Industrial submersible pumps may need more than a standard motor power lead. Temperature switches, PTC or PT100 sensors, bearing-temperature devices, leakage electrodes and moisture detectors each need conductors between the submerged pump and the monitoring equipment. This product combines the required motor power conductors, protective earth and sensor or control cores in one custom underwater pump cable.
Unlike a standard stocked H07RN-F, H07RN8-F, flat pump cable or basic 3-core/4-core pump cable, this is normally engineered to a customer-supplied pump specification. The final construction must follow the pump manufacturer’s wiring diagram and the electrical, dimensional and environmental requirements of the installation.
Built Around Your Pump Configuration
This product is produced to specification rather than offered as one fixed warehouse configuration. A buyer can define the number and size of power cores, the protective-earth conductor, the number and size of control cores, twisted or screened pairs, individual or overall shielding, cable length, cable outer diameter, jacket material and marking.
The review also considers operating temperature, immersion depth, exposure to water, sewage, oil or chemicals, the cable-gland size and the pump cable-entry dimensions. Materials and layers are selected only after these inputs are known. Custom cable configurations can be manufactured according to customer-supplied pump specifications, wiring diagrams and cable-entry dimensions, subject to engineering confirmation.
Typical Construction
Conductor
Flexible stranded bare copper or tinned copper can be considered. The conductor material, class and cross-section are confirmed for the final cable design.
Power Core Insulation
EPR, HEPR, EPDM or another insulation may be selected according to the electrical rating and operating conditions. The material is configurable; no one insulation applies to every construction.
Control / Sensor Cores
Flexible copper conductors with individually identified insulation can be included for pump monitoring. Core identification and circuit assignment must match the approved wiring documentation.
Optional Control Pair
A twisted pair or screened twisted pair can be incorporated for monitoring signals when required by the pump system. This layer is optional and depends on cable design.
Protective Earth
A dedicated PE conductor can be included according to the pump’s electrical configuration and applicable project requirements.
Screening
Copper braid, copper tape, individually screened control pairs or overall screening may be considered where additional EMC control is required. Screening is optional, and its construction and termination must be agreed for the specific system.
Inner Filling / Bedding
Water-resistant elastomeric filling or bedding may be used to support the required roundness and internal arrangement. It is optional and depends on cable design.
Outer Sheath
A heavy-duty elastomer, CPE, rubber or another customized compound may be selected for continuous or prolonged submerged operation. Suitability for the actual water, sewage, oil or chemical exposure must be confirmed for the final compound.
Typical Custom Configurations
| Example Configuration | Typical Use |
|---|---|
| 4G2.5 + 2×1.0 mm² | Small industrial pump with temperature or leakage monitoring |
| 4G4 + 2×1.5 mm² | Pump motor plus two sensor circuits |
| 4G6 + 2×1.5 mm² | Medium-power wastewater pump |
| 4G10 + 2×1.5 mm² | Industrial sewage or drainage pump |
| 4G10 + S(2×0.5 mm²) | Pump with a screened monitoring pair |
| 4G16 + S(2×0.5 mm²) | Higher-power pump with a screened sensor pair |
| 4G25 + 4×1.0 mm² | Customized pump-monitoring configuration |
| Custom | Built according to the pump wiring diagram |
The configurations above are examples only. Final conductor sizes, control-core arrangement, insulation, sheath, screening and cable diameter are engineered according to the customer’s pump and installation requirements. They are not presented as certified standard sizes or as stocked configurations.
Technical Options
| Parameter | Available Options |
|---|---|
| Rated Voltage | Custom according to application |
| Power Cores | 3 / 4 / 6 / 7 or custom |
| Power Conductor | Custom mm² / AWG |
| Control Cores | 2 / 4 / 6 or custom |
| Sensor Conductor | 0.5 / 0.75 / 1.0 / 1.5 mm² or custom |
| Conductor | Bare copper / tinned copper |
| Power Insulation | EPR / HEPR / EPDM / custom |
| Control Pair | Straight / twisted / screened |
| Shielding | None / individual / overall |
| Outer Sheath | Rubber / CPE / special elastomer |
| Cable Shape | Round / custom |
| Temperature | According to selected materials |
| Water Exposure | Submerged application; exact medium and duty to be confirmed |
| Cable Length | Custom cut length |
| Printing | Custom marking available |
| Packaging | Coil / reel / drum |
All options remain subject to cable-design review. No exact voltage, temperature range, immersion depth, tensile rating, oil-resistance rating or certification is implied by this options table.
What Are the Control Cores Used For?
Motor Temperature Sensors
Additional conductors can connect thermal switches, PTC devices or other winding-temperature monitoring devices to the external pump-monitoring system.
Bearing Temperature Sensors
Larger industrial pumps may monitor bearing temperature. Dedicated signal cores can be allocated when the pump wiring diagram requires them.
Leakage / Moisture Sensors
Control cores can carry signals from water-ingress, seal-failure, leakage or moisture detection devices installed in the pump.
