Abb 768417

The ABB S800 Series is a high short-circuit breaking capacity circuit breaker designed for low-voltage switchgear. It is particularly suitable for scenarios with high requirements for short-circuit protection, such as data centers. Adopting a dual arcing contact structure, the product can effectively limit the passing energy and peak current generated during short circuits, significantly improving the safety and reliability of the entire power system.

Product Features

• High Breaking Capacity: The rated short-circuit breaking capacity reaches up to 36kA (Type N) and 50kA (Type S).
• Dual Arcing Contact Structure: Effectively limits the passing energy and peak current under short-circuit conditions.
• Wide Voltage Range: Supports rated operating voltages of 400/690V AC and 250/750V DC.
• Flexible Rated Current: Covers a current range of 0.5A to 63A, with a maximum rated current of 125A.
• Compact Design: Featuring a miniaturized size, it is ideal for installation in space-constrained scenarios such as wind power generation systems.
• Environmental Certification: Compliant with the ISO 14001 environmental management system standard.

Technical Parameters

Parameter Item	Specification Value
Rated Operating Voltage	230/400V AC (maximum 1150V AC)
Rated Current	0.5A - 125A
Short-circuit Breaking Capacity	36kA (Type N) / 50kA (Type S)
Operating Temperature Range	-25°C to +60°C
Ingress Protection Rating	IP40
Maximum Operating Current	63A
Mechanical Shock Resistance	IK08
Flame Retardant Rating	650°C/850°C

Structure & Composition

The ABB S800 Series circuit breaker consists of four core components, ensuring stable performance and flexible application:

• Circuit Breaker Main Body: Equipped with a professional dual arcing contact structure and high-precision tripping device to realize reliable short-circuit and overload protection.
• Wiring Terminals: Standardized terminal design for stable and safe electrical connection.
• Installation Accessories: Complete DIN rail mounting fittings for quick and fixed installation.
• Protection Modules: Optional extended modules including motor protection and residual current leakage protection to meet diverse application needs.

Application Fields

With excellent protection performance and strong environmental adaptability, the product is widely used in multiple industries and scenarios:

• Wind Power Generation: Special low-voltage protection solution for wind power equipment systems.
• Data Centers: Applied to the protection of rack PDU power distribution units to ensure stable power supply for server equipment.
• Industrial Power Distribution: Suitable for various types of low-voltage power distribution systems in industrial production sites.
• Commercial Buildings: Provides reliable electrical safety protection for building power supply systems.
• Other Industrial Fields: Widely applicable to steel, textile, papermaking and other traditional industrial manufacturing industries.

Installation & Maintenance

Installation Requirements

• Operating and installation temperature: -25°C to +60°C
• Protection grade: IP40
• Installation method: DIN rail snap-on installation, fast and convenient
• Cable entry: Knockout type cable entry design

Maintenance Suggestions

• Regularly check the tightness of wiring terminals to avoid poor contact caused by loose connections.
• Inspect the equipment shell regularly to confirm that the IP40 protection performance is not damaged.
• Carry out performance tests in accordance with the manufacturer’s official recommended cycle to ensure protective performance.
• Ensure that the ambient temperature and humidity of the installation site are within the allowable operating range of the equipment.

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