1TVS151800S3380 ABB EPX-6303-E1-MCCB Protecta Power 630A 3-Pole XT5 Electronic MCCB

Why Choose the ABB EPX-6303-E1-MCCB 630A 3-Pole Electronic MCCB?

The ABB EPX-6303-E1-MCCB is a high-performance 630 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 high-capacity electrical distribution assemblies.

Equipped with an ABB Ekip LS/I electronic trip unit, the EPX-6303-E1-MCCB provides configurable electronic protection for demanding electrical installations. Its protection functions include long-time overload protection and short-circuit protection characteristics, helping electrical engineers coordinate incoming and downstream protective devices according to the requirements of the distribution network.

With a 630 A rated current and three-pole configuration, the EPX-6303-E1-MCCB is suitable for three-phase electrical distribution systems requiring high-capacity incoming protection. Its ABB Tmax XT5 frame is designed for integration into compatible Protecta Power panelboards, with a maximum cable connection capacity of 185 mm² for the specified XT5 incoming device arrangement, subject to terminal and conductor suitability.

Key Advantages

• 630 A electronic moulded case circuit breaker designed for high-capacity incoming electrical protection.
• Three-pole configuration suitable for industrial three-phase electrical distribution systems.
• ABB Tmax XT5 circuit breaker platform provides robust low-voltage circuit protection.
• Integrated Ekip LS/I electronic trip protection for overload and short-circuit fault conditions.
• Configurable electronic protection settings support coordination with downstream protective devices.
• Designed for integration into ABB Protecta Power electrical distribution assemblies.
• Compatible with the ABB EPX-6303CK incoming connection kit for suitable panelboard configurations.

Key Features

• ABB Protecta Power incoming MCCB range.
• 630 A rated current.
• Three-pole (3P) circuit breaker configuration.
• ABB Tmax XT5 moulded case circuit breaker.
• Ekip electronic trip unit for configurable circuit protection.
• LS/I electronic protection functionality for overload and short-circuit protection.
• Long-time overload protection helps protect electrical conductors and connected distribution equipment.
• Electronic short-circuit protection supports appropriate fault protection coordination.
• Manual switching capability for operation of the incoming circuit breaker.
• Maximum XT5 cable connection capacity of 185 mm², subject to terminal configuration and conductor suitability.
• Front extended terminals are available separately for suitable cable lug connections.
• Designed for incoming circuit protection within compatible ABB Protecta Power panelboards.
• ABB manufacturer order code 1TVS151800S3380.

Reliable Circuit Protection for High-Capacity Power Distribution

Electronic moulded case circuit breakers such as the ABB EPX-6303-E1-MCCB protect electrical distribution systems against overloads and short-circuit faults. The electronic trip unit monitors current conditions and initiates circuit breaker operation when the configured protection thresholds are exceeded. This helps protect electrical cables, connected equipment and distribution infrastructure from potentially damaging overcurrent conditions.

The ABB Tmax XT5 electronic MCCB platform combines robust circuit breaker construction with electronic protection technology. Its Ekip LS/I trip functionality supports coordination between incoming and downstream protective devices, helping engineers develop reliable and appropriately selective distribution arrangements. When installed with the correct ABB Protecta Power enclosure and EPX-6303CK incoming connection kit, the EPX-6303-E1-MCCB provides a practical solution for high-capacity three-phase incoming circuit protection.

Typical Applications

• Commercial building main and sub-distribution panelboards.
• Industrial low-voltage electrical distribution systems.
• ABB Protecta Power 630 A incoming circuit breaker installations.
• Manufacturing facilities and large production plants.
• Electrical plant rooms and building services infrastructure.
• Warehouses, logistics centres and large commercial premises.
• Three-phase electrical distribution systems requiring 630 A incoming protection.
• Panel building and industrial electrical infrastructure projects.