PT100 / Temperature Sensors
Dedicated conductors, and where required a suitable pair arrangement, can connect PT100 or other temperature sensors used for more precise measurement.
Pump Monitoring Systems
Signal conductors can link the pump’s installed sensors to external monitoring or protection equipment. The actual circuit design, conductor assignment, screening and termination must follow the pump manufacturer’s wiring diagram and monitoring-system requirements.
Standard Pump Cable vs. Pump Cable with Control Cores
| Standard Pump Cable | Cable with Control Cores |
|---|---|
| Primarily supplies motor power | Supplies motor power and monitoring circuits |
| Usually uses a standard core configuration | Uses a custom power-plus-signal configuration |
| Commonly selected as a stock item | Typically manufactured to project requirements |
| A separate control cable may be needed | Control or sensor cores can be integrated |
| Limited sensor integration | PTC, PT100, leakage and temperature circuits can be accommodated |
| Usually has a standard OD | OD can be engineered around cable-entry constraints |
Buyers who only need a conventional power lead should review our Submersible Pump Cables page. This integrated product is intended for pumps whose monitoring circuits or cable-entry constraints make a standard power-only construction unsuitable.
Information Required for a Custom Cable Quote
- Pump manufacturer and pump model, if available
- Motor voltage
- Motor power and/or current
- Number of motor power conductors
- Required power-conductor size
- Number and size of sensor or control cores
- Sensor type: PTC, PT100, thermal switch, leakage sensor, moisture sensor or other
- Whether twisted or screened control pairs are required
- Required cable length
- Maximum cable outer diameter
- Cable gland or cable-entry diameter
- Installation depth
- Water type: clean water, sewage, wastewater, slurry, oil-contaminated water or chemical wastewater
- Maximum operating temperature
- Required standard, certification or documentation, if any
- Required quantity and packaging
For replacement cables, customers may also send the original cable marking, cross-section drawing, connector dimensions or pump wiring diagram. An existing cable photo, cable-entry drawing and sensor-circuit details can help the technical review, but equivalence is not assumed until the construction is confirmed.
Custom Cable Development Process
1. Send Pump Requirements
Send the cable specification, pump model, wiring diagram or available details from the existing cable and cable entry.
2. Cable Structure Review
DEV CABLE reviews the conductor configuration, sensor circuits, material requirements, OD constraint and installation environment.
3. Specification Confirmation
A construction drawing or technical specification is confirmed before production. Any requested standard, certification or document must be identified and verified for the proposed construction.
4. Manufacturing & Testing
The cable is manufactured according to the approved configuration and inspected before shipment. The applicable inspection and document scope is agreed for the order; no unsupported test or certification is implied.
Applications
- Wastewater treatment: integrated power and monitoring circuits for submerged process pumps.
- Municipal sewage pumps: custom core arrangements for pump power, thermal and leakage devices.
- Mine dewatering: project-specific cables for pumps used in demanding drainage routes.
- Industrial drainage: combined power and sensor conductors where installation space is constrained.
- Slurry pumps: cable design reviewed against the actual fluid and mechanical environment.
- Submersible mixers: power and monitoring conductors in one integrated construction.
- Pump stations: coordinated cable length, gland fit and monitoring circuits.
- OEM pump manufacturing: cable construction developed from the OEM wiring and entry design.
- Replacement pump cables: evaluated from markings, dimensions, drawings and electrical data.
FAQ
Can power and sensor conductors be combined in one submersible pump cable?
Yes. The cable can be designed with motor power conductors plus additional control or sensor cores according to the pump wiring configuration and subject to engineering confirmation.
Can you manufacture screened sensor pairs inside the pump cable?
Screened or twisted sensor/control pairs can be incorporated when required by the pump monitoring system. The screen type and termination arrangement must be confirmed for the application.
Can you produce 4G10 + 2×1.5 mm²?
This type of configuration can be evaluated for manufacture according to the required insulation, sheath, overall diameter, cable entry and operating environment. Final feasibility is confirmed during the specification review.
Can the cable include PTC or PT100 signal conductors?
Dedicated signal cores can be included for PTC, PT100, thermal switches, leakage sensors or other pump-monitoring circuits. Their number, size, identification and pair arrangement must follow the wiring design.
Can you match an existing pump cable?
DEV CABLE can evaluate replacement requirements from cable markings, dimensional drawings, wiring diagrams, conductor sizes, materials and cable-entry limitations. A match or equivalence is confirmed only after technical review.
Can you customize the cable outer diameter?
The cable structure can be optimized around cable-entry and gland limitations, subject to conductor size, insulation thickness, screening, electrical requirements and manufacturability.
What information is needed for quotation?
Provide the pump model, motor voltage/current, conductor sizes, sensor/control circuits, cable length, OD limit, immersion environment, temperature, required documents and quantity.
Need a Cable Built Around Your Pump?
Send us the pump wiring diagram, conductor configuration, sensor requirements, cable length and cable-entry dimensions. Our team can review the requirements and propose a suitable custom cable construction, subject to engineering confirmation.