1SDX253979R1 ABB EPX-XT2N-E1-0633 63A 3P 36kA MCCB Ekip LS/I

Why Choose the ABB EPX-XT2N-E1-0633 Protecta Power Circuit Breaker?

The ABB EPX-XT2N-E1-0633 is a high-performance 63 A three-pole moulded case circuit breaker (MCCB) designed to provide reliable overload and short-circuit protection in commercial and industrial low-voltage electrical distribution systems. Part of the ABB Protecta Power Devices range, this circuit breaker incorporates the proven ABB SACE Tmax XT2N160 platform with an Ekip LS/I electronic trip unit, delivering precise and dependable circuit protection.

Featuring a 36 kA short-circuit breaking capacity at 415 V AC, the EPX-XT2N-E1-0633 is designed to interrupt electrical faults while helping protect cables, switchgear and connected equipment. Its electronic protection system provides long-time overload protection (L) and selectable short-time (S) or instantaneous (I) short-circuit protection, supporting effective coordination within low-voltage distribution networks.

With a 63 A rated current, three-pole configuration and compact 100 mm nominal width, this MCCB is suitable for three-phase outgoing feeders, commercial distribution boards and industrial switchboards. Its electronic trip technology and compatibility with appropriately configured ABB Protecta Power distribution assemblies make it a practical choice for electrical contractors, panel builders and maintenance engineers.

Key Advantages

• 63 A rated current provides protection for appropriately designed low-voltage electrical distribution circuits.
• Three-pole (3P) configuration enables simultaneous switching and protection of three phase conductors.
• 36 kA breaking capacity at 415 V AC provides protection against significant prospective short-circuit currents.
• Ekip LS/I electronic trip unit provides configurable overload and short-circuit protection.
• Long-time overload protection (L) helps prevent conductor and equipment damage caused by sustained excessive current.
• Selectable short-time or instantaneous protection (S/I) supports coordination with downstream protective devices.
• ABB SACE Tmax XT2N160 platform combines robust construction with advanced electronic protection.
• Compact 100 mm nominal width helps optimise space within compatible distribution boards.
• Designed for integration into compatible ABB Protecta Power electrical distribution assemblies.

Key Features

• ABB Protecta Power Devices product family.
• EPX-XT2N-E1-0633 model designation.
• ABB SACE Tmax XT2N moulded case circuit breaker platform.
• 63 A rated current.
• XT2N160 frame with a maximum frame rating of 160 A.
• Three-pole (3P) circuit breaker construction.
• 36 kA short-circuit breaking capacity at 415 V AC.
• Ekip LS/I electronic trip unit.
• L protection: Long-time overload protection.
• S protection: Short-time delayed short-circuit protection, selectable as an alternative to I.
• I protection: Instantaneous short-circuit protection, selectable as an alternative to S.
• Electronic trip technology for consistent protective operation.
• Manual operating mechanism for circuit switching and resetting.
• 100 mm nominal width for the three-pole XT2 configuration.
• Suitable for low-voltage AC electrical distribution systems.
• Compatible with appropriately selected ABB Tmax XT2 mounting, connection and operating accessories.

Advanced Ekip LS/I Electronic Protection for Three-Phase Distribution

The ABB EPX-XT2N-E1-0633 incorporates an Ekip LS/I electronic trip unit designed to protect electrical installations against overloads and short-circuit faults. Unlike conventional thermal-magnetic protection, the electronic trip system uses electronic sensing and processing to deliver defined protective characteristics, helping engineers coordinate protection across electrical distribution networks.

The L (long-time) protection function responds to sustained excessive current, helping prevent overheating of cables and connected equipment. The S/I protection arrangement allows selection between short-time delayed short-circuit protection and instantaneous short-circuit protection. Short-time delay can assist coordination with downstream protective devices, while instantaneous protection provides rapid interruption of high fault currents.

The ABB SACE Tmax XT2N160 platform combines electronic protection with robust moulded case construction. Its three-pole configuration enables simultaneous switching of three phase conductors, making it suitable for appropriately designed commercial and industrial three-phase distribution circuits.

When installing the EPX-XT2N-E1-0633 within an ABB Protecta Power distribution board, suitable mounting components, terminal connections and protective covers must be selected. Electrical designers should verify the prospective short-circuit current, conductor ratings, electronic trip settings and protective device coordination before commissioning.

Typical Applications

• ABB Protecta Power electrical distribution boards.
• Commercial low-voltage power distribution systems.
• Industrial electrical switchboards and distribution panels.
• 63 A three-phase outgoing feeder protection.
• Three-phase electrical equipment supply circuits.
• Building services and mechanical plant distribution.
• Manufacturing and industrial facility electrical infrastructure.
• Commercial switchboards and sub-distribution assemblies.
• Electrical panel building and switchboard manufacturing.
• Distribution circuits requiring electronic overload and short-circuit protection.
• Electrical installations where protective device coordination is important.