ABB 2CDS251001R0044 S201-C4 Miniature Circuit Breaker
The ABB 2CDS251001R0044 is a miniature circuit breaker from the ABB System pro M compact S200 Series, designed to provide dependable protection for low-voltage electrical installations. With a single-pole configuration, 4A rated current and C tripping characteristic, this circuit breaker delivers reliable protection against overload and short-circuit conditions while maintaining stable operation of connected electrical equipment.
Electrical systems require effective protection devices to prevent damage caused by abnormal current conditions. Overloads, short circuits and unexpected electrical faults may result in excessive heat generation, equipment failure and system interruptions. The ABB S201-C4 is designed to detect these conditions and disconnect affected circuits efficiently, helping improve electrical safety and system reliability.
The ABB S200 Series is recognized for its compact modular construction, reliable switching performance and flexible installation design. The ABB 2CDS251001R0044 combines ABB protection technology with practical DIN rail mounting capability, making it suitable for control cabinets, distribution boards, automation equipment and auxiliary electrical circuits. :contentReference[oaicite:1]{index=1}
Product Features
- Manufacturer: ABB
- Product code: 2CDS251001R0044
- Model: S201-C4
- Product type: Miniature Circuit Breaker
- Single-pole configuration
- Rated current: 4A
- C tripping characteristic
- Thermal overload protection
- Electromagnetic short-circuit protection
- DIN rail mounting design
- Compact modular construction
- Suitable for industrial and commercial electrical applications
Technical Specifications
| Manufacturer | ABB |
|---|---|
| Product Number | 2CDS251001R0044 |
| Extended Product Type | S201-C4 |
| Series | System pro M compact S200 |
| Number of Poles | 1 Pole |
| Rated Current | 4A |
| Tripping Characteristic | C Curve |
| Rated Voltage | 230/400V AC |
| Short Circuit Breaking Capacity | 6kA |
| Mounting Type | 35mm DIN Rail |
| Protection Function | Overload and Short Circuit Protection |
Thermal and Magnetic Protection Technology
The ABB 2CDS251001R0044 uses a combination of thermal and electromagnetic release mechanisms to provide comprehensive circuit protection. The thermal release mechanism responds to continuous overload conditions by detecting excessive current levels and disconnecting the circuit when unsafe operating temperatures are reached.
The electromagnetic release mechanism provides rapid interruption during short-circuit events. When a sudden fault current occurs, the magnetic tripping system activates quickly to isolate the affected circuit. This combination of protection technologies allows the ABB S201-C4 to provide reliable performance in various low-voltage electrical applications.
C Curve Tripping Characteristic
The C tripping characteristic of the ABB 2CDS251001R0044 is designed for electrical circuits where moderate startup currents may occur during normal equipment operation. This characteristic provides a balanced response between allowing temporary current peaks and maintaining dependable protection against overload and short-circuit conditions.
The ABB S201-C4 with C curve protection is suitable for many general-purpose electrical applications, including lighting circuits, control circuits, power supplies and various industrial auxiliary systems. The controlled tripping response helps prevent unnecessary interruptions caused by normal operating current variations while still ensuring effective fault protection.
By combining reliable fault detection with stable operational performance, the ABB 2CDS251001R0044 provides an efficient protection solution for electrical circuits that require accurate current control and dependable switching capability.
Installation and System Integration
The ABB 2CDS251001R0044 is designed for installation on a standard 35 mm DIN rail, allowing easy integration into electrical distribution boards, automation cabinets and industrial control panels. The compact modular structure of the ABB S200 Series helps optimize installation space while providing convenient access for wiring and maintenance operations.
The standardized dimensions of the S200 Series allow the ABB S201-C4 to be combined with other modular protection and control components. This flexibility enables engineers and system integrators to design customized low-voltage electrical systems according to different application requirements.
Proper installation practices are essential for achieving reliable long-term operation. Correct conductor selection, secure terminal connections and suitable environmental conditions help ensure stable electrical performance and reduce potential operational issues.
Industrial and Commercial Applications
The ABB 2CDS251001R0044 is widely used in industrial automation systems, commercial electrical installations and low-voltage distribution applications. Its compact single-pole design makes it suitable for individual circuit protection where reliable interruption and accurate current protection are required.
In industrial control systems, sensitive components such as programmable controllers, sensors, communication modules, relays and power supplies require effective protection against electrical faults. The ABB S201-C4 helps protect these components by isolating abnormal circuits and reducing the risk of electrical damage.
The circuit breaker is also suitable for auxiliary power circuits, building control systems, instrumentation equipment and technical installations. Its compact dimensions and reliable operating characteristics make it a practical choice for electrical cabinets where space efficiency and protection performance are important.
Advantages of ABB 2CDS251001R0044
- Reliable protection against overload and short-circuit conditions.
- C curve characteristic suitable for general electrical loads.
- Compact single-pole modular design.
- Easy installation on standard DIN rails.
- Stable mechanical and electrical switching performance.
- Thermal and magnetic protection integrated in one device.
- Suitable for automation, commercial and industrial applications.
- Designed according to international electrical standards.
Maintenance and Operational Reliability
The ABB 2CDS251001R0044 is designed for reliable long-term operation with minimal maintenance requirements. However, regular inspection of electrical systems is recommended to ensure continued safety and stable performance.
Maintenance personnel should periodically inspect terminal connections, check the physical condition of the circuit breaker and verify that the operating handle functions correctly. Electrical panels should remain clean and properly ventilated to maintain suitable operating conditions.
When an electrical fault occurs, the clear switching position of the miniature circuit breaker allows technicians to quickly identify the affected circuit. This improves troubleshooting efficiency and helps reduce downtime during maintenance activities.
Frequently Asked Questions
What is ABB 2CDS251001R0044 used for?
ABB 2CDS251001R0044 is a single-pole miniature circuit breaker designed for overload and short-circuit protection in low-voltage electrical systems. It is commonly used in automation panels, distribution boards, control circuits and auxiliary electrical applications.
What does S201-C4 mean?
S201-C4 identifies the product configuration within the ABB S200 Series. S201 represents a single-pole circuit breaker, C indicates the tripping characteristic and 4 represents the rated current of 4 amperes.
Why is the C curve characteristic widely used?
The C curve characteristic provides a balanced response for circuits with moderate startup currents. It allows normal temporary current variations while maintaining reliable protection against overload and short-circuit faults.
How is ABB S201-C4 installed?
The ABB S201-C4 is installed on a standard 35 mm DIN rail inside electrical distribution panels, control cabinets and automation systems. Correct wiring and installation procedures ensure safe and reliable operation.
Conclusion
The ABB 2CDS251001R0044 S201-C4 miniature circuit breaker is a dependable solution for low-voltage electrical protection applications. With its single-pole configuration, 4A rated current, C tripping characteristic and thermal-magnetic protection technology, it provides effective protection against overload and short-circuit conditions.
Combining ABB engineering quality, compact modular construction and flexible DIN rail installation, the ABB S201-C4 is suitable for industrial automation, commercial electrical systems and technical installations requiring reliable circuit protection. Its stable operating performance, practical design and advanced protection technology make it a valuable component for modern electrical distribution systems.
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