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2CDS271527R0318 ABB SU201DC-Z3 3 A 1P Type Z 14 kA DC Miniature Circuit Breaker
ABB SU201DC-Z3 is a 3 A single-pole Type Z DC miniature circuit breaker with 14 kA breaking capacity designed for reliable overload and short-circuit protection of sensitive DC electrical circuits.
£67.45
Why Choose the ABB SU201DC-Z3 Miniature Circuit Breaker?
The ABB SU201DC-Z3 is a specialised DC miniature circuit breaker (MCB) designed for reliable overload and short-circuit protection in demanding direct-current electrical systems. This single-pole breaker combines a 3 A rated current, Type Z tripping characteristic and 14 kA breaking capacity, making it particularly suitable for sensitive low-current circuits.
As part of ABB's DC / Traction MCB portfolio, the SU201DC-Z3 provides dependable protection for DC conductors and connected equipment. Its thermal-magnetic operating principle responds automatically to sustained overload currents and short-circuit faults, providing resettable circuit protection for industrial, transportation and control applications.
The Type Z characteristic provides sensitive magnetic tripping and is suited to circuits where rapid response to comparatively low fault currents is important. Combined with its 3 A current rating and high 14 kA short-circuit capability, the SU201DC-Z3 is well suited to electronic, control, instrumentation and other sensitive DC loads.
Key Advantages
- Specialised miniature circuit breaker for DC applications.
- 3 A rated current for low-current circuit protection.
- 14 kA breaking capacity for high short-circuit protection performance.
- Type Z tripping characteristic for sensitive electrical circuits.
- Single-pole configuration for compact circuit protection.
- Provides protection against overload and short-circuit conditions.
- Thermal-magnetic operation provides automatic, resettable protection.
- Suitable for demanding DC, traction and transportation electrical systems.
Key Features
- ABB SU201DC miniature circuit breaker.
- 3 A rated current.
- 14 kA breaking capacity.
- Type Z tripping characteristic.
- 1-pole configuration.
- Thermal-magnetic overload and short-circuit protection.
- Designed for direct-current electrical circuits.
- Suitable for sensitive electronic, control and instrumentation loads.
- Compact modular circuit-protection format.
- ABB order code 2CDS271527R0318.
Reliable Protection for Sensitive DC Circuits
The ABB SU201DC-Z3 automatically disconnects the protected circuit when excessive current results from an overload or short-circuit condition. Thermal protection responds to sustained overload currents, while magnetic protection provides rapid interruption during severe fault conditions, helping protect conductors, wiring and connected equipment from electrical damage.
The Type Z characteristic is designed for sensitive circuits requiring a comparatively low instantaneous magnetic trip threshold. This makes the SU201DC-Z3 particularly useful for electronic equipment, control circuits, instrumentation and other 3 A DC loads where rapid response to fault current is required.
Typical Applications
- DC electrical distribution systems.
- Railway and transportation electrical equipment.
- Low-current DC auxiliary circuits.
- Electronic equipment protection.
- Control and automation circuits.
- Instrumentation and monitoring systems.
- Sensitive circuits requiring a Type Z tripping characteristic.
Technical Specifications
| Order code | 2CDS271527R0318 |
|---|---|
| Product type | Miniature circuit breaker (MCB) |
| Product group | DC / Traction MCB |
| Rated current | 3 A |
| Breaking capacity | 14 kA |
| Tripping characteristic | Type Z |
| Number of poles | 1 |
| Protection function | Overload and short-circuit protection |
| Operating principle | Thermal-magnetic |
| Current type | DC |
| Application | DC distribution, control, automation and transportation electrical systems |
Frequently Asked Questions
What is the ABB SU201DC-Z3 used for?
The ABB SU201DC-Z3 is a single-pole miniature circuit breaker designed to provide overload and short-circuit protection for low-current DC circuits, including sensitive electronic, control and instrumentation applications.
What is the rated current of the SU201DC-Z3?
The SU201DC-Z3 has a rated current of 3 A.
What is the breaking capacity of the SU201DC-Z3?
The SU201DC-Z3 has a 14 kA breaking capacity, providing high short-circuit interruption capability for the protected circuit.
What does the Type Z tripping characteristic mean?
The Type Z characteristic provides sensitive magnetic tripping and is suited to electronic, control and instrumentation circuits where rapid response to comparatively low short-circuit currents is required.
What is the ABB order code for the SU201DC-Z3?
The ABB order code for the SU201DC-Z3 miniature circuit breaker is 2CDS271527R0318.
Trusted Circuit Protection from ABB
ABB DC miniature circuit breakers provide dependable overload and short-circuit protection for demanding direct-current electrical systems, combining defined tripping characteristics, compact construction and high fault-interruption capability for reliable circuit protection.
