1SDX253687R1 ABB EPX-XT1N-TM0204 20A 4-Pole 36kA Thermal-Magnetic MCCB

Why Choose the ABB EPX-XT1N-TM0204 20A 4-Pole MCCB?

The ABB EPX-XT1N-TM0204 is a compact and dependable 20 A four-pole moulded case circuit breaker (MCCB) designed to provide reliable overload and short-circuit protection in low-voltage electrical distribution systems. As part of the ABB Protecta Power Devices range, incorporating the proven ABB SACE Tmax XT1N circuit breaker platform, it provides effective electrical protection for commercial buildings, industrial installations and distribution board applications.

This circuit breaker uses thermal-magnetic protection technology to safeguard electrical circuits, cables and connected equipment against excessive current and fault conditions. Its four-pole configuration allows simultaneous switching of three phase conductors and a neutral conductor, making it suitable for three-phase electrical distribution systems requiring four-pole isolation.

With a rated current of 20 A, a four-pole configuration and a specified 36 kA breaking capacity, the EPX-XT1N-TM0204 provides dependable protection for outgoing circuits and distribution feeders. Its compact 110 mm-wide XT1 frame supports space-efficient installation within compatible ABB Protecta Power distribution boards and electrical enclosures.

Key Advantages

• Reliable 20 A moulded case circuit breaker for low-voltage electrical distribution.
• Four-pole configuration suitable for three-phase circuits with a neutral conductor.
• 36 kA specified breaking capacity for protection against high prospective short-circuit currents under the applicable rated conditions.
• Thermal-magnetic protection against overload and short-circuit faults.
• Compact ABB Tmax XT1N frame with a nominal width of 110 mm.
• Designed for integration into ABB Protecta Power distribution systems.
• Manual switching and isolation functionality supports electrical maintenance and circuit management.
• Robust moulded case construction suitable for commercial and industrial environments.
• Established ABB circuit breaker technology supports dependable electrical protection and long-term service.

Key Features

• ABB Protecta Power Devices product range.
• ABB SACE Tmax XT1N moulded case circuit breaker platform.
• 20 A rated current.
• Four-pole (4P) configuration.
• 36 kA specified short-circuit breaking capacity.
• Thermal-magnetic trip technology providing overload and short-circuit protection.
• XT1N 160 A frame family.
• 110 mm nominal device width for compact distribution board installation.
• Fixed circuit breaker construction with front-operated manual switching mechanism.
• Suitable for use with appropriately selected ABB Tmax XT1 mounting and connection accessories.
• Designed for integration into compatible low-voltage distribution assemblies.

Reliable Circuit Protection for Low-Voltage Distribution Systems

Moulded case circuit breakers such as the ABB EPX-XT1N-TM0204 protect electrical installations by automatically interrupting current when overload or short-circuit conditions occur. The thermal protection element responds to sustained excessive current, helping prevent overheating of cables and connected equipment. The magnetic protection element responds rapidly to high-current faults, helping minimise potential damage and improve electrical installation safety.

The ABB SACE Tmax XT1N series combines compact construction with established circuit protection technology. Its four-pole design supports the coordinated switching of three phase conductors and a neutral conductor, while the compact frame makes it practical for distribution boards where installation space is limited. As part of the ABB Protecta Power Devices range, the EPX-XT1N-TM0204 provides a suitable solution for protecting outgoing feeders and distribution circuits when correctly selected for the installation's voltage, prospective fault current and protection coordination requirements.

Typical Applications

• ABB Protecta Power distribution boards and panelboard assemblies.
• Commercial building low-voltage electrical distribution.
• Industrial electrical distribution panels.
• Three-phase circuits requiring four-pole switching and protection.
• Outgoing feeder protection in distribution boards.
• Electrical control panels and machinery supply circuits.
• Building services and infrastructure electrical systems.
• Commercial premises, offices and retail distribution installations.
• Low-voltage distribution systems requiring compact thermal-magnetic MCCBs.