Why Choose the ABB 1SDA100489R1 Tmax XT5H Circuit Breaker?
The ABB 1SDA100489R1 is a premium 400 A moulded case circuit breaker (MCCB) designed to provide dependable overload and short-circuit protection for industrial and commercial low-voltage power distribution systems. As part of the advanced ABB SACE Tmax XT5H range, this three-pole circuit breaker combines high interruption performance with an advanced electronic protection unit for demanding electrical installations.
Fitted with the Ekip Dip LSI electronic trip unit, the breaker provides adjustable long-time overload, short-time delay and instantaneous short-circuit protection. These protection functions enable accurate coordination with downstream protective devices, improving system selectivity and operational continuity.
With a rated uninterrupted current of 400 A, a rated operating voltage of up to 690 V AC and a high breaking capacity, the ABB 1SDA100489R1 is suitable for industrial switchboards, distribution panels, motor control centres and OEM machinery where reliable circuit protection is essential.
Key Advantages
- High-performance 400 A moulded case circuit breaker.
- Ekip Dip LSI electronic trip unit for precise protection.
- High fault interruption capability for demanding installations.
- Adjustable overload, short-time and instantaneous protection.
- Compact fixed design simplifies panel installation.
- Front terminals allow straightforward cable connection and maintenance.
Key Features
- ABB SACE Tmax XT5H series.
- 400 A rated uninterrupted current.
- Three-pole fixed MCCB.
- Ekip Dip LSI electronic release.
- Rated operating voltage up to 690 V AC.
- Rated insulation voltage of 1000 V.
- Rated impulse withstand voltage of 8 kV.
- Front terminal connection arrangement.
Reliable Protection for Industrial Power Distribution
The ABB XT5H series moulded case circuit breakers continuously monitor electrical circuits and disconnect the supply whenever overload or short-circuit conditions occur. This helps protect valuable equipment, minimise downtime and improve the safety of industrial electrical installations.
The integrated Ekip Dip LSI trip unit allows engineers to fine-tune protection settings, making the breaker suitable for complex power distribution systems requiring selective coordination and dependable fault isolation.
Typical Applications
- Industrial switchboards.
- Commercial distribution panels.
- Motor control centres.
- Manufacturing facilities.
- OEM machinery.
- Low-voltage power distribution systems.
