Why Choose the ABB EPX-XT2S-TM0164 16A 4-Pole 50kA MCCB?
The ABB EPX-XT2S-TM0164 is a compact and reliable 16 A four-pole moulded case circuit breaker (MCCB) designed to provide overload and short-circuit protection in low-voltage electrical distribution systems. Featuring a specified 50 kA breaking capacity and thermal-magnetic protection, this circuit breaker belongs to the ABB Protecta Power Devices range and uses the proven ABB Tmax XT2S platform.
Designed for professional electrical distribution applications, the EPX-XT2S-TM0164 combines dependable switching performance with thermal-magnetic circuit protection. Its manufacturer-specified TMA trip arrangement provides protection against sustained overload currents and high-current short-circuit faults, helping safeguard electrical cables, connected equipment and distribution circuits.
With a rated current of 16 A, a four-pole (4P) configuration and a specified 50 kA short-circuit breaking capacity, the EPX-XT2S-TM0164 is suitable for appropriately designed three-phase electrical distribution circuits requiring four-pole operation. Identified by ABB order code 1SDX255107R1, this MCCB provides a coordinated circuit protection solution for compatible ABB Protecta Power panelboard installations.
Key Advantages
- Compact 16 A moulded case circuit breaker for low-voltage electrical distribution.
- Four-pole (4P) construction suitable for three-phase systems requiring neutral switching.
- 50 kA breaking capacity for installations with demanding prospective fault-current requirements.
- TMA thermal-magnetic protection against overload and short-circuit conditions.
- Proven ABB Tmax XT2S circuit breaker technology.
- Mechanical switching and automatic protective tripping in one compact device.
- Designed for integration into compatible ABB Protecta Power distribution assemblies.
- Thermal-magnetic protection provides straightforward operation without requiring an electronic trip unit.
- Supports coordinated circuit protection when correctly selected and configured.
- Suitable for commercial, industrial and building services electrical installations.
Key Features
- ABB Protecta Power Devices product range.
- EPX-XT2S-TM0164 manufacturer product designation.
- 1SDX255107R1 ABB order code.
- XT2S moulded case circuit breaker frame and performance designation.
- 16 A rated current.
- Four-pole (4P) circuit breaker construction.
- 50 kA short-circuit breaking capacity.
- TMA thermal-magnetic trip protection as specified for this product.
- Thermal protection against sustained overload conditions.
- Magnetic protection against short-circuit faults.
- Simultaneous four-pole switching through a common operating mechanism.
- Compact construction for integration into low-voltage distribution equipment.
- Designed for compatible ABB Protecta Power outgoing circuit arrangements.
- Suitable for professional electrical panel building and switchboard integration.
Technical Specifications
- Manufacturer: ABB
- Product range: Protecta Power Devices
- Circuit breaker family: Tmax XT
- Frame: XT2S
- Model: EPX-XT2S-TM0164
- ABB order code: 1SDX255107R1
- Product type: Moulded case circuit breaker (MCCB)
- Rated current: 16 A
- Number of poles: 4
- Pole configuration: 4P
- Breaking capacity: 50 kA
- Trip unit: TMA
- Trip technology: Thermal-magnetic
- Overload protection: Thermal
- Short-circuit protection: Magnetic
- Rated operational voltage (XT2S platform): Up to 690 V AC
- Rated insulation voltage (XT2 platform): 800 V
- Rated impulse withstand voltage (XT2 platform): 8 kV
- Applicable circuit breaker standard: IEC/EN 60947-2
- Installation application: Low-voltage electrical distribution assemblies
- Compatible distribution system: ABB Protecta Power
- Product category: Thermal-magnetic moulded case circuit breakers
Reliable Thermal-Magnetic Protection for Low-Voltage Distribution
Moulded case circuit breakers are essential protective devices in electrical distribution systems. They automatically interrupt electrical current when overload or short-circuit conditions exceed the protective characteristics of the installed device. Thermal-magnetic circuit breakers achieve this using two complementary protection mechanisms: a thermal element that responds to sustained overcurrent and a magnetic element that responds rapidly to high short-circuit currents.
The ABB EPX-XT2S-TM0164 combines a 16 A rated current with TMA thermal-magnetic protection. Its thermal protection function helps prevent prolonged overload conditions from damaging conductors and connected equipment, while its magnetic protection function provides rapid fault interruption during sufficiently high short-circuit currents.
The ABB Tmax XT2S circuit breaker platform is developed for dependable switching and protection in low-voltage distribution systems. Its compact moulded case construction, four-pole operating mechanism and short-circuit interruption capabilities make it suitable for electrical installations where reliable circuit protection and efficient use of panel space are important.
As part of the ABB Protecta Power Devices range, the EPX-XT2S-TM0164 is intended for integration into compatible Protecta Power distribution assemblies. Correct installation requires verification of the prospective short-circuit current, operating voltage, conductor sizing, neutral arrangement and coordination with other protective devices. The specified 50 kA breaking capacity must be assessed under the applicable manufacturer rating conditions.
Typical Applications
- ABB Protecta Power low-voltage electrical distribution panelboards.
- Four-pole outgoing feeder protection.
- Three-phase electrical distribution circuits requiring 16 A protection.
- Commercial building electrical distribution systems.
- Industrial control and auxiliary power distribution circuits.
- Building services and electrical infrastructure installations.
- Electrical distribution circuits requiring high short-circuit interruption capability.
- Manufacturing facilities and industrial electrical panels.
- Electrical switchboard manufacturing and panel building.
- OEM power distribution assemblies and electrical system integration.
