4-core 1100V rated deep well submersible pump cable. PVC or rubber insulation options. For deep well installations where voltage drop over long cable runs requires higher voltage rating than standard 600V cables.
Submersible pump cables are permanently submerged in water — a duty condition that eliminates standard PVC and rubber cables, which are not designed for continuous water immersion. The waterproof construction of submersible pump cables uses a water-blocking filler compound and tightly extruded insulation and sheath layers to prevent water ingress through the cable body, and tinned copper conductors to resist the corrosion that occurs when moisture reaches bare copper through micro-cracks and abrasion damage.
The 1100V rating allows the pump motor voltage to be increased to compensate for voltage drop over very long cable runs in deep wells — maintaining full motor performance and efficiency at depths where 600V cable would result in excessive terminal voltage drop.
| Parameter | Value |
|---|---|
| Cores | 4 cores |
| Profile | Round |
| Rated Voltage | 1100V |
| Conductor | Tinned copper, flexible |
| Sheath | PVC or Rubber |
| Water Immersion | Permanently submerged rated |
| Temp Range | −5°C to +75°C (immersed) |
Standard cables fail within weeks when permanently submerged — water tracks along conductor strands and through micro-voids in the insulation, causing insulation resistance to fall and eventually short-circuit faults. Submersible cable construction prevents this with water-blocking fillers and tightly controlled insulation geometry.
Bare copper forms a conductive copper oxide layer when wetted — initially this is low-resistance, but as corrosion progresses the resistance increases, generating heat that accelerates failure. Tinned conductors maintain stable low resistance for the service life of the installation.
Voltage drop is a serious issue in deep well installations — a 200m cable run at 400V can see 15–20V drop, reducing pump motor torque and efficiency. Selecting the correct cross-section and voltage rating ensures the pump receives adequate terminal voltage at all operating depths.
