Belden 3094A ControlBus Quad-Shield RG-11 Coax Cable
Belden 3094A is a high-performance ControlBus™ RG-11 coaxial cable engineered for industrial automation networks, process control, and long-distance high-frequency signal transmission.
Product Description
The Belden 3094A is a premium, heavy-duty RG-11 coaxial cable designed specifically for ControlBus™ industrial automation networks, process control systems, and long-distance high-frequency signal routing. Engineered to withstand the electrical noise and physical demands of industrial plant floors, it combines a rugged center conductor with a high-grade foam dielectric and advanced quad-shielding architecture.
Key Technical Characteristics
1. Conductor Architecture
Conductor Type: 14 AWG solid Bare Copper Covered Steel (BCCS).
Mechanical & Electrical Advantage: The copper-clad steel core provides high tensile strength to handle long vertical or horizontal pulls without stretching. Due to the high-frequency skin effect, signal currents travel primarily along the outer copper layer, ensuring optimal electrical conductivity alongside robust mechanical durability.
2. Dielectric / Insulation
Material: Gas-Injected Foam Polyethylene (FPE).
Performance: The gas-injected foam structure offers a low dielectric constant and consistent physical density. This minimizes signal attenuation (loss) and maintains uniform 75-ohm characteristic impedance across long cable runs.
3. Quad-Shield System (Maximum Interference Immunity)
Designed for high EMI/RFI environments, the 3094A uses a four-layer shield setup:
Inner Tape: Duobond® II (Aluminum foil/polyester tape bonded to the dielectric).
Inner Braid: 60% Coverage Aluminum Braid for low-frequency EMI protection.
Outer Tape: Duofoil® (Aluminum/polyester/aluminum tape) for 100% high-frequency coverage.
Outer Braid: 40% Coverage Aluminum Braid for secondary shielding and extra mechanical integrity.
4. Outer Jacket & Safety Ratings
Jacket Material: Industrial-grade Polyvinyl Chloride (PVC).
Flame / Safety Rating: CMR (Riser Rated). Approved for installation in vertical shafts, floor-to-floor raceways, and indoor cable trays per NEC standards.
Key Technical Characteristics
1. Conductor Architecture
Conductor Type: 14 AWG solid Bare Copper Covered Steel (BCCS).
Mechanical & Electrical Advantage: The copper-clad steel core provides high tensile strength to handle long vertical or horizontal pulls without stretching. Due to the high-frequency skin effect, signal currents travel primarily along the outer copper layer, ensuring optimal electrical conductivity alongside robust mechanical durability.
2. Dielectric / Insulation
Material: Gas-Injected Foam Polyethylene (FPE).
Performance: The gas-injected foam structure offers a low dielectric constant and consistent physical density. This minimizes signal attenuation (loss) and maintains uniform 75-ohm characteristic impedance across long cable runs.
3. Quad-Shield System (Maximum Interference Immunity)
Designed for high EMI/RFI environments, the 3094A uses a four-layer shield setup:
Inner Tape: Duobond® II (Aluminum foil/polyester tape bonded to the dielectric).
Inner Braid: 60% Coverage Aluminum Braid for low-frequency EMI protection.
Outer Tape: Duofoil® (Aluminum/polyester/aluminum tape) for 100% high-frequency coverage.
Outer Braid: 40% Coverage Aluminum Braid for secondary shielding and extra mechanical integrity.
4. Outer Jacket & Safety Ratings
Jacket Material: Industrial-grade Polyvinyl Chloride (PVC).
Flame / Safety Rating: CMR (Riser Rated). Approved for installation in vertical shafts, floor-to-floor raceways, and indoor cable trays per NEC standards.
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