Why Choose the ABB EPX-XT4N-TM0323 32A 3-Pole MCCB?
The ABB EPX-XT4N-TM0323 is a 32 A, 3-pole moulded case circuit breaker (MCCB) with a specified 36 kA breaking capacity and TMA thermal-magnetic protection. Belonging to the ABB Protecta Power Devices product group, this circuit breaker is designed for low-voltage electrical distribution applications requiring protection against overloads and short circuits.
The EPX-XT4N-TM0323 combines a 32 A current rating with a three-pole configuration, making it suitable for appropriately designed three-phase electrical distribution circuits. Its thermal-magnetic protection technology combines a thermal element for overload protection with a magnetic element for short-circuit protection, helping safeguard electrical circuits and connected equipment.
Identified by ABB order code 1SDX253478R1, the EPX-XT4N-TM0323 is specified as a 32 A, 3-pole, 36 kA MCCB with TMA protection. It is intended for electrical contractors, panel builders, consulting engineers and maintenance professionals requiring a manufacturer-specific protective device for compatible ABB Protecta Power distribution installations.
Key Advantages
- Genuine ABB Protecta Power Devices moulded case circuit breaker.
- 32 A rated current for appropriately designed low-voltage electrical circuits.
- 3-pole configuration for three-phase circuit protection.
- 36 kA specified breaking capacity for suitable fault-level applications.
- TMA thermal-magnetic protection combines overload and short-circuit protection functions.
- Supports the protection of electrical distribution circuits and connected equipment.
- Suitable for integration into compatible ABB electrical distribution assemblies.
- Supports coordinated protective device selection in industrial and commercial installations.
- Designed for professional electrical panel building and distribution board applications.
- ABB order code 1SDX253478R1 enables accurate identification, specification and procurement.
Key Features
- ABB Protecta Power Devices product group.
- EPX-XT4N-TM0323 manufacturer product designation.
- ABB order code 1SDX253478R1.
- Moulded case circuit breaker (MCCB) construction.
- 32 A rated current.
- 3 poles for three-phase circuit protection.
- 36 kA specified breaking capacity.
- TMA thermal-magnetic trip protection.
- Thermal protection element for sustained overload conditions.
- Magnetic protection element for short-circuit conditions.
- Designed for low-voltage electrical distribution applications.
- Suitable for compatible ABB Protecta Power distribution equipment.
Technical Specifications
- Manufacturer: ABB
- Product group: Protecta Power Devices
- Model: EPX-XT4N-TM0323
- ABB order code: 1SDX253478R1
- Product designation: EPX-XT4N-TM0323 32A 3P 36kA MCCB - TMA
- Product type: Moulded case circuit breaker (MCCB)
- Product category: Low-voltage circuit protection devices
- Breaker designation: XT4N
- Rated current: 32 A
- Number of poles: 3
- Specified breaking capacity: 36 kA
- Trip unit designation: TMA
- Protection technology: Thermal-magnetic
- Overload protection: Thermal protection element
- Short-circuit protection: Magnetic protection element
- Electrical application: Three-phase low-voltage circuit protection
- Installation application: Compatible electrical distribution boards and switchgear assemblies
- Suitable for: Appropriately configured ABB Protecta Power distribution systems
- Product classification: 32 A 3-pole thermal-magnetic MCCB
32A Thermal-Magnetic Circuit Protection with 36kA Breaking Capacity
Low-voltage electrical distribution systems require protective devices capable of responding to abnormal current conditions. The ABB EPX-XT4N-TM0323 provides a 32 A, three-pole MCCB configuration with thermal-magnetic protection for suitable industrial and commercial electrical installations.
The thermal protection element responds to sustained overload currents that may otherwise cause excessive heating of conductors and connected equipment. The magnetic protection element responds to high fault currents associated with short circuits. Together, these protection functions provide overcurrent protection within the operating characteristics of the circuit breaker.
The specified 36 kA breaking capacity is an important factor when selecting the MCCB for an electrical distribution system. The prospective short-circuit current at the installation point must be assessed, and the applicable breaking-capacity rating must be verified against the operating voltage and relevant ABB technical documentation. The stated 36 kA value should not be assumed to apply identically at every system voltage.
The three-pole arrangement is intended for the protection and interruption of three phase conductors in a suitable electrical circuit. The EPX-XT4N-TM0323 should be selected with consideration for conductor sizing, load characteristics, protective device coordination, installation conditions and the requirements of the complete distribution assembly.
As part of the ABB Protecta Power Devices range, the EPX-XT4N-TM0323 should be installed in accordance with ABB technical instructions. Applicable requirements of BS EN IEC 60947-2 should be considered when selecting the circuit breaker, while compliance with BS EN IEC 61439, where applicable, must be established for the complete verified low-voltage switchgear assembly rather than assumed from an individual component.
Typical Applications
- ABB Protecta Power electrical distribution assemblies.
- Industrial low-voltage electrical distribution boards.
- Commercial building three-phase circuit protection.
- Electrical panel boards and switchgear assemblies.
- Manufacturing facility electrical distribution systems.
- Three-phase feeder circuit protection.
- Electrical plant rooms and distribution equipment installations.
- Machinery supply circuits where the protection characteristics are suitable.
- OEM electrical panel building and switchboard manufacturing.
- Electrical distribution upgrades and compatible MCCB replacement projects.
