ROUNDIT®, used for the mechanical, thermal and electromagnetic protection of bundles.
The range meets the constraints of the Power & Mobility markets, with a strong focus on rail: in-cab cables, under-chassis cables, bogie cables, electrical cabinets, traction systems, and exposed wiring harnesses. ADDEV assists clients with product selection, availability, cutting, and packaging adapted to the application.
Systems Protection designs multi-material conduits, sleeves, tapes, and guards for wires, cables, hoses, and mechanical assemblies. The offering covers needs for abrasion, impact, thermal protection, EMI shielding, electrical insulation, acoustics, and harness management.
Historically originating from Bentley-Harris®, the brand was integrated with Federal-Mogul and then Tenneco. Systems Protection uses textile processes such as braiding, knitting, weaving, and non-wovens to adapt performance: mechanical strength, ease of installation, flexibility, fire/smoke resistance, and durability.
In railways, Systems Protection solutions are used to protect wiring harnesses in cabins, undercarriages, electrical cabinets, doors, bogies, and traction systems. Several ROUNDIT® products meet EN 45545-2 HL3 requirements according to the grades.
ROUNDIT® is a priority for ADDEV as this range addresses a recurring field need: to protect an existing harness without disassembly. Its self-wrapping construction simplifies retrofitting, reduces installation times and secures areas subject to abrasion, vibration, or fire/smoke constraints.
Wrappable installation without cable harness removal
EN 45545-2 HL3 versions for railway applications
Temperatures up to +260 °C depending on grade
EMI, fire, abrasion and high temperature options
ADDEV Materials distributes Systems Protection products globally, with a focus on the most in-demand ROUNDIT® references and complementary solutions for the rail, energy, automotive, data centre, and industrial sectors.
| Range | Technical function | Key features | Main applications |
|---|---|---|---|
| ROUNDIT® 2000 FR | Flame-retardant self-wrapping sleeving | -50 °C to +150 °C, EN 45545-2 R22/R23 HL3, flame retardant polyester | Railway bundles, doors, cabins, electrical cabinets |
| ROUNDIT® 2000 V0 | High-strength mechanical fire/smoke protection | UL 94 V0, low smoke, EN 45545-2 HL3 according to configuration | Under-chassis conduits, confined spaces, electrical systems |
| ROUNDIT® V0 EMI | Self-wrapping EMI shielding | -65 °C to +200 °C, nickel-plated copper + PPS, EMI and abrasion protection | Traction systems, power cables, electromagnetic environments |
| ROUNDIT® EMI DW / FMJ Plus | High-performance EMI shielding | Metal construction Cu/Ni, drain wire or high optical coverage versions | Sensitive beams, grounding, speed control systems |
| Expando® TCP-V0 | Stretchy tubular bandage | -50 °C to +150 °C, UL 94 V0, EN 45545-2 HL3 | Continuous lengths, non-derailment beams, railway maintenance |
| FyreJacket® / FyreJacket® HL | Fire and thermal protection | Fibreglass + silicone, up to +260 °C in service, fire resistance IEC 60331-1 according to grade | Bogies, sensitive flexibles, cables exposed to flames or splashes |
| Protexx-Shield® | Thermal and electrical barrier for battery | Thermal runaway protection, adhesive or multilayer composite versions | Battery cases, liners, modules, packs EV, thermal propagation." |
The exact references, diameters, colours, fastenings and lengths must be validated according to the usage environment, the fire/smoke specification and the mechanical stress level.
The selection of a ROUNDIT® conduit depends on four technical parameters: temperature, fire/smoke requirements, EMI needs, and installation method. This approach avoids oversizing and allows for the selection of the grade suited to the actual harness.
Systems Protection solutions address frequent field failures: cable abrasion, electromagnetic interference, local heating, fire/smoke constraints, and battery thermal propagation.
Systems Protection products shield harnesses, cables, and mechanical assemblies against abrasion, heat, electromagnetic interference, fire/smoke, and vibrations. Rail remains the priority use case for ADDEV Materials.
ADDEV Materials adapts Systems Protection products to industrial integration constraints: length, packaging, kitting, and preparation for on-site installation. The objective is to reduce assembly times and ensure repeatability in production or maintenance.
Cut to length
Kitting by application
Special packaging
ADDEV Materials distributes Systems Protection products worldwide and assists industrial clients in selecting the right part numbers for their site conditions. ADDEV's focus is on its ROUNDIT® sleeving for the rail industry, with the capability to also offer complementary solutions for fire, EMI, thermal, and battery applications.
Are you looking for a ROUNDIT® sleeving, EMI protection, thermal solution, or fire barrier for batteries? ADDEV Materials will analyse your specification to determine the correct reference, diameter, length, and delivery format.
Français Français 
English (UK)
Deutsch
Polski
العربية
