2CDS272334R0054 ABB ST202M-C5 Supplementary Protector 5 A 2P C 15 kA UL1077

Why Choose the ABB ST202M-C5 Supplementary Protector?

The ABB ST202M-C5 is a compact two-pole miniature circuit breaker / supplementary protector designed to provide reliable overload and short-circuit protection for electrical equipment, control circuits and industrial automation systems. Part of the ABB System pro M compact ST200M series, this model combines a 5 A rated current, C tripping characteristic and UL 1077 supplementary protection classification.

The C characteristic provides thermal-magnetic protection suitable for general-purpose circuits that can experience moderate switching or starting currents. This makes the ST202M-C5 a practical choice for industrial control and equipment circuits where reliable overcurrent protection is required without unnecessary operation during normal load inrush.

With a 2-pole configuration, 5 A current rating and 15 kA interrupting rating, the ST202M-C5 provides compact supplementary protection for machinery, automation equipment and electrical control panels. Its modular DIN-rail format supports straightforward integration into professional electrical assemblies requiring UL 1077 supplementary protection.

Key Advantages

• 5 A supplementary protector for reliable equipment overcurrent protection.
• 2-pole configuration provides coordinated protection and switching of two conductors.
• C tripping characteristic suited to general-purpose circuits with moderate inrush currents.
• 15 kA interrupting rating for robust short-circuit protection.
• UL 1077 classification for supplementary protection within electrical equipment.
• Compact modular construction for efficient DIN-rail panel installation.

Key Features

• ABB System pro M compact ST200M series.
• 5 A rated current.
• 2-pole configuration.
• C tripping characteristic.
• 15 kA interrupting rating.
• UL 1077 supplementary protector.
• Thermal-magnetic overload and short-circuit protection.
• Resettable protection following an overcurrent trip.
• Modular design for DIN-rail installation in control and equipment panels.

Reliable Supplementary Protection for Industrial Equipment

Supplementary protectors such as the ABB ST202M-C5 provide overcurrent protection within industrial machinery and other electrical equipment where appropriate branch-circuit protection is provided separately. Thermal-magnetic operation combines time-dependent overload protection with rapid magnetic response when a sufficiently high short-circuit current occurs.

The ST200M series provides a compact modular solution for protecting control circuits and equipment loads. The two-pole ST202M-C5 provides linked protection of two conductors, while its C characteristic offers a practical balance between accommodating moderate normal inrush currents and providing dependable fault protection.

Typical Applications

• Industrial machinery and equipment panels.
• Automation and process-control systems.
• Control and auxiliary circuits.
• General-purpose loads with moderate starting currents.
• Electrical equipment requiring supplementary overcurrent protection.
• OEM machinery and industrial control cabinets.