Terminal blocks are components and systems, the main function of which is to ensure safe and secure electrical and mechanical conductor connections. The term covers all conceivable types, designs and forms of connection. From the point of view of application, the most important group of terminals is that of rail mounted modular terminal blocks.
- The current carrying bar must be made of metals which reduce electrical losses to minimum.
- Insulation material must be non-flammable and self extinguishing.
- The screw must not be loosed due to vibration.
- The current carrying bar must have such a form that the conductor has a strong contact area in the connection point.