Why Choose the ABB 1SDA100551R1 Tmax XT5H Circuit Breaker?
The ABB 1SDA100551R1 is a high-performance 630 A moulded case circuit breaker (MCCB) engineered to provide reliable overload and short-circuit protection for industrial and commercial low-voltage power distribution systems. As part of the ABB SACE Tmax XT5H series, this four-pole circuit breaker combines high interruption performance with advanced electronic protection for demanding electrical installations.
The breaker is equipped with the Ekip Dip LS/I electronic trip unit, providing adjustable long-time overload, short-time and instantaneous short-circuit protection. These configurable protection settings enable accurate coordination between protective devices, improving system reliability while reducing unnecessary downtime.
With a rated uninterrupted current of 630 A, a rated operating voltage of up to 690 V AC and the high-performance XT5H interruption rating, the ABB 1SDA100551R1 is ideally suited to industrial switchboards, commercial distribution panels, motor control centres and OEM electrical equipment where dependable fault protection is essential.
Key Advantages
- High-performance 630 A moulded case circuit breaker.
- Ekip Dip LS/I electronic trip unit for accurate protection coordination.
- High breaking capacity for demanding industrial applications.
- Adjustable overload, short-time and instantaneous protection.
- Compact fixed design simplifies switchboard installation.
- Four-pole configuration enables protection and switching of the neutral conductor.
Key Features
- ABB SACE Tmax XT5H series.
- 630 A rated uninterrupted current.
- Four-pole fixed MCCB.
- Ekip Dip LS/I 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 continuously monitors electrical circuits and disconnects the supply whenever overload or short-circuit conditions occur. This protects cables, motors, transformers and other valuable electrical equipment while improving installation safety and reducing costly downtime.
The advanced Ekip Dip LS/I electronic trip unit enables engineers to optimise protection settings for individual installations, making the breaker suitable for systems requiring dependable selectivity and coordinated fault isolation.
Typical Applications
- Industrial switchboards.
- Commercial distribution panels.
- Motor control centres.
- Manufacturing facilities.
- OEM machinery.
- Low-voltage power distribution systems.
