The CMB4 is a 4 sq.mm panel mount feed-through terminal block designed for compact electrical wiring applications in industrial control panels, machine wiring systems, switchgear assemblies, automation cabinets, and instrumentation panels. This terminal block is used to provide secure conductor-to-conductor electrical connection while maintaining organized panel wiring and reliable long-term electrical performance. It is especially suitable for applications where panel or surface mounting is preferred instead of DIN rail mounting.
One of the key advantages of the CMB4 is its panel mount modular design, which makes it an ideal solution for compact electrical installations. In many industrial applications, wiring space is limited and organized conductor routing is essential for safe and efficient electrical performance. The CMB4 allows multiple terminal blocks to be mounted together to form multi-pole terminal assemblies, improving wiring flexibility and panel organization.
The feed-through terminal design allows electrical continuity between incoming and outgoing conductors, making the CMB4 suitable for control circuits, signal wiring, machine panels, industrial automation systems, and electrical distribution applications. It acts as a secure connection point for conductor termination while maintaining low contact resistance and reliable current transfer.
The screw clamp wire connection system provides strong conductor retention and dependable electrical contact. Unlike temporary or loose wiring methods, screw clamp terminals offer stable long-term performance and are highly suitable for industrial environments where vibration, temperature changes, and continuous operation can affect electrical reliability. The CMB4 is operated using a screwdriver and provides secure tightening for safe conductor connection.
The terminal block supports conductor sizes from 0.2 mm² to 4 mm² stranded wire and up to 6 mm² solid conductors, making it suitable for a wide range of industrial electrical wiring applications. It is rated for 500V operating voltage and 32A current capacity, which makes it ideal for control panels, industrial machinery, signal circuits, and automation systems.
Manufactured using high-quality polyamide insulating material, the CMB4 offers excellent dielectric insulation, heat resistance, and mechanical durability. This ensures safe electrical operation and long service life in industrial conditions where exposure to heat, vibration, and electrical stress is common. The insulated housing also reduces accidental contact risk and improves operator safety during maintenance.
Its side wire entry configuration helps improve cable routing and installation convenience in compact control cabinets and machine panels. The compact dimensions (6 mm width, 27 mm length, and 28.5 mm height) allow high-density panel wiring while maintaining a neat and organized layout.
The CMB4 is commonly used in:
With its panel mount design, feed-through electrical function, secure screw clamp connection, and compact modular construction, the CMB4 is a reliable solution for professional industrial electrical wiring applications.
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