2CDS271334R0155 ABB ST201M-B15 15A 1P B Curve 15kA Miniature Circuit Breaker

Why Choose the ABB ST201M-B15 Miniature Circuit Breaker?

The ABB ST201M-B15 is a high-performance single-pole miniature circuit breaker (MCB) / supplementary protector designed to provide reliable overload and short-circuit protection in industrial and commercial electrical systems. With ABB order code 2CDS271334R0155, it forms part of the ABB ST 200 M series of modular circuit protection devices.

Designed for applications requiring dependable circuit protection in a compact DIN-rail format, the ST201M-B15 combines thermal and magnetic tripping to protect electrical equipment and conductors against overload and short-circuit conditions. Its B tripping characteristic makes it particularly suitable for circuits with relatively low starting and inrush currents.

The ST201M-B15 has a rated current of 15 A, a single-pole configuration and a 15 kA short-circuit breaking capacity. Its UL 1077 classification supports use as a supplementary protector within electrical equipment, while its compact modular construction enables straightforward integration into industrial control panels, machinery and electrical distribution assemblies.

Key Advantages

• Compact single-pole miniature circuit breaker for supplementary circuit protection.
• 15 A rated current suitable for industrial electrical and control circuits.
• B tripping characteristic suitable for circuits with relatively low starting and inrush currents.
• 15 kA short-circuit breaking capacity for demanding protection applications.
• UL 1077 supplementary protector classification.
• DIN-rail modular construction simplifies integration into electrical control and distribution panels.

Key Features

• ABB ST 200 M series miniature circuit breaker.
• 15 A rated current.
• Single-pole (1P) configuration.
• B-curve tripping characteristic.
• 15 kA short-circuit breaking capacity.
• UL 1077 supplementary protector.
• Thermal-magnetic protection against overload and short-circuit conditions.
• Compact modular design for DIN-rail installation.

Reliable Circuit Protection for Industrial Systems

Miniature circuit breakers such as the ABB ST201M-B15 provide automatic protection against overload and short-circuit conditions. When current exceeds the permitted operating range, the thermal-magnetic tripping mechanism disconnects the protected circuit, helping protect connected wiring and electrical equipment from damaging overcurrent conditions.

The ST 200 M series is designed for industrial and commercial applications where compact modular protection and dependable switching performance are required. The ST201M-B15's 15 A rating and B tripping characteristic make it particularly suitable for circuits with comparatively low inrush currents, while its UL 1077 classification supports use as a supplementary protector within electrical equipment.

Typical Applications

• Industrial control panels and automation systems.
• Machine control and auxiliary circuits.
• Electrical equipment with relatively low starting currents.
• Control, resistive and general-purpose loads where a B-curve characteristic is appropriate.
• Supplementary protection within electrical equipment.
• Commercial and industrial electrical distribution assemblies.