The CM4SYG is a 4 sq.mm panel mount spring clamp terminal block in yellow-green colour, specially designed for industrial control panels, automation systems, machine wiring, switchgear assemblies, and electrical grounding applications. This terminal block is widely used in applications where secure conductor connection, vibration-resistant clamping, and grounding circuit identification are essential.
The yellow-green colour (YG variant) is generally used for earth/ground circuit identification in industrial electrical systems. In control panels and automation cabinets, grounding circuits play a critical role in ensuring equipment safety, leakage current dissipation, and operator protection. The colour-coded CM4SYG helps electricians quickly identify grounding-related wiring, reducing maintenance time and improving panel safety.
Unlike conventional screw-type terminal blocks, the CM4SYG uses spring clamp connection technology, which provides constant conductor pressure and secure electrical contact without the need for periodic screw tightening. This makes it ideal for industrial environments where vibration, temperature changes, and continuous operation can affect traditional wire connections. The spring clamp system ensures stable conductor retention and reduces the risk of loose wiring or electrical faults.
One of the biggest advantages of the CM4SYG is its compact panel mount design. In industrial electrical cabinets where space optimization is important, this terminal block provides reliable feed-through wiring in a slim and modular structure. Multiple terminal blocks can be grouped together to create organized terminal assemblies for control, signal, power, or grounding circuits.
The side wire entry configuration improves cable routing and installation convenience in compact control panels. This design allows easier conductor insertion and supports neat panel wiring layouts, especially in automation systems, machine control cabinets, and instrumentation panels.
Manufactured using high-grade polyamide insulating material, the CM4SYG offers excellent dielectric insulation, heat resistance, and mechanical durability. It is suitable for long-term industrial use where exposure to heat, electrical stress, and continuous operation is common. The insulated housing also improves operator safety by reducing accidental contact risk.
The terminal block supports conductor sizes from 0.2 mm² to 4 mm² (24–10 AWG) and is rated for 630V voltage and 32A current capacity, making it suitable for industrial control circuits, grounding systems, machine wiring, PLC panels, and automation applications. The 6KV surge voltage rating further improves electrical reliability in industrial environments.
Its spring clamp feed-through function allows efficient conductor-to-conductor continuity while ensuring secure clamping and low maintenance operation. The compact dimensions (7 mm width, 23 mm height, and 33.7 mm length) make it ideal for space-saving industrial panel installations.
The CM4SYG is commonly used in:
With its yellow-green grounding identification colour, spring clamp technology, compact panel mount design, and industrial-grade durability, the CM4SYG is an ideal terminal block solution for professional industrial electrical installations.
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