1SDX254960R1 ABB EPX-XT4S-TM0323 32A 3-Pole 50kA TMA Moulded Case Circuit Breaker

Why Choose the ABB EPX-XT4S-TM0323 32A 3-Pole 50kA MCCB?

The ABB EPX-XT4S-TM0323 is a 32 A three-pole moulded case circuit breaker (MCCB) designed to provide dependable overload and short-circuit protection in low-voltage electrical distribution systems. Featuring a 50 kA short-circuit breaking capacity and a TMA thermal-magnetic trip unit, this circuit breaker is suitable for commercial, industrial and infrastructure installations requiring reliable electrical protection.

Part of the ABB Protecta Power Devices range, the EPX-XT4S-TM0323 belongs to the ABB SACE Tmax XT4S circuit breaker family. Its TMA protection release combines thermal overload protection with magnetic short-circuit protection, helping safeguard electrical conductors, distribution equipment and connected circuits against abnormal current conditions.

With its 32 A rated current, three-pole configuration and 50 kA breaking capacity, the EPX-XT4S-TM0323 is a practical solution for three-phase electrical distribution circuits where relatively modest continuous currents must be protected against potentially high fault levels. The ABB Tmax XT4S platform provides robust circuit protection for electrical contractors, panel builders and industrial maintenance professionals.

Key Advantages

• 32 A rated current suitable for appropriately designed commercial and industrial electrical circuits.
• 50 kA breaking capacity provides substantial short-circuit interruption capability.
• Three-pole configuration supports protection of three-phase electrical distribution systems.
• TMA thermal-magnetic trip unit combines overload and short-circuit protection.
• Thermal overload protection helps prevent damage caused by sustained excessive current.
• Magnetic short-circuit protection provides rapid tripping during sufficiently high fault currents.
• Adjustable protection functionality supports appropriate coordination with the electrical installation.
• ABB SACE Tmax XT4S technology provides dependable switching and protective operation.
• High breaking capacity relative to rated current makes the device suitable for circuits with demanding fault-level requirements.
• Manual switching with automatic protective tripping combines circuit control and electrical protection.
• Protecta Power application supports integration into compatible ABB electrical distribution assemblies.

Key Features

• ABB EPX-XT4S-TM0323 moulded case circuit breaker.
• 32 A rated current.
• Three-pole (3P) configuration.
• 50 kA short-circuit breaking capacity.
• ABB SACE Tmax XT4S circuit breaker platform.
• TMA thermal-magnetic protection release.
• Thermal protection against sustained overload currents.
• Magnetic protection against short-circuit faults.
• Automatic protective tripping under applicable overcurrent conditions.
• Manual operating mechanism for circuit switching.
• Three-pole switching arrangement for three-phase applications.
• S breaking capacity class within the ABB Tmax XT4 family.
• Designed for low-voltage AC electrical distribution.
• Suitable for appropriately configured ABB Protecta Power distribution equipment.
• Supports commercial and industrial electrical panel applications.

Thermal-Magnetic Protection for Three-Phase Electrical Distribution

The ABB EPX-XT4S-TM0323 incorporates a TMA thermal-magnetic protection release designed to respond to overload and short-circuit conditions. The thermal element provides an inverse-time response to sustained excessive currents, helping protect conductors and connected equipment against overheating. The magnetic element provides rapid fault interruption when the current reaches the applicable short-circuit tripping threshold. Protection settings should be selected according to the manufacturer's technical documentation and the requirements of the electrical installation.

The ABB SACE Tmax XT4S platform combines dependable protective operation with robust construction suitable for low-voltage distribution equipment. With a 32 A rated current, three-pole switching arrangement and 50 kA breaking capacity, the EPX-XT4S-TM0323 provides a practical solution for distribution feeders, industrial control panel supplies and electrical circuits requiring high fault interruption capability. Correct selection must consider the installation voltage, prospective short-circuit current, conductor ratings and protection coordination.

Typical Applications

• ABB Protecta Power electrical distribution boards.
• Commercial and industrial low-voltage switchboards.
• Three-phase electrical distribution circuits.
• 32 A outgoing feeders and distribution circuits.
• Industrial control panel supply circuits.
• Electrical panels requiring substantial short-circuit breaking capacity.
• Manufacturing and production facilities.
• Commercial building electrical infrastructure.
• Warehouses and logistics installations.
• Electrical panel building and switchgear assembly projects.
• Distribution circuits requiring thermal overload and magnetic short-circuit protection.
• Electrical maintenance, refurbishment and distribution system upgrades.