Cross-connection terminal (terminal), screw-type, yellow, 32 A, Number of poles: 2, Pitch in mm: 5.10, Insulated: Yes, Width: 7 mm, WQV 2.5/2 1053660000

Cross-connection bridge for potential distribution in modular systems

The WQV 2.5/2 cross-connection bridge (catalog number 1053660000) is a component of the Weidmüller modular system used to connect two adjacent terminals with a pitch of 5.1 mm. The device eliminates the need for jumper wires in circuits requiring the division of current or signal into two poles. Thanks to its screw-on design, the bridge ensures mechanical connection stability, resistant to vibrations typical of industrial environments. The yellow housing color facilitates visual identification in dense distribution systems and distinguishes this type of connection within the manufacturer's color coding system.

The element supports a rated current of up to 32 A, allowing for the safe transmission of values sufficient for motor control, heating, or industrial lighting circuits. The insulation made of polyamide (PA 66) with a V0 flammability rating guarantees resistance to high temperatures and prevents the spread of fire. The operating temperature range from -60°C to +130°C enables installation in outdoor conditions or in zones with extreme thermal fluctuations, not just in air-conditioned control cabinets.

Mechanical design and mounting safety

The precisely manufactured design is adapted to the 5.1 mm pitch standard, which is critical for compatibility with W-series modular screw terminals. The width of the connector is 7 mm, allowing for efficient use of space in the cabinet without loss of functionality. The height and length of the element (approx. 18 mm and 9.1 mm) have been optimized so as not to collide with other components above or below the terminals, while simultaneously providing a gripping surface for the mounting tool.

Full insulation and protection against touch mean that once installed, all conductive parts are covered by the insulating body. This eliminates the risk of accidental short-circuiting with a tool during service work. The PA 66 material is characterized by mechanical and chemical resistance, which prevents cracking under screw tightening force and degradation due to oils or other chemical substances in the control cabinet. Mounting is performed by screwing onto the base terminals with a standard screwdriver, without the need to dismantle the existing installation or use soldering techniques. The rigidity of the connection guarantees a constant tightening torque, preventing terminal loosening due to thermal cycles.

Application and operating parameters

The main application is found in potential distribution systems and logic signal transmission in industrial automation cabinets (PLC), power distribution boards, and machine control panels. As a two-pole element (2 poles), it is ideal where it is necessary to simultaneously power two adjacent circuits from a single source or connect measurement points without using additional "jumper" wires. This is useful when constructing signal lines, where connection precision is important for the integrity of data transmitted by the control system.

Using a ready-made module with fixed geometry reduces assembly time and material costs compared to cutting individual lengths of copper wire. The connection layout is clear and easy to verify visually thanks to the uniform yellow color. Disassembling the connector is fast - simply unscrew the mounting screws and remove the element without damaging the base terminals or the power supply wires. The device does not have Ex-e explosion-proof certification, which means it is intended for use in normal zones only; it meets basic safety standards for low-voltage electrical devices used in general industry. The rated voltage of 0 V in the ETIM specification results from the manufacturer's specific coding; the device works with systems operating at standard mains voltages (e.g., 230V AC / 400V AC) and DC/AC control voltages (24V), in accordance withthe parameters of the Weidmüller W-series (usually up to 500-800V depending on the base terminal model).