1SDX255156R1 ABB EPX-XT4S-E1-1004 100A 4-Pole 50kA MCCB LS/I

Why Choose the ABB EPX-XT4S-E1-1004 100A 4-Pole 50kA MCCB?

The ABB EPX-XT4S-E1-1004 is a high-performance 100 A four-pole moulded case circuit breaker (MCCB) designed to provide reliable overload and short-circuit protection in industrial and commercial low-voltage electrical distribution systems. As part of the ABB Protecta Power Devices range, incorporating the advanced ABB Tmax XT4S circuit breaker platform, it offers dependable electrical protection for distribution boards, switchgear assemblies and power distribution installations.

This circuit breaker features an ABB Ekip electronic LS/I trip unit, providing long-time overload protection together with selectable short-time or instantaneous short-circuit protection characteristics. The electronic protection system enables effective fault management and helps safeguard electrical cables, distribution equipment and connected loads against potentially damaging overcurrent conditions.

With a 100 A rated current, four-pole configuration and 50 kA short-circuit breaking capacity, the EPX-XT4S-E1-1004 is particularly suitable for three-phase electrical distribution systems requiring four-pole switching and protection. Its compact 140 mm four-pole XT4S format supports efficient integration into electrical distribution panels and switchboards.

Key Advantages

• Reliable 100 A moulded case circuit breaker for industrial and commercial electrical distribution.
• Four-pole (4P) configuration suitable for three-phase systems requiring neutral-pole switching.
• 50 kA short-circuit breaking capacity for demanding low-voltage electrical installations.
• ABB Ekip LS/I electronic protection for overload and short-circuit fault management.
• Selectable short-time or instantaneous short-circuit protection characteristics.
• Compact ABB Tmax XT4S breaker platform for efficient switchboard integration.
• Electronic trip technology supports dependable and consistent circuit protection.
• Suitable for integration into ABB Protecta Power distribution assemblies.
• Helps protect electrical infrastructure and connected equipment against damaging overcurrent conditions.

Key Features

• ABB Protecta Power Devices range.
• ABB Tmax XT4S moulded case circuit breaker platform.
• 100 A rated current.
• Four-pole (4P) configuration.
• 50 kA short-circuit breaking capacity.
• ABB Ekip electronic LS/I trip protection.
• Long-time overload protection (L).
• Selectable short-time (S) or instantaneous (I) short-circuit protection.
• Automatic circuit interruption under applicable overload and short-circuit fault conditions.
• Compact 140 mm four-pole breaker width.
• Manual switching mechanism with automatic protective tripping.
• Suitable for low-voltage distribution boards and switchgear assemblies.
• ABB manufacturer order code 1SDX255156R1.

Reliable Four-Pole Circuit Protection for Electrical Distribution Systems

Moulded case circuit breakers such as the ABB EPX-XT4S-E1-1004 play an essential role in protecting modern low-voltage electrical distribution systems. They monitor electrical current and automatically interrupt the circuit when overload or short-circuit conditions exceed the applicable protection settings. This helps reduce the risk of damage to electrical cables, switchgear and connected equipment while supporting safe and reliable operation.

The ABB Tmax XT4S platform combines compact construction with electronic protection technology for demanding commercial and industrial applications. Its Ekip LS/I trip unit provides long-time overload protection and allows the selection of short-time or instantaneous short-circuit protection characteristics. The four-pole arrangement makes the breaker suitable for three-phase distribution systems where switching of the neutral conductor is required, subject to the installation design and applicable electrical standards.

Typical Applications

• Industrial low-voltage electrical distribution boards.
• Commercial building electrical distribution systems.
• Three-phase and neutral power distribution circuits.
• ABB Protecta Power distribution assemblies.
• Electrical switchboards and switchgear installations.
• Industrial machinery supply circuit protection.
• Manufacturing facilities and production plants.
• Building services and electrical infrastructure.
• Electrical control panels and automation installations.
• OEM power distribution and panel-building applications.