Why Choose the ABB EPX-XT2S-TM1003 100A 3-Pole MCCB?
The ABB EPX-XT2S-TM1003 is a 100 A, three-pole moulded case circuit breaker (MCCB) from the ABB Protecta Power Devices range. Featuring the XT2S circuit-breaker configuration, a specified 50 kA short-circuit breaking capacity and a TMA thermal-magnetic trip unit, this device is designed for compatible low-voltage electrical distribution systems requiring overload and short-circuit protection.
The ABB XT2S 100 A 3P MCCB combines three-pole circuit protection with thermal-magnetic tripping technology. Its thermal protection function responds to sustained overload conditions, while its magnetic protection function responds to high short-circuit currents. Together, these protection principles help safeguard electrical conductors and connected equipment when the circuit breaker is correctly selected, coordinated and installed.
Identified by ABB order code 1SDX254943R1, the EPX-XT2S-TM1003 provides a manufacturer-specified combination of 100 A rated current, three-pole construction, 50 kA breaking capacity and TMA protection. It is suitable for appropriately engineered electrical distribution boards, industrial switchboards and commercial power distribution assemblies.
Key Advantages
- 100 A rated current for compatible low-voltage distribution circuits.
- 50 kA specified breaking capacity for applications requiring substantial short-circuit interruption capability.
- Three-pole (3P) configuration for coordinated switching and protection of three conductors.
- TMA thermal-magnetic trip unit providing overload and short-circuit protection functions.
- XT2S circuit-breaker configuration within the ABB Protecta Power Devices range.
- Moulded case construction suitable for professional electrical distribution equipment.
- Helps protect electrical circuits and connected equipment against damaging overcurrent conditions.
- Suitable for compatible three-phase electrical distribution applications.
- Supports integration into industrial and commercial electrical switchboards.
- Manufacturer-specific product identification simplifies accurate procurement and replacement.
Key Features
- ABB Protecta Power Devices MCCB.
- XT2S circuit-breaker configuration.
- 100 A rated current.
- 3P three-pole construction.
- 50 kA specified short-circuit breaking capacity.
- TMA thermal-magnetic trip unit.
- Thermal protection principle for sustained overload conditions.
- Magnetic protection principle for short-circuit fault conditions.
- Moulded case circuit-breaker design for low-voltage power distribution.
- Suitable for integration into compatible electrical distribution assemblies.
- ABB product model EPX-XT2S-TM1003.
- ABB manufacturer order code 1SDX254943R1.
Technical Specifications
- Manufacturer: ABB
- Product model: EPX-XT2S-TM1003
- ABB order code: 1SDX254943R1
- Product family: Protecta Power Devices
- ABB product group: Protecta Power Devices
- Circuit-breaker configuration: XT2S
- Product type: Moulded Case Circuit Breaker (MCCB)
- Rated current: 100 A
- Number of poles: 3
- Pole configuration: 3P (three-pole)
- Specified breaking capacity: 50 kA
- Trip unit: TMA
- Trip technology: Thermal-magnetic
- Overload protection principle: Thermal
- Short-circuit protection principle: Magnetic
- Primary application: Low-voltage electrical circuit protection
- Installation environment: Compatible electrical distribution boards and switchboard assemblies
100A Thermal-Magnetic Protection with 50kA Breaking Capacity
Moulded case circuit breakers are important components of low-voltage electrical distribution systems, providing circuit switching and protection against excessive current. Thermal-magnetic MCCBs combine two complementary protection mechanisms: a thermal element that responds to sustained overloads and a magnetic element that reacts rapidly to sufficiently high short-circuit currents.
The ABB EPX-XT2S-TM1003 provides these protection functions in a 100 A, three-pole XT2S configuration. Its TMA trip unit supports thermal-magnetic overcurrent protection, while the specified 50 kA breaking capacity makes it relevant to installations requiring a circuit breaker with substantial fault interruption capability.
The specified 50 kA breaking capacity must be evaluated at the applicable operating voltage and under the manufacturer's relevant test conditions. Exact Icu and Ics ratings, rated operational voltage, trip adjustment ranges, mounting arrangements and terminal configurations should be confirmed using the appropriate ABB technical documentation. Proper selection also requires consideration of prospective fault current, conductor protection, discrimination and the overall electrical installation design.
Typical Applications
- ABB Protecta Power electrical distribution assemblies.
- Low-voltage circuits requiring 100 A overcurrent protection.
- Three-phase electrical distribution systems.
- Industrial electrical power distribution panels.
- Commercial building main and sub-distribution boards.
- Switchboards requiring a 50 kA-rated MCCB under the specified operating conditions.
- Electrical installations requiring thermal-magnetic overload and short-circuit protection.
- Compatible machinery and equipment distribution circuits.
- Professional electrical panel manufacturing and switchboard integration.
- Maintenance and replacement of correctly matched ABB XT2S circuit-breaker configurations.
