ABB 2CDS252001R0337 S202-K4 Miniature Circuit Breaker
The ABB 2CDS252001R0337 is a miniature circuit breaker from the ABB System pro M compact S200 Series, designed to provide reliable electrical protection for modern low-voltage distribution systems. With a two-pole configuration, 4A rated current and K tripping characteristic, this circuit breaker is developed for applications requiring accurate protection performance and improved tolerance against temporary current peaks.
Electrical installations in industrial and commercial environments require protection devices that can respond quickly to abnormal current conditions while maintaining stable operation during normal load conditions. The ABB S202-K4 combines thermal and magnetic protection technologies to protect electrical circuits against overloads and short-circuit faults, helping improve system safety and operational reliability.
The ABB S200 Series is widely used in modular electrical distribution applications because of its compact design, standardized installation method and dependable performance. The ABB 2CDS252001R0337 provides an efficient solution for protecting control circuits, automation equipment, auxiliary power systems and other low-voltage electrical applications where reliable circuit interruption is required. :contentReference[oaicite:1]{index=1}
Product Features
- Manufacturer: ABB
- Product code: 2CDS252001R0337
- Model: S202-K4
- Product type: Miniature Circuit Breaker
- Two-pole configuration
- Rated current: 4A
- K tripping characteristic
- Thermal overload protection
- Electromagnetic short-circuit protection
- DIN rail mounting design
- Current-limiting protection technology
- Suitable for industrial and commercial applications
Technical Specifications
| Manufacturer | ABB |
|---|---|
| Product Number | 2CDS252001R0337 |
| Extended Product Type | S202-K4 |
| Series | System pro M compact S200 |
| Number of Poles | 2 Pole |
| Rated Current | 4A |
| Tripping Characteristic | K Curve |
| Rated Voltage | 230/400V AC |
| Breaking Capacity | 6kA |
| Mounting Type | 35mm DIN Rail |
| Protection Function | Overload and Short Circuit Protection |
Thermal and Magnetic Protection Technology
The ABB 2CDS252001R0337 uses a combination of thermal and electromagnetic release mechanisms to provide comprehensive protection for electrical circuits. The thermal release mechanism responds to prolonged overload conditions by disconnecting the circuit when excessive current creates unsafe operating temperatures. This helps protect conductors and connected equipment from overheating caused by continuous overcurrent.
The electromagnetic release mechanism provides rapid response during short-circuit conditions. When a sudden fault current occurs, the magnetic tripping system operates quickly to isolate the affected circuit. This dual protection method allows the ABB S202-K4 to deliver dependable performance in applications where electrical safety and system availability are important.
K Curve Tripping Characteristic
The K tripping characteristic of the ABB 2CDS252001R0337 is designed for electrical circuits where higher temporary startup currents may occur during normal equipment operation. This characteristic allows the circuit breaker to withstand short-duration current peaks while maintaining effective protection against overload and short-circuit faults.
Compared with standard protection characteristics, K curve breakers are particularly suitable for applications involving motors, transformers, power supplies and other electrical equipment that may generate higher initial current demand during startup. This feature helps reduce unnecessary circuit interruptions and improves operational continuity in industrial environments.
By combining a controlled response to temporary current peaks with rapid fault interruption capability, the ABB S202-K4 provides a balanced protection solution for electrical systems requiring both reliability and flexibility.
Installation and System Integration
The ABB 2CDS252001R0337 is designed for installation on standard 35 mm DIN rails, allowing quick integration into electrical distribution boards, automation cabinets and industrial control panels. Its modular dimensions support efficient cabinet design while providing convenient access for wiring, inspection and maintenance.
The compact construction of the ABB S200 Series helps reduce the space required inside electrical enclosures without compromising protection performance. This makes the breaker suitable for applications where panel size optimization and reliable circuit protection are both important requirements.
Correct installation procedures, including appropriate conductor selection and secure terminal connections, ensure stable electrical performance throughout the operating life of the device. Proper installation also helps reduce contact resistance and unnecessary temperature increases within the electrical assembly.
Industrial Applications
The ABB 2CDS252001R0337 is widely used in industrial automation systems, machinery control panels, commercial electrical installations and low-voltage distribution equipment. Its reliable protection characteristics make it suitable for applications where electrical circuits require dependable monitoring and interruption of abnormal current conditions.
In automation environments, electrical components such as programmable controllers, sensors, communication modules and power supplies require effective protection against electrical faults. The ABB S202-K4 provides an important protection layer by isolating faulty circuits and helping prevent damage to connected equipment.
The breaker is also suitable for auxiliary circuits, control power systems, instrumentation equipment and technical installations. Its compact modular structure allows integration into various electrical designs while maintaining ABB’s recognized standards for reliability and performance.
Advantages of ABB 2CDS252001R0337
- Reliable protection against overload and short-circuit conditions.
- K curve characteristic suitable for equipment with startup current peaks.
- Compact two-pole design for efficient electrical cabinet installation.
- DIN rail mounting simplifies system integration.
- Stable switching performance during repeated operation.
- Suitable for industrial automation and commercial applications.
- Thermal and magnetic protection in one compact device.
- Designed according to international electrical protection standards.
Maintenance and Long-Term Reliability
The ABB 2CDS252001R0337 is engineered for dependable long-term operation with minimal maintenance requirements. However, regular inspection of electrical systems is recommended to maintain safe and reliable performance.
Maintenance personnel should periodically check terminal tightness, inspect the physical condition of the circuit breaker and verify that the operating mechanism functions correctly. Electrical cabinets should also be maintained in a clean and properly ventilated condition to prevent environmental factors from affecting equipment performance.
When an electrical fault occurs, the visible switching position of the miniature circuit breaker helps technicians quickly identify the affected circuit. This improves troubleshooting efficiency and reduces the time required to restore normal system operation.
Frequently Asked Questions
What is ABB 2CDS252001R0337 used for?
ABB 2CDS252001R0337 is a two-pole miniature circuit breaker designed for overload and short-circuit protection in low-voltage electrical systems. It is commonly used in industrial automation panels, control circuits, distribution boards and commercial electrical installations.
What does S202-K4 mean?
S202-K4 identifies the product configuration within the ABB S200 Series. S202 represents a two-pole circuit breaker, K indicates the tripping characteristic and 4 represents the rated current of 4 amperes.
Why choose a K curve circuit breaker?
A K curve circuit breaker is suitable for electrical circuits with higher temporary startup currents. It allows normal equipment starting currents while still providing reliable protection against overload and short-circuit conditions.
How is ABB 2CDS252001R0337 installed?
The breaker is installed on a standard 35 mm DIN rail inside electrical distribution panels, control cabinets and automation systems. Proper installation and wiring practices are required to ensure safe operation.
Conclusion
The ABB 2CDS252001R0337 S202-K4 miniature circuit breaker provides reliable protection for modern low-voltage electrical systems. With its two-pole configuration, 4A rated current, K tripping characteristic and thermal-magnetic protection technology, it delivers effective protection against overload and short-circuit conditions.
Combining ABB engineering quality, compact DIN rail installation and flexible application capability, the ABB S202-K4 is an excellent choice for industrial automation, commercial electrical distribution and control system applications. Its reliable operating performance and advanced protection technology help improve electrical safety, equipment protection and overall system reliability.
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