It is crucial to note that removal of the earth connection is life-threatening in any case as there would no longer be protection against electric shock! In the case of all 3-pole plugs that conform to the standards, this earth connection has been constructed as a leading connection, which means that the earth connection closes the contact before the other two pins make power contact.Īt the same time, in most countries in the world, 2-pole mains sockets have been replaced with 3-pole earthed sockets, which can accept both 2-pole and 3-pole plugs.et-gallery-section-main. There is an exception to this, which is the Schuko plug where the earth connection is located on the side of the plug and made of metal contact surfaces. SHINING E&E has 40 years of experience in offering customers 600V 85A 3 Pole Electrical Power Terminal Block, and ensuring to meet each customers. In all plug types, this earth connection was fitted as a 3rd pin. Power Distribution Block, Dual Rated, Line Conductor Range 500-3/0, Load Range 500-3/0, 5 Ports Per Pole Line Side, 5 Ports Per Pole Load Side, 1 Pole, UL. In order to provide safety, an earth connection had to be fitted to 2-pole plugs for these devices. In most countries in the world, 2-pole mains sockets have been replaced with earthed sockets which can accept both 2-pole and 3-pole plugs.ģ-pole means that the device plug is earthed and that it normally has three pins, of which two are used to transfer the current and one is used as personal protection.Īs previously mentioned above, due to the predominance of more powerful devices in the 1930s, (normally above around 500 watts), the problem of a possible electric shock became a hazard for users. In the case of less powerful devices (normally up to around 500 watts), 2-pole connections are still the norm since these can be produced more economically. This is due to the plug pins, which are often not thick enough to continuously resist the heat caused by the higher power. Marathon 1433553 Terminal Block 3 Pole 600v 335a (1) 74.99 New 30.50 Used IPL 4-3 Polaris 14 AWG to 4 AWG Insulated Cable Connector 20. For example, if more than 2.5 amperes (in other words, more than 500 watts), are transferred through a 2-pole plug, it is possible that damage caused by smouldering or burning can occur under certain conditions. Minimum order of 1 items Multiples of 1 only Please enter a. They eliminate the need to run wires from outside power or ground. Panel Mount Barrier Terminal Block, 335 A, 600 V, 3 Pole, 1, Screw. Also known as power terminal blocks, they provide a fixed, tap-off point within enclosed equipment. In addition, 2-pole plugs are not constructed to continuously withstand high currents. Power distribution blocks split a primary power or ground source (line) into secondary outputs (load) to distribute the connection to multiple branch circuits. In addition, you realize a safe and efficient distribution of the current to the power consumers. With our A4C 6 terminal block, you get a space-saving solution that meets today's requirements. Earthed plug systems are therefore known as 3-pole systems, even though this is not quite technically correct. Increasing automation increases the need to save space in the control cabinet and to work more efficiently. They enable the safe connection of wires between circuits. This problem was solved by introducing an earth connection, mainly in the form of a 3rd pin. A terminal block is a type of insulated electrical connector that connects or secures two or more wires together. However, with the increase in more and more powerful devices, suffering from electric shock became a higher risk. BDBLHC115003, 3-Pole Power Distribution Block By Burndy Catalog ID: BDBLHC115003 Prop 65 Notice Terminal block covers, AWG 4 - 500 kcmil (Run), AWG 4 - 500 kcmil (Tap), Power Distribution Block. Originally, all electrical devices were fitted with 2-pole plugs, which means that the devices were not earthed and that all mains sockets were constructed for 2-pole plugs. 2-pole means that the device plug is not earthed and it normally has two pins that transmit electricity.
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