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ABB EPX-4003-E1-MCCB Protecta Power 400 A three-pole Tmax XT5 electronic moulded case circuit breaker with Ekip LS/I protection for incoming circuit protection in commercial and industrial low-voltage distribution assemblies.
£1,458.07
The ABB EPX-4003-E1-MCCB is a high-performance 400 A, 3-pole electronic moulded case circuit breaker (MCCB) designed for reliable incoming circuit protection in commercial and industrial low-voltage electrical distribution systems. As part of the ABB Protecta Power enclosure range, this incoming protective device incorporates ABB Tmax XT5 circuit breaker technology to provide dependable overload and short-circuit protection for electrical distribution assemblies.
Equipped with an ABB Ekip LS/I electronic trip unit, the EPX-4003-E1-MCCB provides adjustable protection functionality for demanding electrical installations. The electronic trip system incorporates long-time overload protection and selectable short-time or instantaneous short-circuit protection characteristics, allowing electrical engineers to configure protection settings according to the requirements of the distribution network.
With a 400 A rated current and three-pole configuration, the EPX-4003-E1-MCCB is suitable for three-phase electrical distribution systems requiring a high-capacity incoming protective device. Its ABB Tmax XT5 frame provides a compact and robust solution for installation within compatible Protecta Power panelboards, supporting coordinated circuit protection and reliable electrical power distribution.
Electronic moulded case circuit breakers such as the ABB EPX-4003-E1-MCCB protect electrical distribution systems against overloads and short-circuit faults. By monitoring current conditions and disconnecting the affected circuit when a fault is detected, the MCCB helps protect electrical cables, connected equipment and distribution infrastructure from potentially damaging fault currents.
The ABB Tmax XT5 electronic MCCB platform combines robust circuit breaker construction with adjustable electronic protection technology. Its Ekip LS/I trip unit supports protection coordination between incoming and downstream devices, helping improve the reliability and selectivity of appropriately designed electrical distribution systems. When installed with the correct ABB Protecta Power enclosure and incoming connection kit, the EPX-4003-E1-MCCB provides a practical solution for high-capacity three-phase incoming circuit protection.
| Series | Protecta Power / Tmax XT5 |
|---|---|
| ABB order code | 1TVS151800S3370 |
| Product type | Electronic moulded case circuit breaker (MCCB) |
| Rated current | 400 A |
| Number of poles | 3 |
| Circuit breaker frame | Tmax XT5 |
| Trip unit technology | Electronic |
| Trip unit family | ABB Ekip |
| Protection functions | LS/I |
| Overload protection | Long-time (L) |
| Short-circuit protection | Selectable short-time (S) or instantaneous (I) |
| Maximum cable connection capacity | 185 mm², subject to terminal configuration |
| Compatible incoming connection kit | EPX-4003CK |
| Installation type | Incoming circuit breaker for compatible electrical distribution assemblies |
| Product group | Protecta Power Enclosures |
| Application | Low-voltage electrical distribution and circuit protection |
The ABB EPX-4003-E1-MCCB is a 400 A, three-pole electronic moulded case circuit breaker designed to provide incoming overload and short-circuit protection in compatible ABB Protecta Power electrical distribution assemblies.
The EPX-4003-E1-MCCB has a 400 A rated current and uses the ABB Tmax XT5 circuit breaker platform for high-capacity low-voltage electrical distribution applications.
The breaker uses an ABB Ekip LS/I electronic trip unit, providing long-time overload protection and selectable short-time or instantaneous short-circuit protection characteristics for electrical distribution systems.
The three-pole (3P) configuration provides three switching and protection poles, making the MCCB suitable for appropriately designed three-phase electrical distribution systems where neutral pole switching is not required.
The ABB EPX-4003CK is the corresponding 400 A, three-pole XT5 incoming connection kit within the Protecta Power range. It provides the associated support and busbar connection components for compatible panelboard configurations and should be selected according to the complete assembly requirements.
ABB Tmax XT circuit breakers and Protecta Power distribution equipment are widely specified by electrical engineers, contractors and panel builders for dependable low-voltage power distribution. The EPX-4003-E1-MCCB combines 400 A circuit protection, three-pole switching and ABB Ekip LS/I electronic trip technology to support reliable incoming protection in commercial and industrial electrical installations.
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