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1TVS151800S3377 ABB EPX-6304MCCB Protecta Power 630A 4-Pole XT5 Thermal Magnetic MCCB
ABB EPX-6304MCCB (1TVS151800S3377) 630 A four-pole Tmax XT5 thermal-magnetic incoming MCCB providing overload and short-circuit protection for compatible ABB Protecta Power low-voltage electrical distribution panelboards.
£2,474.91
Why Choose the ABB EPX-6304MCCB 630A Four-Pole XT5 MCCB?
The ABB EPX-6304MCCB is a high-performance 630 A four-pole moulded case circuit breaker (MCCB) designed for compatible ABB Protecta Power low-voltage electrical distribution panelboards. Based on the ABB SACE Tmax XT5 circuit breaker platform, this incoming protective device provides overload and short-circuit protection for appropriately designed three-phase electrical distribution systems.
Part of the ABB Protecta Power Enclosures range, the EPX-6304MCCB incorporates a thermal-magnetic (TMA) trip unit, combining thermal overload protection with magnetic short-circuit protection. Its four-pole (4P) configuration supports applications requiring a coordinated three-phase and neutral conductor arrangement, subject to the installation's earthing system and neutral protection requirements.
Developed for electrical contractors, switchgear manufacturers and panel builders, the EPX-6304MCCB provides a dedicated incoming protection solution for commercial, industrial and infrastructure power distribution installations. With a 630 A rated current, ABB Tmax XT5 construction and manufacturer order code 1TVS151800S3377, this genuine ABB device supports the construction of reliable and professionally engineered Protecta Power distribution assemblies.
Key Advantages
- Purpose-designed 630 A incoming MCCB for compatible ABB Protecta Power electrical distribution panelboards.
- Four-pole (4P) configuration for suitable three-phase electrical systems requiring a fourth pole.
- Based on the established ABB SACE Tmax XT5 circuit breaker platform.
- Features a thermal-magnetic (TMA) trip unit for overload and short-circuit protection.
- Provides automatic protective tripping under applicable overcurrent fault conditions.
- Combines manual circuit switching with automatic electrical protection.
- Designed for integration into compatible higher-current Protecta Power distribution assemblies.
- Supports coordinated incoming device installation using dedicated ABB connection accessories.
- Suitable for commercial, industrial and infrastructure power distribution applications.
- Helps panel builders specify a consistent incoming protection arrangement using ABB components.
- Supports electrical distribution maintenance, equipment replacement and compatible refurbishment projects.
- Genuine ABB product identified by manufacturer order code 1TVS151800S3377.
Key Features
- ABB Protecta Power Enclosures product range.
- EPX-6304MCCB incoming moulded case circuit breaker.
- 630 A rated current.
- Four-pole (4P) circuit breaker configuration.
- ABB SACE Tmax XT5 frame platform.
- Thermal-magnetic TMA trip unit.
- Thermal overload protection functionality.
- Magnetic short-circuit protection functionality.
- Manual circuit switching and automatic protective tripping.
- Designed for compatible ABB Protecta Power incoming distribution arrangements.
- Supports installation with the dedicated EPX-6304CK incoming connection kit.
- ABB Protecta Power literature identifies a maximum XT5 incoming cable capacity of 185 mm², subject to terminal and installation requirements.
- Extended front terminal accessories are available for suitable lug connection arrangements.
- Suitable for professional low-voltage switchgear and panelboard assembly.
- Manufacturer identification code 1TVS151800S3377.
Reliable 630A Incoming Circuit Protection with ABB Tmax XT5 Technology
Incoming circuit protection is a critical element of a low-voltage electrical distribution system. The incoming MCCB provides a protective switching point between the electrical supply and the distribution assembly, helping protect the connected installation against overload and short-circuit conditions when correctly selected, installed and coordinated with the wider electrical network.
The ABB EPX-6304MCCB uses the ABB SACE Tmax XT5 platform with a thermal-magnetic TMA trip unit. The thermal element responds to sustained overcurrent conditions, while the magnetic element provides rapid tripping when sufficiently high short-circuit currents occur. This combination provides conventional thermal-magnetic protection for applications where the device's characteristics meet the electrical design requirements.
The four-pole configuration distinguishes the EPX-6304MCCB from three-pole incoming breakers. Four-pole devices are commonly considered for three-phase systems where the installation design requires switching or protection arrangements involving the neutral conductor. The suitability of the fourth pole, including its protection characteristics, must be verified against the specific electrical supply and earthing arrangement.
ABB offers several incoming MCCB configurations within the Protecta Power range. The EPX-6303MCCB is the corresponding 630 A three-pole thermal-magnetic XT5 MCCB, while the EPX-6304MCCB provides the four-pole alternative. Electronic-trip versions are also available, including the EPX-6304-E1-MCCB, which uses electronic protection technology rather than the thermal-magnetic arrangement specified for this product.
For installation into a compatible Protecta Power panelboard, the incoming MCCB must be paired with the correct connection components. ABB identifies the EPX-6304CK as the corresponding 630 A, four-pole XT5 incoming connection kit. This kit includes an incomer support bracket, shrouding and busbar connectivity components, and should be specified separately where required by the approved assembly configuration.
