Why Choose the ABB EPX-XT1S-TM1003 100 A 3-Pole 50 kA MCCB?
The ABB EPX-XT1S-TM1003, order code 1SDX254925R1, is a 100 A, 3-pole moulded case circuit breaker (MCCB) featuring a specified 50 kA breaking capacity and TMA thermomagnetic protection. Based on the ABB XT1S circuit breaker platform, this device belongs to the ABB Protecta Power Devices product group and is intended for low-voltage electrical distribution applications.
The EPX-XT1S-TM1003 combines circuit switching with protection against overload and short-circuit conditions. Its TMA thermomagnetic trip unit uses thermal protection for overload conditions and magnetic protection for short-circuit faults, helping protect appropriately designed electrical distribution circuits and connected equipment.
With its 100 A rated current, three-pole configuration and 50 kA specified breaking capacity, the ABB EPX-XT1S-TM1003 provides a circuit protection solution for compatible three-phase power distribution systems. Its XT1S construction and Protecta Power Devices designation support integration into suitably configured commercial and industrial electrical assemblies.
Key Advantages
- 100 A rated current for compatible low-voltage electrical distribution circuits.
- 3-pole configuration for three-phase electrical applications.
- 50 kA specified breaking capacity for short-circuit protection requirements.
- TMA thermomagnetic trip unit combining thermal and magnetic protection functions.
- Based on the established ABB XT1S moulded case circuit breaker platform.
- Provides protective tripping and manual circuit switching in one device.
- Moulded case construction supports integration into compatible electrical panels.
- Associated with the ABB Protecta Power Devices range.
- Suitable for appropriately designed industrial and commercial distribution assemblies.
Key Features
- ABB EPX-XT1S-TM1003 moulded case circuit breaker.
- XT1S circuit breaker series.
- 100 A nominal current rating.
- 3-pole circuit breaker construction.
- 50 kA specified breaking capacity.
- TMA thermomagnetic protection unit.
- Thermal overload protection functionality.
- Magnetic short-circuit protection functionality.
- Manual circuit switching and automatic protective tripping.
- Designed for compatible low-voltage electrical distribution assemblies.
- Part of the ABB Protecta Power Devices product group.
- Manufacturer order code 1SDX254925R1.
Technical Specifications
- Manufacturer: ABB
- Product group: Protecta Power Devices
- Circuit breaker series: XT1S
- Model: EPX-XT1S-TM1003
- ABB order code: 1SDX254925R1
- Product type: Moulded case circuit breaker (MCCB)
- Rated current: 100 A
- Number of poles: 3
- Specified breaking capacity: 50 kA
- Trip unit: TMA
- Protection technology: Thermomagnetic
- Overload protection: Thermal
- Short-circuit protection: Magnetic
- Circuit application: Three-phase low-voltage distribution
- Associated product range: ABB Protecta Power Devices
- Installation: Compatible electrical distribution assemblies
Thermomagnetic Circuit Protection for Three-Phase Electrical Distribution
Moulded case circuit breakers provide essential protection in electrical distribution systems by interrupting circuits under specified overload and short-circuit conditions. The ABB EPX-XT1S-TM1003 incorporates TMA thermomagnetic protection, using thermal and magnetic tripping principles to protect compatible electrical circuits against excessive current.
The ABB XT1S platform supports low-voltage power distribution applications where dependable circuit switching and fault protection are required. With a 100 A current rating, three-pole construction and 50 kA specified breaking capacity, the EPX-XT1S-TM1003 can be selected for suitable three-phase distribution arrangements. The applicable operating voltage, short-circuit breaking capacity at that voltage, protection settings and coordination with other protective devices must be confirmed during installation design.
Typical Applications
- ABB Protecta Power electrical distribution assemblies.
- Industrial three-phase power distribution systems.
- Commercial building electrical distribution boards.
- Low-voltage switchboards and control panels.
- Electrical feeder and distribution circuit protection.
- Three-phase equipment supply circuits requiring suitable 100 A protection.
- Electrical panel manufacturing and switchboard assembly projects.
- Maintenance and replacement of compatible XT1S thermomagnetic MCCBs.
