2CDS271565R0157 ABB S201MTR-K0.5 DC 0.5A 1P Type K 10kA DC Miniature Circuit Breaker

Why Choose the ABB S201MTR-K0.5 DC Miniature Circuit Breaker?

The ABB S201MTR-K0.5 DC is a compact single-pole DC miniature circuit breaker (MCB) designed to protect low-current electrical circuits against overload and short-circuit conditions. With ABB order code 2CDS271565R0157, this device forms part of ABB's specialist DC / traction miniature circuit breaker portfolio for demanding industrial and transportation electrical systems.

Featuring a 0.5 A rated current, Type K tripping characteristic and 10 kA short-circuit rating, the S201MTR-K0.5 DC provides dependable overcurrent protection for sensitive low-current DC circuits. The Type K characteristic is suitable for loads that can experience relatively high starting or inrush currents while still requiring effective overload and short-circuit protection.

Its compact 1-pole modular configuration makes the S201MTR-K0.5 DC suitable for installation in distribution assemblies and control panels where space-efficient DC circuit protection is required. The low 0.5 A rating makes it particularly useful for auxiliary, signalling, control and instrumentation circuits within industrial and traction-related electrical systems.

Key Advantages

• Dedicated miniature circuit breaker for DC applications.
• 0.5 A rated current for sensitive low-current circuits.
• Type K tripping characteristic suitable for loads with elevated starting or inrush currents.
• High 10 kA short-circuit rating.
• Compact single-pole configuration for space-efficient installations.
• Provides overload and short-circuit protection for connected conductors and equipment.
• Modular format for straightforward integration into electrical distribution and control assemblies.
• Designed for demanding DC and traction applications.

Key Features

• ABB S201MTR DC miniature circuit breaker.
• 0.5 A nominal current.
• 1-pole configuration.
• Type K characteristic.
• 10 kA short-circuit rating.
• Overload and short-circuit circuit protection.
• Designed specifically for direct-current applications.
• Compact modular construction for electrical panels.
• ABB order code 2CDS271565R0157.

Reliable Protection for Low-Current DC Circuits

Miniature circuit breakers such as the ABB S201MTR-K0.5 DC automatically interrupt excessive current caused by overload or short-circuit conditions. This helps protect conductors and connected electrical equipment from damaging overcurrents while providing resettable circuit protection once the cause of a fault has been identified and corrected.

The Type K characteristic is intended for circuits where connected equipment can produce elevated transient currents during energisation. This makes the S201MTR-K0.5 DC suitable for low-current industrial control and auxiliary circuits where tolerance of normal inrush currents must be combined with dependable overcurrent protection.

Typical Applications

• Industrial DC control circuits.
• Traction and transportation electrical systems.
• DC auxiliary and signalling circuits.
• Industrial automation and control panels.
• Instrumentation and low-current equipment circuits.
• Electrical distribution and protection assemblies.
• Commercial and industrial DC installations.