ABB 3VL9440-7DC30 Line protection thermal-magnetic

ABB 3VL9440-7DC30 Line protection thermal-magnetic

Product Overview

The ABB 3VL9440-7DC30 Thermo-Magnetic Line Protection Device combines the principles of both thermal and magnetic protection to provide comprehensive overload and short-circuit protection for power systems. It is suitable for power line protection in various low-voltage distribution systems, such as commercial buildings, industrial plants and residential areas.

Main Features

Thermo-magnetic protection principle:

The thermal protection part works by detecting the thermal effect of the current. When the current exceeds the rated value, the thermal element will heat up and bend, thus triggering the release mechanism.

Magnetic protection part, on the other hand, makes use of the magnetic field effect of the current, and when a short circuit occurs, the powerful magnetic field will quickly make the release mechanism act.

High precision protection:

The device has high-precision current detection capability, which can accurately judge overload and short-circuit conditions and ensure the safe operation of the power system.

Reliable and stable:

High-quality materials and advanced manufacturing process are used to ensure the reliability and stability of the product.

Strictly tested and verified to meet international standards and industry norms.

Easy to install and maintain:

Compact and easy to install, it can be easily integrated into existing electrical systems.

Clear indications and markings are provided for routine maintenance and inspection.

Multiple sizes available:

Provides a variety of rated currents and release characteristics to choose from to meet the needs of different power systems.

Technical Specifications

The following are some typical technical specifications (exact specifications may vary depending on product lot and customisation requirements):

Rated current: Depending on the specific model, usually covering several current ranges.

Rated voltage: 690V (or other rated voltages depending on product specifications).

Frequency: 50/60Hz.

Decoupling characteristics: Thermo-magnetic with overload and short-circuit protection.

Operating temperature range: -25°C to +70°C (or other temperature ranges, depending on product specifications).

Protection level: IP20 (or other protection levels, depending on product design and installation environment).

Areas of application

ABB 3VL9440-7DC30 Thermomagnetic Line Protection Device is widely used in the following areas:

Commercial buildings: such as shopping centres, office buildings, hotels, etc., used to protect power lines and equipment from overload and short-circuit faults.

Industrial plants: such as manufacturing, processing plants, chemical plants, etc., used to ensure stable and reliable power supply to production equipment.

Residential areas: used to protect power lines and distribution equipment in residential areas and improve the safety and reliability of the power system.

Maintenance and care

In order to ensure the long-term stable operation of ABB 3VL9440-7DC30 Thermomagnetic Line Protection Device, the user should carry out maintenance and repair work on a regular basis. This includes checking the appearance and connection of the device, cleaning dust and dirt, calibrating the decoupling characteristics, and replacing worn parts. Users should also follow the manufacturer's use and maintenance guidelines to avoid damage or malfunction of the device due to improper operation.

Delivery information

Export Control Regulations    ECCN : N / AL : N    

Estimated dispatch time (Working Days)    5 Day/Days    

Net Weight (kg)    1,491 Kg    

Packaging Dimension    132,50 x 246,00 x 123,00    

Package size unit of measure    MM    

Quantity Unit    1 Piece    

Packaging Quantity    1