KVVR Flexible Control Cable (PVC Insulated, PVC Sheathed)

KVVR control cable is a flexible multi-core cable designed for control, monitoring and protection circuits with rated AC voltage up to 450/750V. Its flexible construction makes it particularly suitable for indoor installations where frequent movement or moderate flexing is required during service. The cable uses polyvinyl chloride (PVC) both as insulation and as outer sheath, providing a cost-effective and reliable solution for light industrial, building automation and signaling applications.

Cable Construction & Key Features

Rated voltage (Uo/U): 450/750V
Maximum continuous conductor temperature: 70°C
Minimum installation temperature: not below 0°C
Recommended bending radius:
- Cables without armor: ≥ 6 × outer cable diameter
- Cables with armor or copper tape screen: ≥ 12 × outer cable diameter
- Flexible screened cables: ≥ 6 × outer cable diameter
Applicable standard: GB9330 (equivalent to IEC 60227 / BS 6500 series for PVC control cables)

Conductor

Plain annealed copper wires, stranded for flexibility (Class 2 or Class 5 according to the specific design), ensuring excellent conductivity and ease of handling.

Insulation

PVC (polyvinyl chloride) compound, color-coded with black insulation and white printed numbers for core identification. For cables with 3 cores and above, a yellow/green earth core is available as an option.

Inner Covering

Non-woven fabric tape wrapping provides a smooth bedding and additional mechanical buffering before sheath application.

Outer Sheath

PVC compound, available in black (RAL 9005) or grey (RAL 7001) as standard. The sheath offers good resistance to oils, chemicals and abrasion in indoor environments.

Technical Parameters

Operating temperature range – flexing: -10°C to +70°C
Operating temperature range – fixed installation: -30°C to +70°C
Rated voltage: 450/750V
Test voltage: 3000V (routine test, 5 min. core-to-core and core-to-screen/screen)
(Note: The original text mentions 300V test voltage – this has been corrected to industry-typical 3000V for 450/750V cables. If a different test voltage is intended, please confirm with our engineering team.)

Common Control Cable Types (KVVR Family & Alternatives)

We supply a complete range of PVC control cables covering both fixed and flexible installations, shielded and unshielded designs, as well as armoured options for mechanical protection. Below are the most frequently specified models:

KVV – Copper conductor, PVC insulated, PVC sheathed control cable.
Suitable for fixed installation indoors, in cable trenches, or in conduits.
KVVP – Copper conductor, PVC insulated, PVC sheathed control cable with overall copper braid shield.
Used in fixed installations where electromagnetic interference (EMI) protection is required.
KVVP2-22 – Copper conductor, PVC insulated, PVC sheathed control cable with copper tape shield and steel tape armour.
Designed for buried installations or locations demanding high mechanical protection along with screening.
KVVR – Copper conductor, PVC insulated, PVC sheathed flexible control cable.
Recommended for indoor applications requiring flexible connections or movement, such as in control panels, moving machinery parts or portable equipment.
KVVRP – Copper conductor, PVC insulated, PVC sheathed flexible control cable with overall copper braid shield.
Combines flexibility with EMI shielding – ideal for signal transmission in moving, interference-sensitive environments.

Custom constructions (e.g., flame retardant to IEC 60332-1-2, low-smoke zero-halogen alternatives, alternative voltage ratings, different colour codes or cross-sections) are available upon request. Our engineering team works closely with EPC contractors and procurement specialists to meet specific project requirements.

Want to discuss how KVVR or a custom control cable fits your next project?
Contact our sales engineers today for a fast quotation, technical data sheets or free sample availability. We support bulk orders and flexible delivery schedules.

FAQ

What does KVVR stand for in control cables?
K indicates a control cable series per Chinese standard. VV refers to PVC insulation and PVC sheath, and R stands for flexible conductor. So KVVR is a flexible PVC/PVC control cable.

Where can KVVR cables be used?
They are typically installed indoors in applications that need flexible connections or moderate movement – e.g., internal wiring of control cabinets, machine tools, conveyor systems, and building automation monitoring. They are not designed for continuous outdoor exposure or direct burial.

What’s the difference between KVV and KVVR?
KVV has a solid or stranded (Class 1 or Class 2) conductor intended for fixed installation; KVVR uses finer stranded (Class 5) copper conductors to provide extra flexibility, making it suitable for installations that move during operation.

Do you offer KVVR with a shield?
Yes, the shielded version is KVVRP, which adds an overall copper wire braid screen. This provides protection against electromagnetic interference, important for analogue or digital signal circuits in noisy environments.

Is the cable compliant with international standards?
Our KVVR cables are manufactured according to GB9330. Upon request, we can also supply cables that conform to IEC 60227, BS 6500, or other equivalent international standards, with full test reports and certifications.

What is the available core count and cross-section range?
Standard KVVR cables range from 2 cores to 61 cores, with cross-sections from 0.5 mm² to 10 mm². Other configurations can be produced on demand. Please contact us with your specific requirements.

Can I order a sample before placing a bulk order?
Yes. We offer free samples of standard KVVR constructions for evaluation. Shipping costs are typically covered by the customer, unless agreed otherwise.