What are the characteristics of terminal block 139?
139 terminal block It is a standard U-shaped terminal, and all U-shaped terminals of common specifications can be used in EEXe environments that meet the requirements of EN 50 019. The 139 terminal block is one of our key products; the corresponding Ex explosion-proof certification number for this component can be found under the wiring data. Similar to its sister model, which features smaller external dimensions and thinner conductors, the external dimensions of this terminal—designed for conductors with cross-sections ranging from over 0.75 to 1.5 mm²—have also been optimized.
139 terminal block
139 terminal block Scope of application: 1. Connection between neon bulbs and resistors; 2. Connection between slide switches and wires; 3. Connection to high-temperature heating elements; 4. Connection to sensitive components (such as reed switches and constant-temperature fuses); 5. Connection between transformer plugs and wires.
139 terminal block Typical characteristics:
1. The 139 terminal block can be installed on U-shaped and G-shaped rails.
2. Fully equipped with accessories such as baffles and grouping baffles.
3. Equipped with grounding terminals that have a consistent appearance;
4. It can handle special terminals such as double-layer wiring, potential distribution, and current loop testing.
To facilitate wiring connections, the component is essentially a piece of metal sealed within insulating plastic. It has holes at both ends for inserting wires and screws for tightening or loosening the connection. For example, when two wires need to be connected or disconnected occasionally, terminal blocks can be used—allowing for quick and easy disconnection at any time. Moreover, they are well-suited for interconnecting large numbers of wires. In the electrical industry, there are specialized terminal blocks and junction boxes available, each offering various types such as single-layer, double-layer, current-rated, voltage-rated, standard, and fragile-resistant models. A specific crimping area is designed to ensure reliable contact and sufficient current-carrying capacity.
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