Why Choose the ABB EPX-XT4S-E1-0403 40 A 3-Pole MCCB?
The ABB EPX-XT4S-E1-0403 is a high-performance 40 A three-pole moulded case circuit breaker (MCCB) designed to provide reliable overload and short-circuit protection in low-voltage electrical distribution systems. As part of the ABB Protecta Power Devices range, this circuit breaker incorporates an XT4S160 frame with an electronic Ekip LS/I trip unit, making it suitable for commercial and industrial electrical installations requiring dependable circuit protection.
With a 50 kA breaking capacity, the EPX-XT4S-E1-0403 is designed to interrupt high prospective fault currents while protecting electrical distribution equipment and connected circuits. Its electronic protection system provides long-time overload protection together with selectable short-time delayed or instantaneous short-circuit protection, helping engineers coordinate protection across electrical distribution networks.
The 40 A rated current, three-pole configuration and compact XT4S construction make this MCCB particularly suitable for installation within ABB Protecta Power distribution assemblies, switchboards and industrial control panels. Its electronic trip technology provides flexible protection functionality for demanding electrical installations.
Key Advantages
- Reliable 40 A three-pole moulded case circuit breaker for low-voltage electrical distribution.
- 50 kA breaking capacity for protection against high prospective short-circuit currents.
- Electronic Ekip LS/I trip unit provides overload and selectable short-circuit protection.
- XT4S160 frame offers a compact solution for electrical distribution assemblies.
- Electronic protection characteristics support improved selectivity and coordination within distribution systems.
- Suitable for integration into ABB Protecta Power distribution equipment.
- Robust ABB circuit breaker construction supports dependable operation in commercial and industrial environments.
Key Features
- ABB Protecta Power Devices range.
- 40 A rated current.
- Three-pole (3P) circuit breaker configuration.
- 50 kA short-circuit breaking capacity.
- XT4S160 moulded case circuit breaker frame.
- Electronic Ekip LS/I protection trip unit.
- Long-time overload protection (L).
- Selectable short-time delayed (S) or instantaneous (I) short-circuit protection.
- Compact 110 mm three-pole frame width.
- Designed for low-voltage power distribution and circuit protection.
- Suitable for installation in compatible electrical distribution boards and switchgear assemblies.
Technical Specifications
- Manufacturer: ABB
- Product range: Protecta Power Devices
- Model: EPX-XT4S-E1-0403
- ABB order code: 1SDX255147R1
- Product type: Moulded case circuit breaker (MCCB)
- Frame: XT4S160
- Rated current: 40 A
- Number of poles: 3P
- Breaking capacity: 50 kA
- Trip unit technology: Electronic
- Trip unit: Ekip LS/I
- Overload protection: Long-time (L)
- Short-circuit protection: Selectable short-time delayed (S) or instantaneous (I)
- Frame width: 110 mm
- Application: Low-voltage electrical distribution and circuit protection
- Installation: Compatible distribution boards, switchboards and electrical panels
Reliable Circuit Protection for Electrical Distribution Systems
Moulded case circuit breakers such as the ABB EPX-XT4S-E1-0403 protect electrical circuits against excessive current caused by overloads and short circuits. When an electrical fault occurs, the breaker interrupts the affected circuit to help prevent damage to cables, distribution equipment and connected electrical installations.
The ABB Ekip LS/I electronic trip unit provides long-time overload protection and allows the short-circuit protection function to be configured for short-time delayed or instantaneous operation. This flexibility helps electrical engineers select appropriate protection characteristics and coordinate circuit breakers within low-voltage distribution networks.
As part of the ABB Protecta Power Devices range, the EPX-XT4S-E1-0403 is suited to modern power distribution installations where reliable switching, fault interruption and coordinated electrical protection are essential.
Typical Applications
- ABB Protecta Power electrical distribution assemblies.
- Commercial building electrical distribution boards.
- Industrial low-voltage switchboards and switchgear.
- Electrical control panels and automation installations.
- Three-phase electrical feeder protection.
- Industrial machinery supply circuits.
- Power distribution circuits in manufacturing facilities.
- Building services and electrical infrastructure installations.
