2CDS272334R0074 ABB ST202M-C7 Miniature Circuit Breaker 15kA 2P C 7A UL 1077

Why Choose the ABB ST202M-C7 Miniature Circuit Breaker?

The ABB ST202M-C7 is a compact and reliable two-pole miniature circuit breaker (MCB) designed to provide supplementary overcurrent and short-circuit protection in industrial, commercial and machine-building electrical systems. As part of the ABB System pro M compact ST200M series, it combines a C tripping characteristic with a 7 A rated current for dependable protection of control, auxiliary and general-purpose electrical circuits.

Designed for applications requiring UL 1077 supplementary protection, the ST202M-C7 provides two-pole circuit protection in a compact DIN rail format. Its C tripping characteristic accommodates moderate starting and inrush currents, making it suitable for a broad range of industrial control equipment, machinery and electrical loads.

With a rated current of 7 A, a two-pole configuration and an ultimate short-circuit breaking capacity of 15 kA at 400 V AC and 125 V DC, the ST202M-C7 provides robust supplementary protection for industrial control and distribution applications. Its rated operational voltage is 400 V AC according to IEC 60947-2, while UL 1077 compliance supports use as a supplementary protector within electrical equipment.

Key Advantages

• Compact two-pole miniature circuit breaker for supplementary circuit protection.
• 7 A rated current suitable for industrial control, auxiliary and general electrical circuits.
• C tripping characteristic accommodates moderate starting and inrush currents.
• 15 kA ultimate short-circuit breaking capacity at 400 V AC and 125 V DC.
• Designed for UL 1077 supplementary protection applications.
• DIN rail mounting enables straightforward integration into industrial electrical panels and machinery.

Key Features

• ABB System pro M compact ST200M series.
• 7 A rated current.
• 2-pole configuration.
• C tripping characteristic.
• 15 kA ultimate short-circuit breaking capacity at 400 V AC and 125 V DC.
• 400 V AC rated operational voltage according to IEC 60947-2.
• 440 V rated insulation voltage.
• 4 kV rated impulse withstand voltage.
• Designed in accordance with UL 1077, CSA 22.2 No. 235 and IEC/EN 60947-2.
• Compact two-module DIN rail format for industrial control and distribution panels.

Reliable Supplementary Protection for Industrial Electrical Systems

Miniature circuit breakers such as the ABB ST202M-C7 automatically interrupt a circuit when excessive current caused by an overload or short circuit is detected. This helps protect conductors and connected electrical equipment while providing convenient resettable protection for industrial control, auxiliary and machine-building circuits.

The ST200M series is designed for demanding industrial applications where compact supplementary protection and recognised international standards are required. The C characteristic provides a practical balance between protection and tolerance of moderate transient currents, making the ST202M-C7 suitable for control equipment, machinery and a wide range of general industrial electrical loads.

Typical Applications

• Industrial machinery and electrical control panels.
• Automation and process-control equipment.
• Control and auxiliary electrical circuits.
• Circuits with moderate starting or inrush currents.
• Commercial and industrial electrical equipment.
• OEM machinery requiring UL 1077 supplementary protection.