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Submersible pump cableSubmersible pump cableOrder-specific design

EN 50525-2-21 AD8 Submersible Rubber Pump CablePower connection for submerged pumps and water-handling equipment. Select insulation, sheath and cable entry for the actual liquid and installation.

Power connection for submerged pumps and water-handling equipment. Select insulation, sheath and cable entry for the actual liquid and installation.

Water-resistant

Reference configuration

Order designation: EN 50525-2-21
Rated voltage: —
Insulation: EPR or EPDM
Outer sheath: Rubber compound
Core arrangement: Core count to order

All sizes (1)

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Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum

Rated voltage: —
Temperature limit: —
Conductor: Stranded copper
Insulation: EPR or EPDM
Outer sheath: Rubber compound
Core arrangement: To order

Application fit

Is EN 50525-2-21 right for your machine?

Power connection for submerged pumps and water-handling equipment. Select insulation, sheath and cable entry for the actual liquid and installation.

Fixed installation

Suitable

Designed around the specified installation; select supports, bend protection and terminations together.

Immersion & wet locations

With conditions

Depth, pressure, fluid and temperature must be specified for immersion service.

Free-hanging vertical run

With conditions

Support and allowable suspended load are determined for the actual cable construction.

Cylindrical / multi-layer drum

With conditions

Repeated bending needs separate fatigue data; a flexible construction alone does not establish a cycle rating.

Typical machinesWater and wastewaterAgricultureIndustrial pumping

Construction

Layer by layer

Representative schematic; not to scale. The final core arrangement and dimensions follow the agreed drawing.

#	Layer	Material & reference
1	Conductor	Stranded copper
2	Insulation	EPR or EPDM
3	Outer sheath	Rubber compound

Technical data

Ratings & operating limits

Mechanical

Service profile: Fixed installation with installation flexing

Resistance

Water exposure: Specify depth, pressure and water chemistry
Chemical compatibility: Verify against the actual fluid and temperature

Reference standards

Design reference: EN 50525-2-21

Identification

Core identification: To the agreed construction drawing
Sheath colour: To the agreed construction drawing

Sizes

Configuration and materials

Conductor size, dimensions and electrical loading are determined for the order. No size is implied by the illustration.

Selection reference
Configuration	Rated voltage	Insulation	Outer sheath	Core arrangement
EN 50525-2-21	—	EPR or EPDM	Rubber compound	Core count to order

This reference row describes a construction, not an orderable size. Provide the required core count and cross-section with the enquiry.

Quality & approvals

Testing & inspection

Routine tests on every production length, sample and type tests per batch — documented on an EN 10204 3.1 inspection certificate.

ConductorClass 5 stranding
Spark test100 % in-line
Lay-upCores, earth, fillers
SheathingInner, braid / screen, outer
Electrical testsAC voltage, resistance
DimensionsOD, wall thickness
Inspection documents & dispatchDrum & dispatch

Testing & inspection	Test value / reference	Frequency

Inspection certificate

Issued with every drum, listing the routine test results for that length.

Product approvals

Submersible pump cableCE · LVDRoHS · REACH

Company certificates

ISO 9001ISO 14001ISO 45001VDE marks approvalUL / cULCE · LVD / EMC

Marking & supply

Ordering & delivery

Sheath marking

Technical documents

Downloads

PDFTechnical datasheet (English)Construction and technical data XLSXSpecification data (Excel)Reference configurations and specification values

Revision: 2026-10-30
Updated: 2026-10-30

FAQ

Questions engineers ask first

Not covered here? Send your drawing — an engineer replies within 2 business hours.

What information is needed for selection?

State the application, circuit arrangement, required length and termination interfaces. For electrical circuits, include supply voltage, motor current and conductor size. Also describe fluid exposure, operating temperature, installation loads and any repeated movement. These inputs define the construction and the checks needed for the quoted configuration.

Do the illustrations define the supplied dimensions?

The gallery shows representative construction and is not drawn to scale. It does not define a supplied diameter, core size, connector interface or weight. Use the agreed construction drawing and order-specific technical schedule for installation clearances, terminations and handling calculations. Unverified dimensional values are deliberately left empty.

How are immersion and chemical conditions assessed?

Identify the actual medium, pressure, temperature and exposure duration rather than relying on a general water-resistant description. Include cleaning fluids, hydrocarbons or dissolved gases where relevant. Cable ends, joints and connector seals must be assessed with the cable. A material name alone does not establish a qualified immersion system.

Does a standard reference confirm product certification?

A design reference identifies the cable family or a relevant engineering method. It does not transfer another product’s certification, pressure qualification, drinking-water approval or hazardous-area rating. Required certificates and test scope must identify the exact supplied construction and assembly. Request these requirements explicitly so they can be addressed in the quotation.

Which technical documents are available?

Reference files are provided for project screening. Final parameters and the applicable document package are confirmed during quotation.

Request a quote

Get an engineering quote for EN 50525-2-21

Your selection and application details are copied into the enquiry form below.

01Selected sizes

Use + Add next to a size or configuration.

02Reel & motion

Add your operating conditions here to include them in your enquiry.

Reel typeDrum core diameter (mm)Cable length on drum (m)Travel speed (m/min)Max. accelerationCycles per hourLength and quantityAmbient temperatureExposure (outdoor, water, oil, abrasion)Destination countryEquipment and operating conditions

03Message for our engineers

EN 50525-2-21 AD8 Submersible Rubber Pump Cable

Selected sizes:


Reel & motion:
- Reel type: 
- Drum core diameter (mm): 
- Cable length on drum (m): 
- Travel speed (m/min): 
- Max. acceleration: 
- Cycles per hour: 
- Length and quantity: 
- Ambient temperature: 
- Exposure (outdoor, water, oil, abrasion): 
- Destination country: 
- Equipment and operating conditions:

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