2CDS272527R0377 ABB SU202DC-K6 MCB 14 kA 2P Type K 6 A

Why Choose the ABB SU202DC-K6 MCB?

The ABB SU202DC-K6 is a high-performance two-pole DC miniature circuit breaker (MCB) designed to provide dependable overload and short-circuit protection in direct-current electrical systems. Identified by ABB order code 2CDS272527R0377, it combines a 6 A rated current, Type K tripping characteristic and 14 kA short-circuit rating for demanding DC and traction applications.

As part of the ABB SU200DC series, the SU202DC-K6 uses thermal and electromagnetic tripping to protect circuits against sustained overloads and short circuits. Its K characteristic is particularly suitable for loads that can produce elevated starting or inrush currents, providing effective circuit protection while reducing unwanted tripping during normal equipment start-up.

The two-pole configuration provides coordinated protection within DC circuits, while the compact modular construction supports straightforward installation in electrical distribution boards and control panels. With its 6 A rating and robust fault-current capability, the SU202DC-K6 is well suited to auxiliary power, industrial control, automation and transportation electrical systems.

Key Advantages

• Purpose-designed miniature circuit breaker for DC applications.
• 6 A rated current for low-current electrical circuits.
• Two-pole configuration for coordinated DC circuit protection.
• Type K tripping characteristic suitable for loads with elevated starting currents.
• 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.
• 6 A rated current.
• 2-pole configuration.
• K 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 DC Electrical Systems

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-K6 to respond to both sustained overcurrents and rapidly developing electrical faults.

The Type K characteristic makes the SU202DC-K6 particularly useful for circuits where equipment can draw increased current during energisation or start-up. Combined with its two-pole configuration and 14 kA short-circuit rating, it provides compact and dependable protection for DC distribution, traction and industrial control systems.

Typical Applications

• DC electrical distribution systems.
• Railway and traction auxiliary circuits.
• Industrial control and automation panels.
• Circuits with elevated starting or inrush currents.
• DC power supplies and auxiliary systems.
• Machinery and equipment control circuits.