Description
The ABB ZM-40-PKZ2 protective switch has the following characteristics: Functional Features Overload Protection: When the current in the circuit exceeds the rated current set by the switch, the switch can automatically cut off the circuit in a timely manner to prevent electrical equipment from being damaged due to overload. Short-circuit Protection: Once a short-circuit fault occurs in the circuit, generating a huge short-circuit current, the ABB ZM-40-PKZ2 can act quickly and cut off the circuit at a very fast speed to avoid serious damage to the equipment and lines caused by the short-circuit current. Ground Fault Protection: When a ground fault occurs in the circuit, the switch will quickly cut off the current to prevent the current from flowing to the ground and protect personal safety.
Structural Design
Operating Mechanism: It is used for manually controlling the closing and opening of the switch. Users can achieve the on-off of the circuit through the operating handle.
Contacts: The closing and opening of the circuit are achieved through the suction and disconnection of the contacts, and the conduction and disconnection of the circuit are completed in normal and faulty states.
Electromagnetic Coil: When the current flows through it, an electromagnetic field is excited to control the closing of the switch; when a fault occurs or the current needs to be cut off, the electromagnetic coil discharges and disconnects the contacts.
Load-bearing Components: They support the entire switch structure, making the switch stable and durable, and ensuring reliable operation under various working conditions.
Application Scenarios
Industrial Field: It is widely used in occasions such as motor control centers and switchgear cabinets to control and protect the operation of important equipment such as motors and transformers. In automated production lines, it can ensure the start-stop and protection control of a large number of motors. Once a motor fails, it can quickly cut off the circuit to prevent the fault from expanding.
Construction Field: In the power supply and distribution system of buildings, it can serve as the main switch for equipment such as distribution boxes and switchboards, providing reliable power control and protection for various electrical equipment such as lighting, sockets, and air conditioners, and ensuring the safety of electricity use in buildings.
Infrastructure Field: It plays an important role in places with extremely high requirements for power supply reliability, such as airports, docks, hospitals, and data centers. For example, in data centers, it can protect key equipment such as servers from the impact of power failures and ensure the stability and continuity of power supply.
Main brands include: ABB, Bailey, GE, FOXBORO, Invensys TRICONEX, Bentley BENTLY, A-B Rockwell, EMERSON EMERSON, B&R, MOTOROLA, FUANC, REXROTH, KUKA, HONEYWELL, NI, DEIF, Yokogawa, WOODWARD WOODWARD, Ryan, SCHNEIDER SCHNEIDER, Yaskawa, MOOG, EPRO, PROSOFT and other major brands
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