Is Your Signal Cable Causing Equipment Failure? Stop Losing Money on Poor Quality Wires.
You run a factory. You build control panels. You install audio systems. You know that one bad cable can stop everything. It is a nightmare when a machine stops working because of noise in the signal. It is frustrating when a wire breaks during installation because it is too stiff. You worry if the supplier lied about the copper purity. You hate it when the cable length is short, and you cannot finish the job.We hear you. Many buyers face these problems every day. They buy cheap cables from the market. These cables use recycled copper or copper-clad aluminum. The resistance is high. The signal gets weak over distance. The shielding is weak. Electromagnetic interference (EMI) ruins the data. The PVC jacket cracks in the sun or gets hard in the cold.You need a cable that works. You need a cable that lasts. You need a cable that is honest. We make that cable. Our 3-core 0.3mm² shielded RVVP cable is the solution for your signal and data needs. It uses real pure copper. It is flexible. It shields noise perfectly. It meets international safety standards. Let us look at why this product is the best choice for your business.
What Exactly is 3-Core 0.3mm² Shielded RVVP Cable?
RVVP stands for “R” (Flexible), “V” (PVC Insulation), “V” (PVC Sheath), “P” (Shielded). It is a standard type of soft cable used for low-voltage signal and data transmission.Our specific model is 3×0.3SQ. This means it has three separate wires inside. Each wire has a cross-sectional area of 0.3 square millimeters. This size is perfect for low-current signals. It is not for high-power mains electricity. It is for sending information from one place to another.The “Shielded” part is very important. Around the three inner wires, we wrap a braid made of tinned copper wire. This braid acts like a guard. It stops outside noise from getting into the signal. It also stops the signal from leaking out. This is critical in industrial environments with motors, VFDs (Variable Frequency Drives), and heavy machinery. These machines create a lot of electrical noise. Without shielding, your data will be corrupted.The outer jacket is PVC (Polyvinyl Chloride). PVC is tough. It resists oil, water, and abrasion. It is also flexible. This makes the cable easy to pull through conduits, cable trays, and tight spaces in machines.
Technical Specifications: The Numbers You Need to Know
When you buy cable, you need exact data. Here are the technical parameters for our 3-core 0.3mm² RVVP cable. We are transparent. We do not hide the details.
Conductor (The Wire Inside)
- Material: 99.9% Pure Copper (Oxygen-free copper available on request).
- Type: Stranded. This means many thin wires twisted together. This makes the cable flexible.
- Core Size: 3 Cores (Triple).
- Nominal Area: 0.3 mm² per core.
- Conductor Structure: According to IEC 60228, typically 16/0.15mm or similar fine stranding.
- Resistance: Max 12.0 Ω/km at 20°C. (Real copper has low resistance. Cheap cables have high resistance).
Insulation & Sheath (The Plastic)
- Insulation Material: PVC (Polyvinyl Chloride).
- Insulation Color: Standard is Black core with white number printing. Outer sheath is usually Black or White. We can customize colors (Red, Blue, Green, Yellow) for you.
- Sheath Material: PVC.
- Sheath Color: Black (standard), Grey, or White.
- Sheath Thickness: Approx 0.8mm – 1.0mm (Average). This provides good mechanical protection.
Shielding (The Noise Blocker)
- Shield Type: Copper Wire Braid.
- Material: Tinned Copper (prevents oxidation).
- Coverage: > 85% coverage. Some suppliers do 60% to save money. We do high coverage for better shielding effectiveness.
- Shielding Efficiency: > 90% against high-frequency interference.
Electrical & Physical Properties
- Rated Voltage: 300/300V (U0/U).
- Test Voltage: 1500V AC (2kV for some standards).
- Operating Temperature: -20°C to +70°C. (Can work in cold warehouses and hot factory floors).
- Bending Radius: 6 times the cable diameter. Very flexible.
- Flame Retardancy: Self-extinguishing. Does not spread fire easily.
Certifications & Standards
- Compliance: RoHS, REACH, CE, ISO 9001.
- Standard: Meets IEC 60227, GB/T 5023 (Chinese National Standard), and can be made to meet UL standards if needed for the US market.
Why Our 3×0.3SQ RVVP Cable Beats the Competition
You might ask, “Why should I buy from you? There are many suppliers.” Here is the truth about the market and why our product is superior.
1. Real Copper vs. Fake Copper
Many cheap cables use “Copper Clad Aluminum” (CCA) or recycled impure copper.
- The Problem: CCA breaks easily. It has high resistance. Over 50 meters, the voltage drops too much. The device does not get enough power or the signal is too weak.
- Our Solution: We use 99.9% pure electrolytic copper. It conducts electricity perfectly. The signal goes through without loss. The cable does not get hot. It lasts for 10 years or more.
2. High-Density Shielding vs. Loose Braid
- The Problem: Some factories use aluminum foil or very loose copper braids to save cost. Aluminum breaks when you bend it. Loose braids let noise in.
- Our Solution: We use a dense, tinned copper braid. It is soft, so it does not break when you bend the cable. It covers almost the whole cable surface. It blocks the noise from motors and radios effectively.
3. Flexible PVC vs. Stiff Plastic
- The Problem: Low-quality PVC uses cheap plasticizers. In winter, the cable becomes like a rock. If you bend it, the insulation cracks.
- Our Solution: We use high-grade flexible PVC compound. It stays soft even in cold weather (-20°C). You can install it easily in tight corners without tools breaking it. It resists oil and chemicals found in factories.
4. Honest Length and Size
- The Problem: A common complaint is “short measure.” You order 100 meters, but you get 95 meters. Or the wire is 0.28mm² but they label it 0.3mm².
- Our Solution: We are a factory. We control the production line strictly. We guarantee the length. We guarantee the copper diameter. We do not play games with numbers.
Where Can You Use This Cable? (Real World Scenarios)
This cable is versatile. It is not just for one thing. Here are the most common places we see our clients use this specific 3×0.3SQ cable.
Industrial Automation & Control Cabinets
This is the #1 use case. Factories use PLCs (Programmable Logic Controllers) and sensors.
- Scenario: You are wiring a proximity sensor to a PLC input card.
- Why this cable? You need a reliable signal. The factory floor has heavy machinery creating magnetic fields. The shield protects the “On/Off” signal from getting messed up. The flexibility helps you route the wire through the cable drag chain.
Audio and Video Equipment
- Scenario: Connecting a microphone to a mixer, or connecting speakers in a commercial building.
- Why this cable? The 3 cores can carry a balanced audio signal (positive, negative, ground/shield). The copper shield stops “hum” and “buzz” from lighting systems or power lines. It keeps the sound clean.
Data and Communication Lines (Low Speed)
- Scenario: RS485 communication networks, building management systems (BMS), or simple intercom systems.
- Why this cable? For distances up to 100-200 meters, this cable handles data well. It is cheaper than Cat5e or Cat6 but works fine for simple serial data protocols like Modbus.
Instrumentation and Test Equipment
- Scenario: Labs, medical devices, or testing benches.
- Why this cable? Precision instruments need clean power and clean signals. The shielding prevents external static electricity from affecting the sensitive readings.
Home and Building Wiring
- Scenario: Wiring doorbells, thermostats, or smart home sensors.
- Why this cable? It is safe (300V). It is easy to hide in walls because it is thin and flexible. It looks professional with its black jacket.
Packaging and Shipping: Ready for Export
We know you are importing. We know how to pack goods so they arrive safely. We do not want you to receive damaged goods.
- Packing: Standard export packing. Usually 100 meters or 200 meters per coil (drum). Smaller coils for samples.
- Outer Layer: Strong PVC woven bag or carton box. We can use wooden drums if you need pallets for heavy orders.
- Marking: The cable surface is printed with our brand, type (RVVP 3×0.3mm²), voltage, and meter marking. The outer package has a label with all specs.
- Shipping: We are near major ports (Tianjin, Qingdao, Shanghai). We can ship by sea (LCL or FCL), by air, or by express (DHL/FedEx) for urgent samples.
- Lead Time: Usually 10-15 days for a 20ft container. We keep stock of common items for fast delivery.
How to Order and Get a Quote
Buying cable should be simple. We made the process easy.
- Check the Specs: Look at the table above. Does 3×0.3mm² fit your need? If you need a different size (like 2×0.5mm or 4×0.75mm), tell us. We make many sizes.
- Ask for Samples: Not sure about the quality? Order a sample coil (50 or 100 meters). Test it in your lab or on your machine. Cut it open to see the copper.
- Customize: Need a special color? Need a specific print on the cable? Need a different jacket material (like LSZH – Low Smoke Zero Halogen for ships/tunnels)? We can do OEM/ODM.
- Get the Price: The price depends on copper market price (LME), order quantity, and packing.
Ready to stop the signal noise and fix your wiring issues?Do not wait for the next machine breakdown. Send us an inquiry today. Tell us your quantity. Tell us your port. We will send you a competitive quote within 12 hours.Click “Send Inquiry” or “Chat Now” to start your order. Let us be your reliable cable partner in China.