2CDS272065R0044 ABB S202MT-C4UC MCB 10kA 2P Type C 4A

Why Choose the ABB S202MT-C4UC Miniature Circuit Breaker?

The ABB S202MT-C4UC is a high-performance two-pole universal-current miniature circuit breaker (MCB) designed to protect cables and conductors against overloads and short circuits in demanding AC and DC electrical systems. Part of the ABB System pro M compact S 200 MT UC series, it is particularly suited to rolling-stock, transportation and industrial installations requiring robust modular circuit protection.

This model combines a 4 A rated current with a Type C tripping characteristic. Type C operation provides a practical balance between fault sensitivity and tolerance of moderate starting or inrush currents, making the S202MT-C4UC suitable for control equipment, auxiliary systems, signalling circuits and other loads with normal transient current demands.

The S202MT-C4UC has two protected poles and provides a 10 kA short-circuit breaking capacity. Its universal-current S 200 MT UC construction supports flexible AC and DC applications, while the compact two-module DIN-rail format simplifies integration into control panels and transportation electrical assemblies. ABB order code 2CDS272065R0044 identifies this exact 4 A Type C model.

Key Advantages

• Universal-current MCB suitable for AC and DC applications.
• 4 A rated current for lower-current control, auxiliary and signalling circuits.
• Two-pole configuration with two protected poles.
• Type C tripping characteristic accommodates moderate normal starting and inrush currents.
• 10 kA short-circuit breaking capacity at 230 V AC and 400 V AC.
• S 200 MT UC construction developed for demanding rolling-stock and transportation environments.
• Patented ABB connection terminal supports straightforward and secure conductor installation.

Key Features

• ABB System pro M compact S 200 MT UC series.
• 4 A rated current.
• 2 poles / 2 protected poles.
• Type C tripping characteristic.
• Universal-current design for AC and DC circuits.
• 10 kA Icn at 230 V AC.
• 10 kA Icn at 400 V AC.
• 10 kA Icu at 230 V AC.
• 10 kA Icu at 400 V AC.
• 4 kV rated impulse withstand voltage.
• IP20 degree of protection.
• Designed to relevant electrical and rolling-stock requirements including IEC/EN 60898-1, IEC/EN 60947-2, EN 45545 and IEC 61373.

Reliable AC/DC Protection for Transportation and Industrial Circuits

The ABB S202MT-C4UC protects cables and conductors by automatically disconnecting the circuit when an overload or short circuit occurs. Its Type C characteristic provides dependable protection while accommodating moderate normal inrush currents, making the breaker suitable for auxiliary equipment, control circuits, signalling systems and other industrial or transportation loads.

The S 200 MT UC range is engineered for applications where electrical protection must be combined with demanding transportation requirements. The range satisfies R26/HL3 according to EN 45545 and, when mounted as specified, Category 1 Class A/B according to IEC 61373. This makes the S202MT-C4UC particularly suitable for rolling-stock installations as well as demanding stationary AC and DC control systems.

Typical Applications

• Railway and rolling-stock electrical systems.
• Transportation auxiliary power circuits.
• Industrial AC and DC control circuits.
• Signalling and monitoring equipment.
• Automation and control panels.
• Low-current auxiliary distribution circuits.
• Industrial machinery and electrical cabinets.