LAPP ÖLFLEX® UNIPLUS 1X35 BK – 4521012U100 is a professional-grade 35 sq. mm single-core electrical cable designed for reliable electrical wiring and power distribution applications. Manufactured by LAPP, this cable belongs to the widely used ÖLFLEX® UNIPLUS range and is designed for electrical installations where dependable conductivity, flexible handling, reliable insulation and flame-retardant performance are required.
The 1X35 BK designation indicates a single-core cable with a 35 mm² conductor cross-section, while BK identifies the black cable colour. The product is identified by the LAPP article number 4521012U100, making it convenient for electrical contractors, panel builders, OEMs, system integrators and industrial procurement teams to specify and source the correct cable.
The cable features a fine-wire bare copper conductor, providing good electrical conductivity while maintaining the flexibility required for practical installation. The conductor construction follows IEC 60228 Class 5, making the cable easier to route, bend and position than rigid solid-conductor alternatives of comparable size.
This flexibility can be particularly useful when installing the cable inside electrical control panels, switchgear cabinets, distribution boxes, wiring ducts and other protected electrical installation environments where clean cable routing and convenient termination are important.
A major feature of the LAPP ÖLFLEX® UNIPLUS 1X35 BK is its 35 mm² fine-wire bare copper conductor. Copper is widely used in electrical cables because of its good electrical conductivity and suitability for power transmission applications.
The Class 5 fine-wire construction provides additional flexibility during installation. This can make it easier for installers to route the cable around electrical components, through suitable ducts and within confined cabinet spaces.
The actual permissible current of the cable should always be determined according to the installation method, ambient temperature, cable grouping, conductor arrangement and applicable electrical standards.
The copper conductor is protected by PVC insulation, which provides electrical separation between the conductor and surrounding components.
PVC insulation is commonly used in industrial electrical cables because it offers a practical combination of electrical insulation, mechanical protection and installation flexibility.
The insulation helps protect the conductor from accidental contact with other conductive parts while supporting reliable operation under the cable's specified operating conditions.
The ÖLFLEX® UNIPLUS range is designed for applications with a nominal voltage of up to 1.1 kV AC RMS, making the cable suitable for compatible low-voltage electrical wiring and power distribution installations.
The cable is also designed for electrical testing at the specified test voltage, supporting insulation verification during manufacturing and quality-control procedures.
When selecting the cable for a particular project, the complete electrical installation should be evaluated to ensure that the cable's voltage, current, temperature and environmental ratings meet the application requirements.
The ÖLFLEX® UNIPLUS range incorporates flame-retardant characteristics according to the applicable specifications of the product family. This feature is important in electrical installations where cable behaviour under flame exposure is an installation consideration.
Flame-retardant cable construction is particularly useful in environments containing multiple electrical cables, such as control cabinets, switchgear assemblies and industrial wiring systems.
The LAPP ÖLFLEX® UNIPLUS 1X35 BK is suitable primarily for fixed installation applications. Its fine-wire construction allows convenient handling and routing, while the cable should be installed according to the manufacturer's specified bending radius and applicable installation requirements.
It can be used in suitable:
Control panels often require individual conductors to be routed between breakers, terminals, contactors, distribution components and other electrical devices.
The single-core construction of the ÖLFLEX® UNIPLUS 1X35 BK makes it suitable for such wiring arrangements where individual conductors are preferred. Its flexible Class 5 copper conductor can make routing and termination more convenient during panel assembly.
The black PVC insulation provides a clean appearance and allows the cable to be incorporated into the colour identification practices followed by the electrical installation.
The 35 mm² conductor size makes this cable suitable for electrical applications where a larger conductor cross-section is required.
It can be considered for compatible wiring in:
The suitability of the cable for a particular current or power application should always be verified through the appropriate cable-sizing calculations and installation standards.
The product has a 1 × 35 mm² configuration, providing a suitable conductor size for electrical applications requiring a larger single-core conductor.
The copper conductor provides good electrical conductivity, while the fine-wire construction offers flexibility during installation.
The Class 5 conductor construction makes the cable suitable for applications where easier handling and routing are required.
PVC insulation provides reliable electrical separation and protects the copper conductor during normal installation and operation.
The cable is suitable for compatible low-voltage installations with the specified nominal voltage rating.
The black outer insulation provides easy visual identification and a professional appearance for industrial electrical installations.
The cable is designed with flame-retardant characteristics according to the applicable product-family specifications.
The fine-wire conductor makes the cable easier to handle, route and terminate compared with rigid conductor constructions.
The cable can be used in suitable electrical panels, switchgear, distribution boxes and industrial wiring systems.
The product comes from the LAPP ÖLFLEX® range, which is designed for professional electrical and industrial cable applications.
The LAPP ÖLFLEX® UNIPLUS 1X35 BK – 4521012U100 can be used in a variety of suitable electrical and industrial installations.
Electrical Control Panels:
Suitable for internal power and electrical wiring connections where a 35 mm² single-core conductor is required.
Switchgear Cabinets:
Can be used for compatible electrical connections between components in switchgear assemblies.
Distribution Panels:
Suitable for power distribution wiring where the conductor size and electrical characteristics meet the project requirements.
Industrial Machinery:
Can be used for fixed electrical wiring within compatible industrial machinery and equipment.
Distribution Boxes:
Suitable for electrical connections inside appropriate distribution and electrical enclosures.
Wiring Ducts and Tubes:
The flexible fine-wire construction facilitates routing through suitable installation ducts and tubes.
Industrial Electrical Systems:
Can be considered for fixed wiring applications in factories, commercial buildings and other industrial environments where its technical specifications are appropriate.
The LAPP ÖLFLEX® UNIPLUS 1X35 BK – 4521012U100 offers a combination of 35 mm² fine-wire copper conductor, PVC insulation, Class 5 flexible construction and a 1.1 kV nominal voltage rating.
Its single-core configuration makes it suitable for electrical systems where individual conductors are routed separately. The fine-wire construction can simplify installation and cable routing, while PVC insulation provides the electrical protection required for properly designed wiring systems.
For electrical contractors, panel builders, OEM manufacturers, industrial maintenance teams and system integrators, this cable provides a practical solution for suitable fixed electrical wiring applications.
Before installation, users should verify the cable's suitability based on current requirements, installation method, ambient temperature, cable grouping, voltage, bending radius and applicable electrical regulations.
| Specification | Details |
|---|---|
| Brand | LAPP |
| Product Series | ÖLFLEX® UNIPLUS |
| Product Name | ÖLFLEX® UNIPLUS 1X35 BK |
| Article Number | 4521012U100 |
| Product Type | Single Core Cable |
| Cable Configuration | 1 × 35 mm² |
| Number of Cores | 1 Core |
| Conductor Cross-Section | 35 mm² |
| Conductor Material | Bare Copper |
| Conductor Construction | Fine-Wire |
| Conductor Class | IEC 60228 Class 5 |
| Insulation Material | PVC |
| Cable Colour | Black |
| Nominal Voltage | 1.1 kV AC RMS |
| Test Voltage | 3 kV |
| Cable Construction | Single Core |
| Application | Fixed Installation |
| Cable Shape | Round |
| Flame Retardant | Yes |
| Packaging | Ring |
| Manufacturer | LAPP |
| Series | ÖLFLEX® UNIPLUS |
| Article / SKU | 4521012U100 |
| Suitable Applications | Panels, Switchgear, Distribution & Industrial Wiring |
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