The test block is used when installing three-phase meters that use electromechanical and electronic principles in their operation. It is used to disconnect or short-circuit current circuits to perform specific tasks and measurements. In everyday life, it is called a "terminal block". And it is used to display electricity metering circuits.
The terminal block for the meter provides the ability to replace the electric meter without disconnecting the voltage. It is also used to test the metering device, for which it is necessary to connect a reference or sample electricity meter without disconnecting the consumer's load. To make this possible, the connection blocks described must:
ensure connection of the reference meter; disconnect voltage circuits on a phase selected separately; disconnect current circuits; shunt (short-circuit) secondary circuits of measuring devices.
The transient test box is capable of performing its operational functions, being used for 30 years under unfavorable temperature conditions - with a temperature range from -40 to +50 degrees. It is used in electrical systems for various purposes:
The communication pad meets the following characteristics:
It is better to buy such devices in specialized stores that have the appropriate certificates. You can buy switching blocks with transparent glass for your electrical distribution board in our online store. Advantages of our offers:
This makes it possible to keep prices low while ensuring high quality products.