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1TVS151800S3364 ABB EPX-2503MCCB Protecta Power 250A 3-Pole XT4 Thermal Magnetic MCCB
ABB EPX-2503MCCB (1TVS151800S3364) 250 A three-pole Tmax XT4 thermal-magnetic incoming MCCB providing overload and short-circuit protection for compatible ABB Protecta Power low-voltage electrical distribution panelboards.
£832.52
Why Choose the ABB EPX-2503MCCB 250A Three-Pole XT4 MCCB?
The ABB EPX-2503MCCB is a purpose-designed 250 A three-pole moulded case circuit breaker (MCCB) for compatible ABB Protecta Power low-voltage electrical distribution panelboards. Based on the ABB Tmax XT4 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-2503MCCB features a thermal-magnetic (TMA) trip unit, combining thermal overload protection with magnetic short-circuit protection. Its three-pole configuration is intended for three-phase applications where a neutral switching pole is not required. The device is designed to work within ABB's coordinated Protecta Power panelboard system, providing an incoming circuit breaker option for compatible distribution assemblies.
Developed for electrical contractors, switchgear manufacturers and panel builders, the EPX-2503MCCB offers a practical incoming protection solution for commercial and industrial power distribution installations. With a 250 A device rating, three-pole XT4 construction and manufacturer order code 1TVS151800S3364, this genuine ABB component supports the specification and assembly of professional low-voltage distribution equipment.
Key Advantages
- Purpose-designed 250 A incoming MCCB for compatible ABB Protecta Power panelboards.
- Three-pole (3P) configuration for appropriate three-phase electrical distribution systems.
- Uses the established ABB Tmax XT4 moulded case circuit breaker platform.
- Features a thermal-magnetic (TMA) trip unit for overload and short-circuit protection.
- Provides automatic disconnection under applicable overcurrent fault conditions.
- Combines circuit protection and manual switching functionality in one device.
- Designed for integration with compatible ABB Protecta Power incoming arrangements.
- Supports coordinated panelboard construction using ABB protective devices and connection accessories.
- Suitable for commercial, industrial and infrastructure electrical distribution installations.
- Helps simplify the specification of a compatible 250 A incoming protective device.
- Suitable for professional panelboard installation, maintenance and refurbishment projects.
- Genuine ABB product identified by order code 1TVS151800S3364.
Key Features
- ABB Protecta Power Enclosures product range.
- EPX-2503MCCB incoming moulded case circuit breaker.
- 250 A rated current.
- Three-pole (3P) circuit breaker configuration.
- ABB Tmax XT4 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 panelboard incoming positions.
- Supports integration with a dedicated XT4 incoming connection kit.
- ABB Protecta Power literature identifies a maximum XT4 incoming cable capacity of 150 mm², subject to terminal and installation requirements.
- Suitable for low-voltage three-phase electrical distribution.
- Manufacturer identification code 1TVS151800S3364.
Reliable 250A Incoming Circuit Protection with ABB Tmax XT4 Technology
Incoming circuit protection is an essential part 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 rest of the electrical system.
The ABB EPX-2503MCCB uses the ABB Tmax XT4 platform and a thermal-magnetic TMA trip unit. The thermal element responds to sustained overcurrent conditions, while the magnetic element provides rapid tripping in response to sufficiently high short-circuit currents. This combination makes the device suitable for conventional incoming distribution protection where the specified trip characteristics meet the installation requirements.
Unlike a non-automatic switch disconnector, the EPX-2503MCCB provides automatic overcurrent protection in addition to manual switching. This distinction is important when selecting an incoming device. ABB offers both MCCBs and switch disconnectors within the Protecta Power range, allowing electrical designers to choose the appropriate device according to the required protection and isolation strategy.
The EPX-2503MCCB is listed in ABB's Protecta Power incoming device range alongside the EPX-2504MCCB four-pole thermal-magnetic alternative. ABB also offers electronic-trip XT4 incoming MCCBs for applications requiring the corresponding electronic protection characteristics. The EPX-2503MCCB is specifically the 250 A, three-pole thermal-magnetic version.
