3 Core Control Cable

A 3-core control cable contains three separately insulated copper conductors enclosed within one overall protective sheath. It is commonly employed in single-phase installations that include a dedicated earth connection, or in straightforward three-wire control arrangements-for example, Start/Stop/Common setups-within automation and industrial monitoring environments.

Physical Structure & Material Blueprint

Conductor

Three separate cores formed from annealed copper wire, available in either solid or stranded construction

Core insulation

Each conductor is covered with its own insulating layer, typically PVC or XLPE

Outer sheath

A durable external jacket made from PVC, Polyurethane, or LSZH compounds, providing protection against environmental factors

Core identification

Differentiated through standard color codes-for instance, Brown, Blue, and Green/Yellow for the earth conductor-or via printed numerals 1, 2, and 3 on uniformly colored insulation

Depending on your installation conditions, alternative constructions beyond the basic unshielded type may be necessary:

Unshielded (e.g., KVV / YY): Ideal for standard fixed routing in environments with low electromagnetic interference.

Shielded/Screened (e.g., KVVP / CY): Equipped with an aluminum foil or tinned copper braided screen wrapped around the conductors. Essential for maintaining clean analog signal transmission in areas with high electrical noise.

Armored (e.g., KVV22 / SY): Reinforced with steel tape or steel wire armor, providing robust protection against severe mechanical stress-particularly suitable for direct burial or exposed installation in industrial settings.

Motor control circuits: Supplies power and switching control for small fractional-horsepower motors or motorized valve operators, typically using Phase, Neutral, and Ground connections

Push-button stations: Used in standard industrial Start/Stop stations that operate on a three-wire latching control scheme

Sensor and actuator connections: Interfaces with three-wire field devices such as proximity detectors, limit switches, and thermostat units

Voltage rating (U₀/U): Light-duty industrial types typically rated at 300/500V; heavy-duty versions such as the KVV series support up to 450/750V or 0.6/1kV

Conductor cross-sections: Generally available from 0.75 mm² to 2.5 mm² (approximately 18 to 14 AWG), ensuring manageable flexibility within wiring conduits

Temperature limits: Maximum continuous operating temperature is 70°C for PVC-insulated types and 90°C for XLPE-insulated types

Finished product + wooden barrel packaging