Why Choose the ABB 1SDA068377R1 XT4L 250 TMA MCCB?
The ABB 1SDA068377R1 is a high-performance SACE Tmax XT moulded case circuit breaker (MCCB) designed for dependable low-voltage circuit protection in industrial, commercial and panel-building applications. Also identified as XT4L 250 TMA 250-2500 3p F F, this ABB circuit breaker combines a fixed three-pole format with front terminals and an adjustable thermomagnetic release for reliable overload and short-circuit protection.
Part of the trusted ABB Tmax XT series, this MCCB is engineered for installations requiring high breaking capacity, compact panel design and dependable switching performance. Its fixed mounting format and front terminal configuration support straightforward integration into distribution boards, switchboards and electrical control panels.
With a rated current of 250 A, an XT4L 250 frame and a three-pole configuration, the 1SDA068377R1 is suited to three-phase low-voltage distribution systems. The TMA thermomagnetic trip unit provides adjustable protection with a 250-2500 A range, helping safeguard circuits and connected equipment against overloads and fault currents.
Key Advantages
- High-performance ABB Tmax XT moulded case circuit breaker for low-voltage distribution.
- 250 A rated current for industrial and commercial electrical circuits.
- Three-pole configuration for three-phase power distribution.
- TMA thermomagnetic release with adjustable protection settings.
- Fixed MCCB design with front terminals for efficient switchboard installation.
- XT4L short-circuit performance level for demanding installations.
Key Features
- ABB SACE Tmax XT series.
- XT4L 250 frame size.
- 250 A rated current.
- Three-pole MCCB construction.
- TMA adjustable thermomagnetic trip unit.
- 250-2500 A protection setting range.
- Fixed mounting format.
- Front terminal connection for panels and switchboards.
Reliable Circuit Protection for Low-Voltage Distribution
Moulded case circuit breakers such as the ABB 1SDA068377R1 are used to protect electrical circuits from excessive current, helping reduce the risk of equipment damage, unplanned downtime and unsafe fault conditions. The adjustable thermomagnetic release provides dependable overload protection together with short-circuit tripping for demanding installations.
The ABB Tmax XT range is widely used by panel builders, electrical contractors and maintenance engineers. Its compact construction, strong switching performance and flexible accessory platform make it suitable for modern distribution systems, machinery supply circuits and industrial control panels.
Typical Applications
- Low-voltage electrical distribution boards.
- Industrial switchboards and control panels.
- Commercial building power distribution.
- Machinery and equipment supply circuits.
- Motor control centres and panel boards.
- Three-phase installations requiring compact MCCB protection.