For installation within a compatible Protecta Power panelboard, the incoming MCCB must be paired with the correct connection components. ABB identifies the EPX-2503CK as the corresponding 250 A, three-pole XT4 incoming connection kit. This connection kit provides the associated incomer support bracket, shrouding and busbar connectivity components and should be specified separately where required by the assembly arrangement.
ABB's published Protecta Power selection information identifies a 150 mm² maximum incoming cable capacity for XT4 devices. The permitted conductor size depends on the installed terminals, cable construction and manufacturer's installation instructions. Extended front terminal accessories are also available for suitable lug connection arrangements.
The EPX-2503MCCB is an incoming circuit breaker rather than a complete panelboard. The finished assembly requires a compatible enclosure, incoming connection components, outgoing protective devices and any necessary accessories. The installation designer must verify the required breaking capacity, fault level, protection coordination, operating conditions and overall assembly compliance before commissioning.
Typical Applications
- ABB Protecta Power electrical distribution panelboards.
- 250 A three-phase incoming circuit protection.
- Compatible ABB Tmax XT4 incoming MCCB arrangements.
- Commercial building main and sub-distribution systems.
- Industrial low-voltage electrical distribution installations.
- Manufacturing facilities and production equipment distribution.
- Electrical switchrooms and MCCB panelboard assemblies.
- Office buildings, retail premises and commercial developments.
- Warehouses, logistics centres and distribution facilities.
- Educational buildings and institutional electrical infrastructure.
- Industrial workshops and plant distribution systems.
- Electrical panel building and switchgear manufacturing projects.
- Protecta Power incoming device replacement and refurbishment.
- Three-phase distribution systems requiring thermal-magnetic overcurrent protection.
Technical Specifications
| Product group | Protecta Power Enclosures |
|---|---|
| Series | Protecta Power |
| ABB order code | 1TVS151800S3364 |
| Manufacturer product description | 250A 3P MCCB - XT4 |
| Product type | Moulded case circuit breaker (MCCB) |
| Device category | Incoming circuit protection device |
| Rated current | 250 A |
| Number of poles | 3P (three-pole) |
| Device frame | ABB Tmax XT4 |
| 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-2503CK, subject to approved assembly configuration |
| Published XT4 maximum incoming cable capacity | 150 mm², subject to terminal and cable compatibility |
| Available terminal accessory | Extended front terminals for suitable lug connections |
| Supplied product category | Incoming MCCB device |
| System type | Low-voltage electrical power distribution |
| Application | Commercial and industrial three-phase electrical distribution |
| Product classification | 250 A three-pole thermal-magnetic incoming MCCB |
Frequently Asked Questions
What is the ABB EPX-2503MCCB used for?
The ABB EPX-2503MCCB is a 250 A three-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 three-phase incoming circuits.
What is the current rating of the ABB EPX-2503MCCB?
The EPX-2503MCCB has a rated current of 250 A. It uses the ABB Tmax XT4 circuit breaker platform and is designed for compatible Protecta Power incoming distribution arrangements. The complete installation must be assessed against its operating conditions and electrical protection requirements.
What type of trip unit does the ABB EPX-2503MCCB use?
The EPX-2503MCCB 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 XT4 incoming MCCB variants.
What is the difference between the ABB EPX-2503MCCB and EPX-2504MCCB?
The EPX-2503MCCB is a 250 A three-pole thermal-magnetic XT4 MCCB, while the EPX-2504MCCB is the corresponding 250 A four-pole version. The correct choice depends on the electrical distribution arrangement and whether a fourth pole is required.
Does the ABB EPX-2503MCCB include the incoming connection kit?
The EPX-2503MCCB is listed as an incoming MCCB device. ABB identifies the EPX-2503CK as the corresponding 250 A, three-pole XT4 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 solutions support professional low-voltage electrical distribution across commercial, industrial and infrastructure projects. The EPX-2503MCCB combines a 250 A current rating, three-pole ABB Tmax XT4 construction and thermal-magnetic protection technology, providing a coordinated incoming MCCB option for electrical contractors and panel builders assembling compatible Protecta Power distribution systems.
