Why Choose the ABB 1SDA068278R1 Tmax XT3S MCCB?
The ABB 1SDA068278R1 is a high-performance SACE Tmax XT3S moulded case circuit breaker (MCCB) designed for reliable circuit protection in industrial and commercial low-voltage electrical systems. As part of the advanced ABB Tmax XT circuit breaker range, it provides dependable protection against overloads and short circuits while supporting safe power distribution in demanding applications.
This MCCB features a robust fixed four-pole construction with front terminals, making it suitable for panel builders, switchgear manufacturers and electrical engineers requiring compact, dependable circuit protection. Its thermomagnetic release provides effective protection for distribution circuits, helping safeguard equipment, cabling and connected loads.
With a rated current of 250 A and a short-circuit breaking capacity of 50 kA at 415 V AC, the ABB 1SDA068278R1 is ideal for power distribution boards, control panels, machinery systems and industrial electrical installations. The fully rated neutral supports four-pole circuit protection where neutral isolation and protection are required.
Key Advantages
- Reliable ABB Tmax XT3S moulded case circuit breaker for low-voltage protection.
- 250 A rated current for industrial and commercial power distribution.
- Four-pole fixed MCCB with fully rated neutral.
- 50 kA breaking capacity at 415 V AC for high fault-level applications.
- Thermomagnetic release for overload and short-circuit protection.
- Front terminal connection for straightforward switchgear and panel installation.
Key Features
- ABB SACE Tmax XT3S series.
- 250 A rated uninterrupted current.
- Four-pole MCCB configuration.
- TMG thermomagnetic release with 250–750 A setting range.
- Fixed version with front terminals.
- Fully rated neutral for four-pole protection.
- Suitable for low-voltage distribution and machinery protection.
- Designed to ABB standards for reliability and long service life.
Reliable Circuit Protection for Electrical Distribution
Moulded case circuit breakers such as the ABB 1SDA068278R1 are used to protect electrical circuits from excessive current caused by overloads or short-circuit faults. By interrupting fault currents quickly and reliably, MCCBs help reduce the risk of equipment damage, downtime and electrical hazards.
The ABB Tmax XT range is widely used in industrial switchboards, distribution panels and machine control systems. Its compact design, high breaking capacity and dependable trip unit technology make it a strong choice for installations where safety, continuity and electrical performance are essential.
Typical Applications
- Low-voltage power distribution panels.
- Industrial switchboards and control cabinets.
- Machinery and automation systems.
- Commercial electrical installations.
- Motor control centres and feeder circuits.
- Four-pole circuit protection with neutral isolation requirements.
