Why Choose the ABB 1SDA068359R1 XT4H 250 MCCB?
The ABB 1SDA068359R1 is a high-performance Tmax XT4H moulded case circuit breaker (MCCB) designed to provide reliable protection for low-voltage electrical distribution systems. As part of the advanced ABB SACE Tmax XT range, this fixed four-pole circuit breaker combines compact dimensions, high breaking capacity and robust ABB engineering for demanding industrial and commercial environments.
Featuring a TMA thermomagnetic trip unit, the XT4H delivers dependable overload and short-circuit protection with adjustable magnetic protection for fault conditions. Its fixed construction and front terminal layout support efficient installation in switchboards, panel boards, motor control centres and OEM machinery.
With a 250 A rated current, four-pole configuration and rated operational voltage up to 690 V AC, the ABB 1SDA068359R1 is ideal for power distribution circuits requiring reliable switching, safe protection and long-term operational performance.
Key Advantages
- High-performance ABB Tmax XT4H moulded case circuit breaker.
- 250 A rated current for industrial and commercial power distribution.
- Four-pole fixed design with front terminals.
- TMA thermomagnetic release for overload and short-circuit protection.
- Adjustable instantaneous protection from 1250 to 2500 A.
- Compact MCCB design suitable for switchboards, panels and OEM equipment.
Key Features
- ABB SACE Tmax XT circuit breaker range.
- XT4H 250 frame size.
- 250 A rated current.
- 250 A rated uninterrupted current.
- Four-pole MCCB configuration.
- Fixed mounting design.
- Front terminal connections.
- Neutral rated at 50% of phase current.
- Thermal magnetic tripping mechanism with lever reset actuator.
Reliable Circuit Protection for Industrial Installations
Moulded case circuit breakers such as the ABB XT4H protect electrical installations by interrupting fault currents and preventing damage caused by overloads and short circuits. This supports safer operation while helping protect cables, machinery and downstream electrical equipment.
The ABB Tmax XT range is widely used in low-voltage distribution systems where compact design, dependable switching and high protection performance are required. The 1SDA068359R1 provides a robust solution for engineers building resilient industrial and commercial electrical systems.
Typical Applications
- Industrial power distribution panels.
- Main and sub-distribution switchboards.
- Motor control centres.
- Machinery and OEM electrical systems.
- Commercial building services.
- Infrastructure and process control installations.
