KVVP-450/750V

KVVP Copper Wire Braid Screened PVC Control Cable — 450/750 V

Braid-screened control cable with a low-resistance shield path for VFD leads and long analogue runs.

Request a quotation WhatsApp an engineer

Lead time15–25 working days
Minimum500 m per size
SampleFree up to 5 m

Illustrative cross section. Construction layers listed below.

KVVP takes the KVV construction and inserts a braid of 0.12–0.20 mm annealed copper wires over the laid-up bundle, typically at 80–90 % optical coverage, with a tinned drain wire laid against the braid for termination. That braid is what makes KVVP the correct answer for VFD output leads and analogue runs near power conductors: at the 2–20 kHz carrier frequencies a drive generates, shield performance is governed by the resistance of the shield path, and a braid of copper wires carries that current far better than a thin foil.

The braid is also the reason KVVP survives installation abuse. It flexes with the cable, keeps coverage when the cable is bent around a motor terminal box, and gives the gland something substantial to clamp onto. Voltcore builds KVVP to GB/T 9330 with the braid angle held at 30–45° so that coverage does not open up when the cable is pulled through a tray; higher coverage classes and a composite foil plus braid screen are available where the EMC study calls for them.

Specification

KVVP 450/750 V — Technical Specification
Item	Value
Rated voltage U0/U	450/750 V
Conductor	Class 2 stranded plain annealed copper, IEC 60228
Number of cores	2 – 61
Cross-section range	0.75 – 10 mm²
Insulation	PVC/A, 70 °C rated
Screen	Copper wire braid, 0.12–0.20 mm wire, 80–90 % coverage, with tinned copper drain wire
Sheath	PVC ST1 black, flame-retardant grades available
Max. continuous conductor temperature	70 °C
Test voltage	2.5 kV rms for 5 min (core to core and core to screen)
Minimum bending radius	15 × cable overall diameter
Screen termination	360° clamp or EMC cable gland recommended
Installation temperature	Not below 0 °C

Layer-by-layer construction

Listed from the conductor outward. Read this alongside the specification table — the two together tell you whether the cable will survive its installation method.

1. ConductorStranded plain annealed copper, Class 2 to IEC 60228
2. InsulationPVC/A extruded per core, 0.6–1.0 mm wall, colour or number identified
3. Lay-up and fillerCores laid up in concentric layers with non-hygroscopic PP fillers for circularity
4. Binder tapePolyester tape over the bundle to hold the lay before screening
5. ScreenCopper wire braid at 80–90 % coverage with a tinned copper drain wire in continuous contact
6. SheathBlack PVC ST1, 1.2–1.6 mm nominal, extruded over the braid

Reference dimensions and weights

KVVP 450/750 V — 4-core dimensions and weight (reference figures)
Cores × cross-section (mm²)	Conductor structure (No./mm)	Insulation thickness (mm)	Braid wire diameter (mm)	Sheath thickness (mm)	Approx. overall diameter (mm)	Approx. weight (kg/km)	Max. DC resistance at 20 °C (Ω/km)
4×0.75	7/0.37	0.6	0.12	1.2	8.7	155	24.5
4×1.0	7/0.43	0.6	0.12	1.2	9.1	175	18.1
4×1.5	7/0.52	0.7	0.15	1.2	10.2	225	12.1
4×2.5	7/0.68	0.7	0.15	1.4	11.3	300	7.41
4×4	7/0.85	0.8	0.15	1.4	13.2	400	4.61
4×6	7/1.04	0.8	0.20	1.4	14.6	520	3.08
4×10	7/1.35	1.0	0.20	1.6	18.0	760	1.83

Reference figures for preliminary sizing and drum planning. Overall diameter and weight vary with strand construction and sheath thickness tolerance; certified drawings are issued with each quotation.

Engineering characteristics

Copper wire braid at 80–90 % coverage with a drain wire, giving a low-resistance shield path at power frequency and up to VFD carrier frequencies
Braid stays effective after bending, so the cable suits motor terminal boxes and machine-mounted runs
450/750 V rating, 2.5 kV rms for 5 min test voltage including core to screen
PVC/A insulation rated 70 °C continuous, 160 °C for 5 s short circuit
Screen resistance measured per drum; typical loop resistance of the braid plus drain wire is under 15 Ω/km
Minimum bending radius 15 × cable overall diameter during installation
Available with ZR-KVVP and WDZ-KVVP sheath compounds, and as KVVP22 with steel tape armour

Typical applications

Variable frequency drive output and motor leads where common-mode current must return to the drive
Analogue 4–20 mA and 0–10 V loops running in a tray shared with power conductors
PLC and DCS marshalling cubicles with long field cable runs
Encoder, resolver and pulse feedback wiring on machine tools
Substation control and protection wiring adjacent to switchyard cabling

Ordering options

Higher braid coverage (up to 95 %) or a foil plus braid composite screen
ZR-KVVP and WDZ-KVVP halogen-free sheath compounds
KVVP22: steel tape armoured, 12 × overall diameter minimum bending radius
Individually screened cores or pairs in place of the overall braid
Tinned copper braid for marine and coastal installations

Standards manufactured to

GB/T 9330
IEC 60228 (conductor)
GB/T 19666 (flame-retardant grades)
IEC 60332-1-2 (flame propagation)
GB/T 3048 (electrical test methods)
RoHS and REACH compliant compounds

Manufactured to other standards on request. Send the standard number with your RFQ and we will quote against it rather than against a near-equivalent.

Price and availability for KVVP Copper Braid Screened Control Cable

Include cross-section, core count, voltage grade, route length and installation method — those five determine price more than anything else on the page.

Engineer-reviewed before pricing
Reference drawings issued with the quotation
Free sample up to free sample up to 5 m

or sales@cable-export-manufacture.com · WhatsApp

KVVP Copper Braid Screened Control Cable — frequently asked questions

Should I choose a braid screen or a tape screen for a VFD motor lead?

Choose the braid. A VFD carrier sits between roughly 2 kHz and 20 kHz, where shield performance follows the resistance of the shield path; a braid of copper wires offers far lower resistance than a 0.05 mm tape. The braid also survives the bend at the motor terminal box, where foil tears.

What braid coverage does KVVP give, and can I get more?

Standard production is 80–90 % optical coverage, verified by weighing the braid against the theoretical mass. Where 95 % or a foil plus braid composite is needed, Voltcore quotes it as a modified construction; expect a larger overall diameter and a higher kg/km figure than the reference table.

Do I need to earth the screen at both ends?

For VFD and mixed-frequency installations, yes — terminate 360° at both ends using an EMC gland or a metal clamp so that the shield carries the common-mode current. For a pure 50/60 Hz analogue loop, earthing at one end only avoids a ground-loop current in the screen.

Is KVVP the same as KVVRP?

No. KVVP uses Class 2 stranded conductors for fixed installation; KVVRP uses Class 5 fine-wire conductors and is intended for flexible connections. If the cable moves after installation — a machine carriage, a door harness, a drag chain — specify KVVRP.