ABB Electrical S281-Z2A Miniature Circuit Breaker- Single Unit

ABB Electrical S281-Z2A Miniature Circuit Breaker- Single Unit

Basic Parameters

Rated voltage: Suitable for AC 50/60Hz circuits with a rated voltage of 400V, and its rated working voltage is 400V according to IEC 60947-2.

Rated current: rated current is 2A.

Short-circuit breaking capacity: the rated short-circuit breaking capacity is 15kA at 230V and 15kA at 400V; the rated conditional short-circuit current is 10kA at 230V and 10kA at 400V.

Dimensions and weight: width 0.018m, height 0.090m, depth 0.058m, net weight 0.137kg.

Functional Features

Protection Function:

Overload protection: When the current in the circuit exceeds the rated current for a long time, the bimetal in the thermal release element will be bent and deformed due to heat, which will push the release mechanism to act, thus cutting off the circuit and effectively preventing the line and equipment from being damaged due to overload.

Short-circuit protection: once a short-circuit fault occurs in the circuit, the instantaneous generation of a huge short-circuit current will make the electromagnetic detacher act quickly, generating a strong electromagnetic force to attract the armature and drive the detaching mechanism to quickly cut off the circuit, limiting the impact of the fault to a minimum range to protect the equipment and personnel safety.

Withdrawal Characteristics: The circuit breaker adopts Z-type withdrawal characteristic curve, which is more sensitive and precise in response to fault current, and can better adapt to the protection needs of different types of loads, and effectively avoid the damage caused by overload or short-circuit to the equipment.

Installation: DIN rail mounting, this installation method is simple and convenient, can be easily installed on the standard DIN rail, in the distribution cabinet and other electrical equipment for flexible layout, saving installation space and time, improve installation efficiency.

Fields of application

Industrial field: It can be used in factories for the distribution protection of various electrical equipment, such as motors, transformers, distribution cabinets and other branch circuit protection, to prevent equipment damage and production interruption due to circuit failure, to ensure the continuity and stability of the production process.

Commercial places: It is suitable for the power distribution protection of lighting system, socket circuit, air-conditioning system in shopping malls, office buildings, hotels, etc. to ensure the reliability and safety of power supply and provide stable power support for commercial operations.

Residential: In the family electricity, it can protect all kinds of electrical equipment and lighting circuits, preventing electrical fires and other safety accidents caused by overloading or short-circuiting, and guaranteeing the safety of residents' electricity consumption.

Product Benefits

Flexible Configuration:

Supports a variety of configuration options, which can be configured to different input or output modes according to specific application requirements to meet different control needs.

High performance:

Featuring fast response and high accuracy, it can monitor and control digital signals in real time to ensure the stability and reliability of the system.

Equipped with an on-board 100Mbit/s Ethernet connection, communication between the controller, operator station and engineering workstation is faster and more reliable.

Modular design:

Adopting modular design, it is easy to install, maintain and expand, and can flexibly cope with control systems of different scale and complexity.

Communication interface:

Support common communication interfaces, such as Profibus, Modbus, etc., which can exchange data and communicate with other devices and systems.

Reliable and stable:

As a well-known brand of industrial automation, ABB's products have excellent quality and stability, ensuring stable operation of the equipment for a long time.

Memory & Security:

With 10MB of memory, of which 2MB is for battery backup, to ensure the safety of data and stable operation of the system.

Provides a key lock function to prevent unauthorised downloading of applications and firmware by locking the controller, enhancing the security of the system.

Compact Front Panel Display:

Equipped with a small front panel display that visually shows status and diagnostic information for easy monitoring and maintenance of the unit.