ABB's published Protecta Power selection information identifies a maximum incoming cable capacity of 185 mm² for XT5 devices. Actual conductor compatibility depends on the selected terminal arrangement, cable construction, connection method and installation conditions. Extended front terminals are available for suitable lug connection applications, providing additional options when designing the incoming cable arrangement.
The EPX-6304MCCB is an incoming protective device rather than a complete enclosed panelboard. The finished distribution assembly requires a compatible enclosure, incoming connection kit, outgoing circuit breakers and any additional accessories specified by the electrical design. The installation designer must verify the required short-circuit breaking capacity, operating voltage, fault level, protection coordination and complete assembly compliance before installation and commissioning.
Typical Applications
- ABB Protecta Power low-voltage electrical distribution panelboards.
- 630 A four-pole incoming circuit protection.
- Compatible ABB SACE Tmax XT5 incoming MCCB arrangements.
- Commercial building main and sub-distribution systems.
- Industrial low-voltage electrical distribution installations.
- Three-phase electrical systems requiring an appropriately specified fourth pole.
- Manufacturing facilities and production equipment distribution.
- Electrical switchrooms and MCCB panelboard assemblies.
- Warehouses, logistics centres and distribution facilities.
- Office buildings, retail premises and commercial developments.
- Healthcare, educational and institutional electrical infrastructure.
- Industrial workshops and plant distribution systems.
- Electrical panel building and switchgear manufacturing projects.
- Protecta Power incoming device replacement and refurbishment.
- Distribution installations requiring thermal-magnetic overload and short-circuit protection.
Technical Specifications
| Product group | Protecta Power Enclosures |
|---|---|
| Series | Protecta Power |
| ABB order code | 1TVS151800S3377 |
| Manufacturer product description | 630A 4P MCCB - XT5 |
| Product type | Moulded case circuit breaker (MCCB) |
| Device category | Incoming circuit protection device |
| Rated current | 630 A |
| Number of poles | 4P (four-pole) |
| Device frame | ABB SACE Tmax XT5 |
| Trip unit technology | Thermal-magnetic (TMA) |
| Overload protection | Thermal trip function |
| Short-circuit protection | Magnetic trip function |
| Operating functionality | Manual switching and automatic protective tripping |
| Compatible distribution system | ABB Protecta Power |
| Intended installation position | Incoming supply section |
| Associated incoming connection kit | EPX-6304CK, subject to approved assembly configuration |
| Published XT5 maximum incoming cable capacity | 185 mm², subject to terminal and cable compatibility |
| Available terminal accessory | Extended front terminals for suitable lug connections |
| Standard kit contents | Incoming MCCB device |
| System type | Low-voltage electrical power distribution |
| Application | Commercial and industrial three-phase electrical distribution |
| Product classification | 630 A four-pole thermal-magnetic incoming MCCB |
Frequently Asked Questions
What is the ABB EPX-6304MCCB used for?
The ABB EPX-6304MCCB is a 630 A four-pole incoming moulded case circuit breaker designed for compatible ABB Protecta Power electrical distribution panelboards. It provides thermal-magnetic overload and short-circuit protection for appropriately designed incoming electrical circuits.
What is the current rating of the ABB EPX-6304MCCB?
The EPX-6304MCCB has a rated current of 630 A. It uses the ABB SACE Tmax XT5 circuit breaker platform and is designed for compatible Protecta Power incoming distribution arrangements. The completed installation must be assessed against its electrical loading, operating conditions and protection requirements.
What type of trip unit does the ABB EPX-6304MCCB use?
The EPX-6304MCCB uses a thermal-magnetic (TMA) trip unit. Its thermal element provides overload protection, while its magnetic element provides short-circuit protection. It is distinct from ABB's electronic-trip XT5 incoming MCCB variants.
What is the difference between the ABB EPX-6303MCCB and EPX-6304MCCB?
The EPX-6303MCCB is a 630 A three-pole thermal-magnetic XT5 MCCB, while the EPX-6304MCCB is the corresponding 630 A four-pole version. The correct choice depends on the electrical distribution arrangement and whether a fourth pole is required.
Does the ABB EPX-6304MCCB include the incoming connection kit?
The EPX-6304MCCB is listed as an incoming MCCB device. ABB identifies the EPX-6304CK as the corresponding 630 A, four-pole XT5 incoming connection kit, containing the incomer support bracket, shrouding and busbar connectivity components. The connection kit should be specified separately where required by the approved panelboard configuration.
Trusted by Electrical Contractors and Panel Builders Worldwide
ABB Protecta Power distribution solutions support professional low-voltage electrical installations across commercial, industrial and infrastructure projects. The EPX-6304MCCB combines a 630 A current rating, four-pole ABB SACE Tmax XT5 construction and thermal-magnetic protection technology, providing a coordinated incoming MCCB option for electrical contractors and panel builders assembling compatible Protecta Power distribution systems.
