Design Engineering RFI Shield Split Sleeve 1/2" x 3ft

The DEI RFI Shield Split Sleeve is a tinned-copper, split-wire sheath that reduces radio-frequency and electromagnetic interference while protecting harnesses and sensors.

Engineers and technicians who need reliable interference suppression and durable wire protection will appreciate the DEI RFI Shield Split Sleeve. Built from ROHS-compliant tinned copper braid, this 1/2" diameter, 3-foot sleeve installs over existing wiring without disconnecting connectors and comes with a 17.5" grounding strap and Quick Fix silicone tape for sealed terminations. Its expandable, flexible construction is designed to tolerate automotive and industrial temperature exposure while helping preserve EFI communication and sensor signal integrity.

How does this sleeve reduce interference in ignition and high-voltage environments?

The copper braid creates a conductive barrier that attenuates emitted RF and EMI from high-voltage ignition components. By grounding the shield with the included strap, induced noise is routed away from sensitive circuits and chassis ground.

• Tinned copper braid provides conductive shielding against radiated noise.
• Split design allows retrofit without disconnecting connectors.
• Included grounding strap lets you tie the braid to chassis ground quickly.
• Quick Fix silicone tape secures and seals braid terminations to maintain shielding effectiveness.

Will this sleeve fit my wiring harness and how easy is installation?

The sleeve expands to accept common cable bundles while keeping a compact profile around single wires or small harnesses. Installation is simple: press the split braid around the wire, route the braid, and secure terminations with the supplied ground strap and silicone tape.

• 1/2" nominal diameter expands to fit many cable bundles and hoses.
• Split construction installs over in-place wiring—no rewiring required.
• 3-foot length covers long runs or multiple short segments; cut to length as needed.
• Flexible braid conforms to bends and tight engine bay routing points.

Is this product durable enough for automotive and industrial applications?

DEI designed the braid to endure typical engine-compartment conditions and industrial environments where heat, vibration, and abrasion are concerns. The tinned coating improves corrosion resistance, while the mechanical weave resists fraying and wear.

• Tinned copper resists oxidation for longer-term conductivity.
• Expandable weave tolerates flexing and vibration without splitting further.
• High-temperature rating suitable for proximity to exhaust and ignition sources.
• Reinforced edges and proper termination maintain shielding under stress.

What accessories are included and how do they improve performance?

The package contains a 17.5" grounding strap and DEI Quick Fix silicone tape to create a reliable, sealed termination and a positive ground connection. These accessories simplify completing the shield and preserving its electrical performance.

• 17.5" grounding strap for easy attachment to chassis or common ground points.
• Quick Fix silicone tape secures braid ends and prevents moisture intrusion.
• Sleeve can be trimmed and re-terminated with common hand tools for custom installations.
• Accessories reduce installation time and deliver consistent shielding results.

Who is this for: Technicians, mechanics, and system integrators working on EFI systems, performance vehicles, marine electronics, power-sports machines, and industrial controls who need a straightforward retrofit shielding solution. If you require improved signal reliability near ignition sources or want a quick, durable way to protect sensors, harnesses, and communication lines, the DEI RFI Shield Split Sleeve is a practical, install-friendly choice.