DC lsolator Switch TDDH3

Technical Data

Core functions

Equipment inspection and maintenance guarantee: When the isolation switch is turned on, its contact position will form a clear and visible disconnect gap. This design can provide the highest level of safety protection for relevant personnel, effectively avoiding electric shock accidents and creating a safe environment for equipment inspection and maintenance work.
System operation mode switching: In complex DC distribution networks, isolation switches play an important role in circuit on-off control, enabling the operation and shutdown of equipment or lines. With this function, not only can different system operation modes be switched, but also the faulty parts can be isolated and processed.
Emergency power cut-off guarantee: In case of emergency, staff can quickly cut off the power transmission path by manually operating the isolation switch. Isolation switches can serve as reliable manual safety barriers in this scenario, providing critical support for responding to emergency situations.

Product Features

Having visible disconnection points: When the isolation switch is in the "closed" state, it can establish an insulation distance between the moving contact and the fixed contact that meets safety standards, while ensuring that the disconnection state is clear and distinguishable, allowing staff to intuitively grasp the power outage situation of the equipment.
Capable of carrying rated current: When the isolation switch is in the "ON" position, its contacts need to have reliable and continuous current carrying capacity, able to withstand the maximum continuous working current of the system during normal operation, and there will be no overheating phenomenon during operation, ensuring circuit stability.
Capable of withstanding short-term current surges: Isolation switches need to have certain dynamic and thermal stability. In the event of a short circuit in the circuit, they can withstand the current surge generated by the short circuit for a short period of time until the upstream protection device is activated and the fault is cleared. This feature ensures that the isolation switch itself is not damaged in the event of a fault.
Strictly follow the operating specifications of "no-load" or "low arc": During the operation of the isolation switch, it is strictly prohibited to perform switch operations under load. It must be carried out under conditions that meet the requirements of "no-load" or "low arc" to ensure operational safety and equipment performance.