Why Choose the ABB EPX-XT1S-TM0803 80 A 3-Pole 50 kA MCCB?
The ABB EPX-XT1S-TM0803, order code 1SDX254923R1, is an 80 A, 3-pole moulded case circuit breaker (MCCB) featuring a 50 kA breaking capacity and TMA thermomagnetic protection. Based on the ABB XT1S circuit breaker platform, this device is associated with the ABB Protecta Power Devices product group and is designed for low-voltage electrical distribution and circuit protection applications.
The EPX-XT1S-TM0803 combines dependable circuit switching with thermomagnetic protection against overloads and short-circuit faults. Its TMA trip unit incorporates thermal overload protection and magnetic short-circuit protection, supporting the protection of electrical distribution circuits in appropriately designed industrial and commercial installations.
With a rated current of 80 A, a three-pole configuration and a specified 50 kA breaking capacity, the ABB EPX-XT1S-TM0803 is suitable for three-phase electrical distribution systems requiring a compact moulded case circuit breaker. Its association with the Protecta Power Devices range makes it a practical choice for compatible electrical distribution boards, switchboards and power distribution assemblies.
Key Advantages
- 80 A rated current for low-voltage electrical distribution circuits.
- 3-pole configuration suitable for three-phase electrical systems.
- 50 kA breaking capacity for applications requiring the specified short-circuit interruption performance.
- TMA thermomagnetic trip unit providing overload and short-circuit protection.
- Based on the established ABB XT1S moulded case circuit breaker platform.
- Compact MCCB construction supports efficient use of electrical panel space.
- Associated with the ABB Protecta Power Devices product group.
- Suitable for compatible industrial and commercial electrical distribution assemblies.
- Provides circuit isolation and switching functionality when installed and operated in accordance with manufacturer requirements.
Key Features
- ABB EPX-XT1S-TM0803 moulded case circuit breaker.
- ABB XT1S circuit breaker platform.
- 80 A nominal current rating.
- 3-pole circuit breaker configuration.
- 50 kA specified breaking capacity.
- TMA thermomagnetic protection unit.
- Thermal protection against sustained overload conditions.
- Magnetic protection against short-circuit faults.
- Manual circuit switching and protective tripping functionality.
- Moulded case construction for low-voltage distribution applications.
- Associated with ABB Protecta Power Devices.
- Manufacturer order code 1SDX254923R1.
Technical Specifications
- Manufacturer: ABB
- Product group: Protecta Power Devices
- Circuit breaker series: XT1S
- Model: EPX-XT1S-TM0803
- ABB order code: 1SDX254923R1
- Product type: Moulded case circuit breaker (MCCB)
- Rated current: 80 A
- Number of poles: 3
- Breaking capacity: 50 kA
- Trip unit: TMA
- Protection technology: Thermomagnetic
- Overload protection: Thermal
- Short-circuit protection: Magnetic
- Circuit configuration: Three-phase
- Application: Low-voltage electrical distribution and circuit protection
- Associated product range: ABB Protecta Power Devices
- Installation: Compatible electrical distribution assemblies
Reliable Thermomagnetic Protection for Three-Phase Distribution Systems
Moulded case circuit breakers are essential components of low-voltage electrical distribution systems, providing protection against overloads and short-circuit conditions. The ABB EPX-XT1S-TM0803 incorporates a TMA thermomagnetic trip unit, combining thermal overload protection with magnetic short-circuit protection to interrupt electrical faults according to the device's protection characteristics.
The ABB XT1S platform provides moulded case circuit breaker technology for industrial and commercial electrical installations. With its 80 A current rating, three-pole construction and 50 kA specified breaking capacity, the EPX-XT1S-TM0803 supports the protection of compatible three-phase distribution circuits. The applicable operating voltage, rated short-circuit breaking capacity at that voltage, trip settings and coordination requirements must be considered when designing the complete electrical installation.
Typical Applications
- ABB Protecta Power electrical distribution assemblies.
- Industrial three-phase electrical distribution systems.
- Commercial building power distribution boards.
- Low-voltage switchboards and electrical control panels.
- Electrical feeder and distribution circuit protection.
- Three-phase equipment supply circuits requiring appropriately rated MCCB protection.
- Electrical panel manufacturing and switchboard integration.
- Maintenance and replacement of compatible 80 A thermomagnetic circuit breakers.
