The CYDLK4 is a 4 sq.mm double-level knife disconnect terminal block designed for industrial control panels, instrumentation systems, PLC cabinets, machine wiring, and process automation applications. This terminal block combines feed-through wiring and knife disconnect functionality in a compact double-level design, making it an ideal solution for industrial circuits where safe isolation, testing, and troubleshooting are required.
In industrial electrical systems, there are many situations where a signal or control circuit must be temporarily disconnected for testing, maintenance, fault diagnosis, or calibration. Removing wires manually can disturb the circuit and increase maintenance time. The CYDLK4 solves this problem by providing a built-in knife disconnect mechanism, which allows the circuit to be opened safely using a disconnect lever without removing conductors from the terminal block. This improves technician safety and reduces system downtime.
One of the key advantages of the CYDLK4 is its double-level design, which provides two independent wiring levels in a single terminal body. This allows engineers to save DIN rail space while maintaining organized panel wiring. In compact control cabinets and automation systems where panel density is high, double-level terminals help reduce component count and improve wiring efficiency.
The knife disconnect function is particularly useful in instrumentation circuits, PLC I/O wiring, signal testing applications, current loop circuits, and control systems where temporary circuit isolation is required. By simply operating the disconnect mechanism, technicians can safely interrupt the circuit for maintenance or measurement without disturbing the connected conductors. This makes the CYDLK4 ideal for professional industrial maintenance applications.
Manufactured using high-grade Polyamide 6.6 insulation material, the CYDLK4 provides excellent dielectric insulation, heat resistance, and mechanical durability for long-term industrial use. The insulated housing protects against accidental electrical contact while ensuring reliable operation in harsh industrial environments with vibration, continuous electrical load, and temperature fluctuations.
The terminal block uses a screw clamp wire connection system, which provides secure conductor retention and stable electrical continuity. Screw clamp terminals are widely preferred in industrial applications because they offer strong mechanical grip, low contact resistance, and dependable long-term performance. The CYDLK4 supports conductor sizes from 0.2 mm² to 4 mm² (24–10 AWG), making it suitable for signal circuits, control wiring, instrumentation systems, and automation panel installations.
Its DIN rail mounting design allows quick installation in industrial electrical cabinets, machine panels, OEM systems, and process automation enclosures. The compact terminal width and double-level construction help improve panel organization while supporting high-density wiring layouts.
The CYDLK4 is widely used in:
With its knife disconnect functionality, double-level wiring design, secure screw clamp connection, and industrial-grade reliability, the CYDLK4 is a practical and efficient terminal block solution for professional industrial electrical systems.
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