1TVS151800S3613 ABB EPX-8003-E2-MCCB Protecta Power 800A 3-Pole XT6 Electronic LSI MCCB

Why Choose the ABB EPX-8003-E2-MCCB 800A Three-Pole Electronic LSI MCCB?

The ABB EPX-8003-E2-MCCB is an 800 A three-pole electronic LSI moulded case circuit breaker (MCCB) designed for compatible ABB Protecta Power low-voltage electrical distribution panelboards. Built around the ABB SACE Tmax XT6 circuit breaker platform, this incoming protective device combines high-current switching capability with electronic overload and short-circuit protection.

Part of the ABB Protecta Power Enclosures range, the EPX-8003-E2-MCCB features an electronic LSI protection arrangement. LSI refers to long-time (L), short-time (S) and instantaneous (I) overcurrent protection functions. These functions provide a means of configuring protection characteristics to suit the electrical installation, subject to the adjustment ranges and settings supported by the supplied electronic trip unit.

With an 800 A rating, three-pole configuration and XT6 device frame, the EPX-8003-E2-MCCB is intended for compatible high-capacity Protecta Power distribution assemblies. It provides an incoming circuit protection option for electrical contractors, consulting engineers and panel builders specifying commercial, industrial and infrastructure installations. The ABB manufacturer order code is 1TVS151800S3613.

Key Advantages

• Purpose-designed 800 A incoming MCCB for compatible ABB Protecta Power distribution panelboards.
• Three-pole (3P) configuration for appropriately designed three-phase electrical systems.
• Uses the ABB SACE Tmax XT6 moulded case circuit breaker platform.
• Features electronic LSI protection rather than a conventional thermal-magnetic trip arrangement.
• Provides long-time overload protection for sustained overcurrent conditions.
• Includes short-time short-circuit protection for applications requiring a configurable delayed protection function.
• Includes instantaneous short-circuit protection for rapid response to high fault currents.
• Supports electrical protection coordination when suitable settings are selected through an engineering study.
• Combines manual circuit switching with automatic overcurrent tripping.
• Designed for integration into compatible 800 A Protecta Power panelboard assemblies.
• Can be incorporated into a coordinated incoming arrangement using the appropriate ABB XT6 connection kit.
• Genuine ABB product identified by manufacturer order code 1TVS151800S3613.

Key Features

• ABB Protecta Power Enclosures product group.
• EPX-8003-E2-MCCB incoming electronic circuit breaker.
• 800 A designated current rating.
• Three-pole (3P) configuration.
• ABB SACE Tmax XT6 device platform.
• Electronic LSI overcurrent protection technology.
• L function: Long-time overload protection.
• S function: Short-time short-circuit protection.
• I function: Instantaneous short-circuit protection.
• Electronic protection functions intended to support suitable protection settings and coordination.
• Manual operation with automatic protective tripping.
• Designed for compatible ABB Protecta Power incoming circuit arrangements.
• Associated with the EPX-8003CK three-pole XT6 incoming connection kit where required.
• Suitable for professional low-voltage electrical panelboard construction.
• Manufacturer order code 1TVS151800S3613.

Advanced 800A Incoming Circuit Protection with Electronic LSI Technology

High-capacity electrical distribution systems require carefully selected incoming protective devices. The incoming MCCB must be capable of carrying the intended load and responding appropriately to overload and short-circuit conditions. Its protection characteristics must also be coordinated with the supply network, outgoing protective devices and prospective fault current at the installation.

The ABB EPX-8003-E2-MCCB provides an electronic protection solution for compatible 800 A Protecta Power assemblies. Its LSI protection functions allow long-time, short-time and instantaneous overcurrent characteristics to be considered separately during protection design. This offers greater flexibility than a basic fixed-characteristic protective arrangement, although the available adjustment ranges must always be confirmed against the specific supplied trip unit.

The long-time (L) function addresses overload conditions, helping protect the electrical distribution system against sustained currents above the configured protection threshold. The short-time (S) function addresses short-circuit conditions using a delayed trip characteristic, which can assist with discrimination between upstream and downstream protective devices where the network design permits.

The instantaneous (I) function provides a fast response to sufficiently high short-circuit currents. Together, these three functions support the development of a protection strategy appropriate to the installation's cable ratings, equipment characteristics and fault conditions. Selectivity is not guaranteed by the presence of LSI protection alone; it must be established through suitable coordination calculations and manufacturer data.

The three-pole configuration is intended for suitable three-phase circuits where a fourth switching pole is not specified. It is important to distinguish the EPX-8003-E2-MCCB from four-pole incoming MCCBs and from alternative XT6 trip-unit configurations. The required pole arrangement and protection functions should be determined by the electrical design, including the supply earthing system and neutral requirements.

The ABB Protecta Power system uses a modular approach to electrical distribution. The EPX-8003-E2-MCCB is intended to form part of a complete panelboard assembly, rather than serving as a standalone enclosed distribution unit. ABB identifies the EPX-8003CK as the corresponding 800 A three-pole XT6 incoming connection kit. This connection kit provides the associated support, shrouding and busbar connection components for the specified arrangement and should be ordered separately where required.

For XT6 incoming devices, ABB Protecta Power selection literature identifies a cable connection capacity of 2 × 120 mm² for the relevant arrangement. Actual cable compatibility depends on the terminals fitted, conductor type, installation conditions and the approved assembly design. The figure should not be interpreted as permission to use any conductor combination without checking ABB's installation documentation.

Before installation, the designer must confirm the device's rated operational voltage, short-circuit breaking capacity, electronic trip settings, terminal configuration and thermal performance against the exact manufacturer's technical data. These values are not established by the abbreviated product description alone. The completed panelboard must also comply with the applicable electrical installation and low-voltage assembly requirements.

Typical Applications

• ABB Protecta Power 800 A distribution panelboards.
• Three-phase incoming circuit protection using electronic LSI technology.
• Compatible ABB SACE Tmax XT6 incoming arrangements.
• Commercial building main and sub-distribution systems.
• Industrial low-voltage power distribution installations.
• Manufacturing plants and production facilities.
• Electrical switchrooms and high-current distribution assemblies.
• Warehouses and logistics distribution centres.
• Large retail and commercial developments.
• Healthcare, education and institutional electrical infrastructure.
• Industrial plant and machinery distribution networks.
• Installations requiring an engineered overcurrent protection coordination strategy.
• Professional electrical panel building and switchgear assembly.
• Compatible Protecta Power panelboard upgrades and refurbishment projects.