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2CDS272527R0578 ABB SU202DC-Z50 MCB 14 kA 2P Type Z 50 A
ABB SU202DC-Z50 is a 50 A two-pole Type Z DC miniature circuit breaker with a 14 kA short-circuit rating, designed for reliable overload and short-circuit protection in DC, traction and industrial electrical systems.
£193.10
Why Choose the ABB SU202DC-Z50 MCB?
The ABB SU202DC-Z50 is a high-performance two-pole DC miniature circuit breaker (MCB) designed to provide reliable overload and short-circuit protection in direct-current electrical systems. Identified by ABB order code 2CDS272527R0578, it combines a 50 A rated current, Type Z tripping characteristic and 14 kA short-circuit rating for demanding DC and traction applications.
As part of the ABB SU200DC series, the SU202DC-Z50 uses thermal and electromagnetic tripping to protect circuits against sustained overloads and short circuits. Its sensitive Z characteristic is particularly suited to circuits and connected equipment requiring a relatively low instantaneous magnetic trip threshold.
The two-pole configuration provides coordinated protection within DC circuits, while the compact modular construction supports straightforward integration into electrical distribution boards and control panels. With its 50 A rating and robust fault-current capability, the SU202DC-Z50 is suitable for DC distribution, auxiliary power, industrial control and transportation electrical systems.
Key Advantages
- Purpose-designed miniature circuit breaker for DC applications.
- 50 A rated current for DC distribution and equipment circuits.
- Two-pole configuration for coordinated DC circuit protection.
- Type Z tripping characteristic for sensitive magnetic protection.
- 14 kA short-circuit rating for robust fault protection.
- Thermal and electromagnetic tripping provides dependable overload and short-circuit protection.
Key Features
- ABB SU200DC series.
- 50 A rated current.
- 2-pole configuration.
- Z tripping characteristic.
- 14 kA short-circuit rating.
- Designed for DC circuit protection.
- Thermal overload protection.
- Electromagnetic short-circuit protection.
- Compact modular construction for electrical distribution equipment.
- Suitable for DIN-rail installation.
Reliable Protection for Sensitive DC Circuits
DC miniature circuit breakers protect conductors and connected equipment by automatically interrupting current when overload or short-circuit conditions occur. The combination of thermal and electromagnetic tripping enables the ABB SU202DC-Z50 to respond to both sustained overcurrents and rapidly developing electrical faults.
The Type Z characteristic provides sensitive instantaneous protection, making the SU202DC-Z50 suitable for circuits where a relatively low magnetic trip threshold is required. Combined with its two-pole configuration and 14 kA short-circuit rating, it provides compact and dependable protection for DC distribution, traction and industrial electrical systems.
Typical Applications
- DC electrical distribution systems.
- Railway and traction auxiliary circuits.
- Industrial control and automation panels.
- Sensitive electrical equipment circuits.
- DC power and auxiliary systems.
- Machinery and industrial electrical installations.
Technical Specifications
| Series | SU200DC |
|---|---|
| ABB order code | 2CDS272527R0578 |
| Product group | DC / Traction MCB |
| Product type | DC miniature circuit breaker (MCB) |
| Rated current | 50 A |
| Number of poles | 2 |
| Tripping characteristic | Type Z |
| Short-circuit rating | 14 kA |
| Protection function | Overload and short-circuit protection |
| Overload tripping mechanism | Thermal |
| Short-circuit tripping mechanism | Electromagnetic |
| Mounting type | DIN rail |
Frequently Asked Questions
What is the ABB SU202DC-Z50 used for?
The ABB SU202DC-Z50 is a two-pole miniature circuit breaker designed to provide overload and short-circuit protection for DC electrical circuits, including industrial, control and traction applications.
What is the rated current of the ABB SU202DC-Z50?
The SU202DC-Z50 has a rated current of 50 A.
What tripping characteristic does the SU202DC-Z50 use?
The SU202DC-Z50 uses a Type Z tripping characteristic, providing sensitive magnetic protection for circuits requiring a relatively low instantaneous trip threshold.
What is the short-circuit rating of the ABB SU202DC-Z50?
The SU202DC-Z50 has a specified 14 kA short-circuit rating.
How does the ABB SU202DC-Z50 protect a circuit?
The breaker combines thermal overload protection with electromagnetic short-circuit protection to protect conductors and connected equipment against overcurrent faults.
Trusted ABB DC Circuit Protection
ABB SU200DC miniature circuit breakers provide dependable overload and short-circuit protection for DC distribution, industrial control, automation and transportation electrical systems where compact and reliable circuit protection is essential.
