General
Degree of protection	with steel wire braid
Number of conductors	4
Core cross section	2,5 mm²
Operating voltage	300/500 V
Test voltage	4000 V
Insulating material	PVC
Wire identification	numbers
VDE registration number	7030
Flame retardancy	in accordance with EU Directive 305/2011 (BauPVO/CPR)
Application	For medium mechanical stress, fixed installation, occasional movement without tensile stress
Operating environment	dry, damp, wet
Chemical resistance	Resistant to acids and alkalis

The control cable ÖLFLEX® CLASSIC 110 SY 4G2,5 from Lapp is a flexible cable designed for use in industrial and machine engineering applications. It is designed for medium mechanical stress and is suitable for fixed installation as well as occasional movement without tensile stress. The cable is universally used for wiring internal machine and cross-system control circuits and can be used in dry, damp, and wet rooms. The PVC outer sheath provides resistance to acids and alkalis, expanding the range of possible applications in various environments. The cable is equipped with a steel wire braid, which provides enhanced protection under increased mechanical load. An extruded inner sheath ensures additional robustness and improves insulation of the conductors.

Applications
This control cable is designed for applications in the machine and plant engineering industry, where a reliable and flexible connection between control and switching devices is required. It is suitable for wiring control circuits in production plants, conveying systems, machine tools, and other industrial systems. The cable can be used in indoor environments with varying humidity levels, including wet environments, as long as there is no direct, continuous water exposure. VDE-tested quality ensures high electrical safety and reliability in operation.

Functions and Equipment in Detail
The cable features a 4-conductor design with a cross-section of 2.5 mm² per conductor. The conductors are numbered for easy identification, simplifying assignment and wiring during installation. The operating voltage is U0/U: 300/500 V, which is sufficient for most control and signal applications. The test voltage of 4000 V ensures high electrical insulation strength and minimizes the risk of breakdowns. The cable is surrounded by a steel wire braid, which reduces mechanical damage from external influences such as pressure, scratching, or mechanical stress. The PVC outer sheath is flexible and offers chemical resistance to acids and alkalis.

Technology Explained Simply
The designation ÖLFLEX® CLASSIC 110 SY 4G2,5 describes the product line (ÖLFLEX® CLASSIC), the construction type (SY = with steel wire braid), the number of conductors (4G), and the cross-section (2.5 mm²). The steel wire braid serves as mechanical protection and prevents damage from external influences. The extruded inner sheath improves insulation of the conductors and increases the cable's service life. The PVC insulation is flexible and resistant to chemical influences, making the cable suitable for various industrial environments. The VDE testing and registration number 7030 confirm compliance with European safety standards.

Compatibility and Accessories
The control cable is designed for use in standard control systems and machine controls. It is compatible with common connectors, terminals, and switching devices rated for 300/500 V operating voltage. The cable can be used in combination with other products from the ÖLFLEX® CLASSIC series to ensure a consistent wiring system. The classified fire behavior according to EU Directive 305/2011 (BauPVO/CPR) allows use in building products that must meet specific fire safety requirements. The exact classification can be selected via the LAPP website by article number.

Installation and Mounting
The cable is designed for fixed installation and can be used for occasional movement without tensile stress. Installation follows standard procedures for flexible control cables: the cable is routed in cable ducts, shafts, or through conduit. Care must be taken during installation to avoid damaging the steel wire braid. Conductors are connected using appropriate connectors or terminals, with the numbered conductor identification simplifying assignment. The cable is not intended for outdoor use or in explosive environments.

Advantages in Operation
The control cable offers high mechanical and chemical resistance, increasing service life and reliability in operation. VDE testing and the 4000 V test voltage ensure high electrical safety. The steel wire braid protects the cable from mechanical damage, which is particularly beneficial in environments with increased mechanical stress. The flexible PVC insulation allows easy routing and bending without damaging the cable. Universal usability in dry, damp, and wet rooms expands application possibilities in various industrial applications.