2CDS272334R0447 ABB ST202M-K13 Miniature Circuit Breaker 15kA 2P K 13A UL 1077

Why Choose the ABB ST202M-K13 Miniature Circuit Breaker?

The ABB ST202M-K13 is a robust two-pole miniature circuit breaker (MCB) designed to provide supplementary overcurrent and short-circuit protection in industrial automation, machinery and control systems. Part of the ABB System pro M compact ST200M series, it combines a K tripping characteristic with a 13 A rated current for circuits supplying inductive equipment and loads with elevated starting currents.

Designed for UL 1077 supplementary protection, the ST202M-K13 provides two-pole protection in a compact DIN rail format. Its K tripping characteristic is particularly suited to industrial circuits where higher transient currents can occur during equipment start-up, helping reduce unwanted tripping while maintaining effective overload and short-circuit protection.

With a rated current of 13 A, two protected poles and an ultimate short-circuit breaking capacity of 15 kA at 400 V AC and 125 V DC according to IEC 60947-2, the ST202M-K13 combines high fault-clearing capability with reliable supplementary protection. Its UL 1077 interrupting rating is 10 kA at 240 V AC, 480Y/277 V AC and 125 V DC.

Key Advantages

• Compact two-pole miniature circuit breaker for supplementary circuit protection.
• 13 A rated current for industrial control, machinery and auxiliary circuits.
• K tripping characteristic suited to inductive loads and circuits with elevated starting currents.
• 15 kA ultimate short-circuit breaking capacity at 400 V AC and 125 V DC according to IEC 60947-2.
• 10 kA UL 1077 interrupting rating at specified AC and DC voltages.
• Compact DIN rail construction enables straightforward integration into industrial panels and OEM machinery.

Key Features

• ABB System pro M compact ST200M series.
• 13 A rated current.
• 2-pole configuration.
• K tripping characteristic.
• 15 kA ultimate short-circuit breaking capacity at 400 V AC and 125 V DC.
• 11.2 kA service short-circuit breaking capacity at 400 V AC.
• 400 V AC rated operational voltage according to IEC 60947-2.
• 440 V rated insulation voltage.
• 4 kV rated impulse withstand voltage.
• 10 kA interrupting rating according to UL 1077 at 240 V AC, 480Y/277 V AC and 125 V DC.
• Designed in accordance with UL 1077, CSA 22.2 No. 235 and IEC/EN 60947-2.
• Compact DIN rail format with an approximate product weight of 0.230 kg.

Reliable Supplementary Protection for Inductive Loads

Miniature circuit breakers such as the ABB ST202M-K13 automatically interrupt a circuit when excessive current caused by an overload or short circuit is detected. Once the underlying fault has been identified and cleared, the breaker can be reset, providing practical and reusable supplementary protection for industrial control panels, machinery and auxiliary electrical systems.

The K characteristic is designed for circuits supplying inductive equipment and other loads that can generate elevated transient currents during start-up. Combined with its 13 A rating, two-pole configuration and high IEC short-circuit breaking capacity, the ST202M-K13 provides a compact supplementary protection solution for industrial automation, control panels and OEM machinery.

Typical Applications

• Industrial machinery and electrical control panels.
• Automation and process-control equipment.
• Inductive electrical loads and equipment.
• Control and auxiliary circuits with elevated start-up currents.
• Commercial and industrial electrical equipment.
• OEM machinery requiring UL 1077 supplementary protection.