Single-phase metering and protection unit in metal/polycarbonate case

It is used in the final network distribution of the electric energy suppliers, in single-phase connection of individual users.

Functions

• Metering the active electrical energy
• Protection against short-circuit, overload and residual differential currents of the general supplying column for user supply
• Protection of users against industrial frequency overloads due to the accidental interruption of the null conductor
• Protection against electric shock by direct contact with the circuits and equipment from the metering and protection unit box, usually under voltage
• The possibility of re-supplying by the user in case of safe emergency stop after a  power malfunction in his installations by providing an access window at the breaker by keeping the protection standard by preventing the unauthorized person access by the supplier
• The possibility of reading the counters and, if possible, cutting the power supply by the supplier, regardless whether the user is present or not
• Protection against electric power theft or equipment destruction by offenders or unauthorized persons

Technical features:

Component parts

• Metallic or thermo-plastic polycarbonate case with transparent cover that provides the IP 54 protection standard
• Single-phase unit for metering the electric energy
• Two-pole differential automatic breaker (ld=300mA) with protection to overload, short-circuit with breaking capacity lcu=10kA
• Industrial frequency overload protection module
• Indoor electric circuits made of insulated copper conductors
• Pressure gaskets for input/output supplying cables
• Fastening accessories (poles/wall)

Operating conditions: