Why Choose the ABB EPX-A1C-063L1 A1N125 63A Circuit Breaker?
The ABB EPX-A1C-063L1 is a 63 A, single-pole circuit breaker from the ABB Protecta Power Devices range. Featuring the A1N125 designation, an LSC L1 configuration and a TMA thermal-magnetic trip unit, this device is designed for compatible low-voltage electrical distribution and circuit protection applications.
The ABB A1N125 63 A 1P TMA configuration combines thermal and magnetic protection principles to provide protection against overloads and short-circuit faults. Its single-pole construction makes it suitable for appropriately designed electrical circuits requiring one-pole switching and protection.
Identified by ABB order code 1SDA123184R1, the EPX-A1C-063L1 incorporates the manufacturer-specified LSC L1 arrangement. This exact configuration should be matched to the relevant ABB Protecta Power installation documentation to ensure correct integration with the intended electrical distribution assembly.
Key Advantages
- 63 A rated current for compatible low-voltage distribution circuits.
- A1N125 circuit-breaker designation within the ABB Protecta Power Devices range.
- Single-pole (1P) configuration for one-pole circuit protection.
- TMA thermal-magnetic trip unit providing overload and short-circuit protection functions.
- LSC L1 configuration as specified by ABB.
- Supports the protection of electrical distribution circuits against overcurrent faults.
- Suitable for integration into compatible electrical distribution assemblies.
- Manufacturer-specific identification supports accurate product selection and procurement.
- Designed for professional electrical installation and switchboard applications.
Key Features
- ABB Protecta Power Devices circuit breaker.
- A1N125 model designation.
- 63 A rated current.
- 1P single-pole construction.
- TMA thermal-magnetic trip technology.
- Thermal protection principle for sustained overload conditions.
- Magnetic protection principle for short-circuit fault conditions.
- LSC L1 manufacturer-specified configuration.
- Designed for compatible low-voltage electrical distribution equipment.
- ABB product reference EPX-A1C-063L1.
- ABB order code 1SDA123184R1.
Technical Specifications
- Manufacturer: ABB
- Product model: EPX-A1C-063L1
- ABB order code: 1SDA123184R1
- Product family: Protecta Power Devices
- ABB product group: Protecta Power Devices
- Circuit-breaker designation: A1N125
- Product type: Thermal-magnetic circuit breaker
- Rated current: 63 A
- Number of poles: 1
- Pole configuration: 1P (single-pole)
- Trip unit: TMA
- Trip technology: Thermal-magnetic
- Manufacturer configuration: LSC L1
- Overload protection principle: Thermal
- Short-circuit protection principle: Magnetic
- Application: Low-voltage electrical circuit protection
- Installation environment: Compatible electrical distribution boards and switchboard assemblies
Thermal-Magnetic Protection for Low-Voltage Distribution Circuits
Thermal-magnetic circuit breakers combine two complementary overcurrent protection mechanisms. The thermal element responds to sustained overload conditions, while the magnetic element provides a rapid response to sufficiently high fault currents. Together, these functions help protect electrical conductors and equipment when the circuit breaker is correctly selected and installed.
The ABB EPX-A1C-063L1 provides this protection approach in a 63 A, single-pole A1N125 configuration. Its TMA trip unit makes it suitable for appropriately engineered low-voltage circuits where thermal-magnetic overcurrent protection is required.
The device also carries the specific LSC L1 designation, which should be retained when selecting the corresponding ABB product. The exact rated operational voltage, short-circuit breaking capacity, trip adjustment ranges, terminal arrangement and installation accessories should be confirmed using the applicable ABB technical documentation. The A1N125 designation should not be treated as confirmation of a particular breaking-capacity value without the manufacturer's specifications.
Typical Applications
- Compatible ABB Protecta Power electrical distribution assemblies.
- Low-voltage distribution circuits requiring 63 A protection.
- Single-pole electrical circuit protection applications.
- Commercial building electrical distribution boards.
- Industrial electrical distribution panels.
- Electrical installations requiring thermal-magnetic overcurrent protection.
- Compatible main and sub-distribution equipment.
- Professional electrical panel manufacturing and switchboard integration.
- Maintenance and replacement of correctly matched ABB circuit-breaker configurations.
