Screw type terminal blocks
The connection technology of the screw terminals, which has been tried and tested a million times, is based on a metallic clamping body that is built into an insulating body. The stripped wire is clamped and contacted directly or indirectly by a screw. An integrated wire protection or a lift system protect the wire when it is connected.
The screw terminals are suitable for solid wires and stranded wires with end sleeves. Depending on the design, for connection cross sections of 0.08 - 4 mm². Screw terminals enable the connection of two conductors in a terminal chamber and are characterized by good contact quality with little heating.
Terminal body
The terminal bodies consist of a copper wrought alloy. The surface is galvanically nickel-plated. With the types with soldering pin, the surface is given a galvanic nickel base and tin-plated to generate high corrosion resistance and superb soldering ability. All terminal bodies are installed in the insusulation housing to ensure that they cannot be lost.
Terminal screws
The terminal screws in M2 – M4 can optionally be produced in different materials. The screws are rounded at the pressure areas, meaning that it is possible to connect the conductor without wire protection. Usually the screws are secured against unwanted loosening themselves.
Contact systems for the METZ CONNECT plug system
Lamella contacts
The lamella contacts are silver plated, optionally tinplated or gold-plated and are suitable for rounded pins. The lamella-like design of the contact bars means that currents of up to 10 A can be transferred. Even after the 100th plugging, the transfer resistance between the jack contact and the pin header is ≤ 5 mΩ.
Plug system with integrated contact
The tulip-shaped plug system is made of bronze and is suited for both round and square pins.
Wire protector and lift system
Screw type terminal block without wire protector
Screw type terminal block with wire protector
The wire protector prevents damage to the conductors during terminal connection.
Screw type terminal block with rising wire protector
Some types are equipped with a rising wire protector that works according to the principle of the lift system. When the screw is turned,
the wire protector lifts parallel to the base of the terminal body.
Screw type terminal block with lift system
Through the lift effect of the terminal body, the conductor is clamped over a large area and in parallel. A damage to the conductor by the screw is entirely eliminated here too.
Product overview
