12 AWG 4C Shielded VFD Cable

"12/4 Shielded VFD Cable is a specialized, 600V TC-ER / 1000V Type Motor Supply rated solution engineered to bridge the gap between Variable Frequency Drives and industrial motors. While standard power cables often fail in demanding VFD environments, this heavy-duty cable utilizes dual-layer shielding (aluminum foil and tinned copper braid) along with moisture-resistant XLPE insulation to suppress EMI/RFI noise, handle high-voltage spikes, and protect motor longevity. Encased in a rugged, direct burial rated PVC jacket, it is built to withstand sunlight, oil, and chemicals in the harshest exposed environments."

Why Electricians & Engineers Choose 12/4 Shielded VFD Cable

The 12/4 VFD cable is a premium, heavy-duty solution designed to power modern AC motor drives. Standard THHN wire easily fails under high-frequency voltage spikes (reflected wave phenomenon) and bleeds electrical noise into nearby control circuits. This VFD cable is engineered with tinned copper conductors, dual-layer shielding (aluminum foil + 85% tinned copper braid), and cross-linked polyethylene (XLPE) insulation to handle voltage spikes, eliminate cross-talk, and protect expensive motors from bearing damage.

• Advanced EMI/RFI Shielding: Features a high-performance aluminum polyester foil shield plus an 85% tinned copper braid to trap and ground high-frequency noise.

• 4-Conductor Redundancy: The four-conductor design provides a dedicated ground path that is significantly more effective than three-conductor variants at reducing EMI in the event of system component failures.

• Exposed Run (TC-ER) Rated: Certified for direct-run installation from tray to motor without the high labor costs of installing rigid conduit (per UL 1277).

• Extreme Durability & Direct Burial: The heavy-duty PVC outer jacket is specifically engineered to resist sunlight, moisture, oil, abrasion, and chemicals, making it ideal for direct burial or wet industrial environments.

Technical Specifications: 12/4 Shielded VFD Cable

ENGINEERING OVERVIEW: 12 AWG 4C VFD Cable

• Application: Variable Frequency Drive motor connections, industrial automation, conveyors, pumps, and processing equipment.

• Voltage Rating: 600 Volts (UL Type TC-ER) / 1000 Volts (UL Flexible Motor Supply).

• UL Listings: UL 1277 (Type TC-ER), UL Type XHHW-2, UL Flexible Motor Supply.

• Conductor Material: Stranded soft drawn tinned copper (12 AWG, 65 strands).

• Ground / Drain Wire: Stranded soft drawn tinned copper (12 AWG).

• Insulation: Cross-linked Polyethylene (XLPE).

• Shielding: Aluminum polyester foil tape and 85% coverage tinned copper braid.

• Jacket Material: Premium PVC (Black, sunlight, moisture, oil, and abrasion resistant).

• Temperature Rating: -40°C to 90°C.

• Cable Outer Diameter: 0.48 inches (12.3 mm).

• Compliance Standards: CSA FT-4 vertical tray flame test; C(UL) CIC-TC per CSA C22.2 No. 239 & 230; Meets IEEE 1202/UL 1685 (70,000 BTU) & ICEA T-29-520 (210,000 BTU) flame tests; Class I Division II Hazardous Location suitable; RoHS II & REACH compliant.

Common 12/4 VFD Cable Applications

• Precision Conveyor Systems: Powering small industrial motors where suppressing EMI is vital to prevent interference with optical sensors and PLCs.

• Commercial HVAC Fans & Pumps: Ensuring clean power delivery for variable speed fans and precision pumping stations in commercial buildings.

• Automated Packaging Machinery: Ideal for the high-frequency switching requirements of robotics and automated sorting equipment.

• Food & Beverage Processing: Handling the motor leads in wash-down areas where moisture and chemical resistance are non-negotiable.

Technical Note: All values are nominal and subject to industry tolerances and manufacturer corrections. Specifications are subject to change without notice. It is the buyer’s responsibility to verify that all materials meet the specific requirements of the project and comply with local electrical codes.

This heavy-duty shielded 12/4 VFD cable is engineered to solve critical electrical and mechanical challenges across demanding industrial and automation environments:

Key Applications & Equipment

• Precision Automated Machinery: Powering fractional horsepower VFD motors in bottling, packaging, and high-speed assembly lines where nearby sensor interference must be avoided.
• Chemical & Water Treatment Pumps: Suppressing destructive bearing currents in wet, corrosive environments where the rugged, direct-burial PVC jacket protects against chemical washdowns.
• HVAC Blowers & Exhaust Fans: Eliminating electromagnetic noise lines inside commercial air handling systems to prevent building automation system errors.
• Wind Energy Equipment: Excellent for internal wind turbine nacelle and tray wiring due to its dual WTTC 1000V and flexible motor supply ratings.

Technical Problem Solvers

Preventing Motor Bearing Failures in Fractional HP Pumps

Variable frequency drives can generate harmful common-mode voltages that discharge through motor bearings, causing premature failure. Utilizing this 4-conductor shielded cable on smaller fractional HP motors properly drains these destructive high-frequency currents, extending motor lifespan.

Eliminating PLC and Sensor Interference in Automated Conveyors

In high-speed packaging and sorting facilities, the high-frequency switching of VFDs acts as an antenna, disrupting nearby low-voltage sensor lines and PLC control loops. The dual-layer foil and tinned copper braid shielding in this cable traps and grounds electromagnetic interference (EMI), preventing costly automation downtime.

Code-Compliant Direct-Run Installation on Industrial Factory Floors

Under NEC regulations, standard building wire requires expensive rigid conduit runs. Because this VFD cable is UL 1277 Type TC-ER (Exposed Run) rated, contractors can route it directly from the cable tray to the motor housing without conduit, drastically reducing labor and material costs.

Reliable Wet and Chemical Wash-Down Performance in Food Processing

Exposed to frequent high-pressure water, steam, and sanitation chemicals, standard motor cables quickly degrade. The oil-, moisture-, and chemical-resistant PVC jacket on this cable ensures long-term insulation integrity in harsh wash-down bays and outdoor pump stations.

⚠️ Application & Safety Note The scenarios described above are a few common industrial use cases. Because project requirements, motor specs, and local electrical codes vary, please consult with a licensed electrical engineer or certified industrial contractor to verify compatibility and code compliance before purchasing and installing these materials.

General Shipping Information

In-stock orders placed before 3pm EST typically ship within 1-2 business days. Our business days are Monday through Friday; we do not process orders on Saturday, Sunday, or major US Holidays.

You will receive an e-mail with a tracking number within 1-2 business days from the time its shipped. You will also be able to view your order status and tracking numbers in your account order history.

Expedited Shipping

Expedited shipments are delivered Monday-Friday except on US Holidays. The order must be placed before 12pm CST to ship same day ( Mon-Fri Only).

Returns

You have 30 days from the day you receive the item to contact us for a return. Returns are subject to a 30% Restocking Fee.

Please contact us at help@wireamerica.com to request a return authorization. Have your order number or name the order was placed with ready and we will email you an RMA (return) number and instructions for return. Currently, we do not offer exchanges. A new order must be placed if you need a different item. If you provide the new order number at the time of your return request, the restocking fee may be lowered.

Orders on any items with a material value of $50 or less are non-returnable.