2CDS271334R0447 ABB ST201M-K13 13A 1P K Curve 15kA Miniature Circuit Breaker

Why Choose the ABB ST201M-K13 Miniature Circuit Breaker?

The ABB ST201M-K13 is a high-performance single-pole miniature circuit breaker (MCB) / supplementary protector designed to provide reliable overload and short-circuit protection in industrial control, automation and equipment circuits. With ABB order code 2CDS271334R0447, it forms part of the ABB ST 200 M series of modular DIN-rail circuit protection devices.

Designed for demanding applications requiring dependable protection in a compact format, the ST201M-K13 combines thermal and magnetic tripping to protect conductors and connected equipment against overcurrent conditions. Its K tripping characteristic is particularly suited to inductive loads and circuits where elevated starting currents need to be accommodated without unnecessary tripping.

Rated at 13 A, the ST201M-K13 provides an IEC rated ultimate short-circuit breaking capacity of 15 kA at 230 V AC. It is also classified as a UL 1077 supplementary protector, with a UL 1077 interrupting rating of 10 kA at 240 V AC, 277 V AC and 60 V DC, making it a versatile protection device for industrial machinery and equipment.

Key Advantages

• Compact single-pole miniature circuit breaker for supplementary circuit protection.
• 13 A rated current for industrial control and equipment circuits.
• K tripping characteristic suited to inductive loads and circuits with elevated starting currents.
• 15 kA IEC ultimate short-circuit breaking capacity at 230 V AC.
• 10 kA UL 1077 interrupting rating at specified AC and DC voltages.
• Compact 17.5 mm modular width for space-efficient DIN-rail installations.

Key Features

• ABB ST 200 M series miniature circuit breaker.
• 13 A rated current.
• Single-pole (1P) configuration.
• K-curve tripping characteristic.
• IEC rated operational voltage of 230 V AC.
• 15 kA rated ultimate short-circuit breaking capacity at 230 V AC.
• 11.2 kA rated service short-circuit breaking capacity at 230 V AC.
• UL 1077 interrupting rating of 10 kA at 240 V AC, 277 V AC and 60 V DC.
• Rated insulation voltage of 440 V and impulse withstand voltage of 4 kV.
• Thermal-magnetic protection against overload and short-circuit conditions.

Reliable Protection for Inductive Industrial Loads

Miniature circuit breakers such as the ABB ST201M-K13 provide automatic protection against overload and short-circuit conditions. The thermal element responds to sustained overloads, while the magnetic element provides rapid operation during sufficiently high fault currents, helping protect conductors and connected equipment from damaging overcurrent conditions.

The ST201M-K13's 13 A rating and K tripping characteristic make it particularly useful for circuits supplying inductive equipment or loads that can experience elevated current during start-up. This makes it a practical choice for selected motors, transformers, solenoids and industrial control equipment, provided the circuit design and protection requirements are compatible with the breaker characteristics.

Typical Applications

• Industrial control panels and automation systems.
• Machine control and auxiliary circuits.
• Inductive loads with elevated starting currents.
• Selected motor, transformer and solenoid circuits.
• Supplementary protection within industrial electrical equipment.
• DIN-rail control and electrical distribution assemblies.