KBE Solar UV 4mm2 solar cable

This single-core solar cable is ideal for connecting photovoltaic panels in battery and ONGRID systems. With a diameter of 4mm², this cable is ideal for connecting panels up to 130W at distances of up to 15 meters, while maintaining minimal voltage loss. Its durable, double-sheathed coating is UV-resistant, ensuring long life and reliability in outdoor conditions.
Flexibility and ease of installation are the key features of this cable. Thanks to its construction, the cable FlexiSun KBE UV 4mm² provides exceptional flexibility, making it easy to route even in challenging environments. This cable is made of 99.9% tinned Class 5 electrolytic copper, in accordance with the IEC 60228 standard, which increases the conductive surface area and improves the flow of electrostatic charges. This design minimizes energy loss, resulting in high energy efficiency of the entire system.
Performance and safety are of the highest standard, thanks to compliance with a number of stringent standards. The cable features low electrical resistance, allowing for efficient energy transfer without unnecessary losses. It can operate in extreme temperature conditions, from -40°C to +90°C, and can withstand short circuits at temperatures up to +250°C. Additionally, the cable has been tested for resistance to external factors such as kerosene, ozone, and ammonia, ensuring its reliability even in the harshest conditions.

Technical specifications

• Model: IBC FlexiSun 4 mm²


• Nominal cross-section: 4 mm²


• Cable diameter: 2.4 mm


• Outer diameter (minimum): 5.2 mm


• Outer diameter (maximum): 5.6 mm


• Net cable weight: 58 kg/km


• Minimum bending radius: 17 mm


• Maximum allowable tensile load: 60 N


• Maximum current load at 60ºC: 55 A


• Permissible short circuit current (1s): 0.50 kA

• Nominal AC voltage: U0/U 0.6/1.0 kV


• Maximum PV DC system voltage: 1.8 kV


• Maximum permissible AC operating voltage: 0.7/1.2 kV (wire-earth/wire-wire)


• Maximum permissible DC operating voltage: 0.9/1.8 kV (wire-earth/wire-wire)


• AC/DC test voltage: 6.5 kV/15 kV (test time: 5 min)


• Current carrying capacity: Dependent on the requirements for photovoltaic cables TUV 2 PfG 1169/008.2007

• Ambient temperature: From -40ºC to +90ºC (movable and fixed)


• Short circuit temperature: +250ºC (max. 5 seconds in the pipe)


• Resistance to low temperatures: Complies with EN 60811-1-4


• Heat/humidity test: Complies with EN 60068-2-78 (1000 h at 90ºC and 85% humidity)

• Load resistance: 15 N/mm² in use, 50 N/mm² during installation


• Bending radius: Min. 3 x D (D = outer diameter max.)


• Abrasion resistance: Tests in accordance with DIN 53516

• Resistance to kerosene: 24-hour test at 100ºC according to DIN VDE 0473 811-2-1


• Ozone resistance test: Compliance with DIN EN 50396


• UV radiation resistance test: UL 1581, ISO 4892-2, HD 605/A1-2.4.20


• Acid resistance: Complies with EN 60811-2-1 (7 days, 23ºC)


• Ammonia resistance: Ammonia-saturated atmosphere for 30 days (test)


• Water absorption: Test according to DIN EN 60811-1-3

• Flame spread (individual cable): DIN EN 60332-1-2


• Flame spread (cable bundle): Test according to DIN EN 50305-9


• Smoke emission: Light transmission > 70% (test according to IEC 61034 and DIN VDE 0482 part 268-2)


• Ecological safety measures: ROHS compliance

• Wire: Electrolytic copper, tin-plated, class 5 according to IEC 60228


• Insulation: HEPR 120ºC, IEC 60502-1-A


• Shell: Cross-linked ethylene vinyl acetate elastomer (EVA)


• Labeling: IBC FlexiSun PV1-F 0.6/1 kV, VDE number 8026, TUV certificate R 60014271

To sum up, FlexiSun KBE UV 4mm² This cable meets the highest standards of performance and durability, ideal for professional photovoltaic installations. Its weather resistance and high flexibility make it an excellent choice for systems requiring reliable connections with high energy efficiency.