ABB Electrical 1SCA022747R6490 OT400U03 Switch Disconnector

ABB Electrical 1SCA022747R6490 OT400U03 Switch Disconnector

Basic Parameters

Rated current: 400A.

Rated voltage: The rated working voltage is 1000V, which is suitable for many common low-voltage distribution systems, such as 380V-415V, 500V, 690V, etc. The rated current is 400A.

Short-circuit withstand current: The short-time withstand current of 15 kA rms for 1 second indicates the ability of the disconnectors to withstand short-circuit faults and ensures a certain degree of electrical stability under short-circuit conditions, providing reliable protection for the system.

Number of poles: 3-pole switch, can meet the isolation needs of three-phase circuits, in the three-phase power system, can cut off or turn on the three-phase power supply at the same time, to ensure the safety of electrical equipment repair and maintenance.

Installation: Adopting the base mounting method, it can be fixed in the electrical cabinet or other suitable positions through normal installation method to ensure the stability and reliability of the installation, which is easy to be integrated and used in all kinds of electrical equipments.

Functional characteristics

Isolation function: Its main function is to reliably isolate the part to be inspected from the power supply when the electrical equipment is being overhauled or maintained, forming an obvious disconnection point to ensure the safety of the overhaulers. When the switch is in the breaking state, it can effectively prevent the power supply from being turned on accidentally, avoiding the danger of electric shock to the maintenance personnel, and providing a safety guarantee for the overhaul and maintenance of electrical equipment.

Operation mode: The front operation mode allows the operator to operate the switch in the front of the switch, which is simple and convenient to operate and easy to master. At the same time, the operating mechanism is located at the end of the switch, which makes the operation more labour-saving and can provide more accurate operation control to ensure the reliable operation of the switch.

Safety: Equipped with padlockable handle and other safety devices, the padlock can further prevent misoperation and ensure that the disconnectors are always kept in a safe breaking state during overhaul or maintenance, increasing the safety and reliability of the equipment. In addition, the unique visual window design enables the operator to visually observe the opening and closing status of the switch without the need for additional inspection tools, improving the convenience and accuracy of operation.

Mechanical Reliability: Adopting high quality materials and advanced manufacturing process, it has high mechanical strength and stability, and can withstand frequent operation and long-term use. Its mechanical durability reaches 16,000 operating cycles, which ensures reliable performance throughout its service life and reduces equipment downtime and maintenance costs due to mechanical failures.

Electrical performance: It has good electrical insulation performance, the rated insulation voltage is 1000V, which can effectively prevent the occurrence of leakage and short-circuit faults. At the same time, the rated shock withstand voltage is 12kV, so that when it suffers from lightning strikes and other over-voltage shock, it can still maintain good insulation performance, protect electrical equipment from damage, and ensure the stable operation of the system.

Application field

Industrial field: Widely used in all kinds of industrial plants, mines, metallurgy, chemical industry and other places in the low-voltage power distribution system, used for motor, transformer, distribution cabinet and other electrical equipment for isolation and protection. For example, in the production line of a factory, when a motor needs to be overhauled, the switch can be used to isolate the motor from the power supply to ensure the safety of the overhaul work.

Commercial buildings: In the electrical systems of commercial buildings such as shopping centres, office buildings, hotels, etc., they can be used as service switches in the distribution circuits of lighting, air conditioning, lifts and other equipment. During the maintenance and overhaul of these equipments, it can reliably cut off the power supply to ensure the safety of the maintenance personnel, and at the same time, it will not affect the normal operation of other equipments.

In the field of power system: in substations, distribution rooms and other power facilities, it can be used as a disconnecting switch on the low-voltage side, which is used to isolate different electrical intervals or equipments, facilitating the overhaul and maintenance of the equipments, and improving the reliability and safety of the power system. In addition, in some small distributed power generation systems, such as solar photovoltaic power generation system, wind power generation system, etc., it can also be used for isolation and protection of the system to ensure the safe operation of power generation equipment and power grid.