Why Choose the ABB 1SDA100550R1 Tmax XT5H Circuit Breaker?
The ABB 1SDA100550R1 is a high-performance 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 ABB SACE Tmax XT5H series, this four-pole circuit breaker combines excellent interruption performance with advanced electronic protection for demanding electrical installations.
The breaker is equipped with the Ekip Dip LS/I electronic trip unit, offering adjustable long-time overload, short-time and instantaneous short-circuit protection. These configurable protection settings enable accurate coordination between protective devices, improving installation reliability while reducing unnecessary downtime.
With a rated uninterrupted current of 400 A, a rated operating voltage of up to 690 V AC and the high-performance XT5H interruption rating, the ABB 1SDA100550R1 is ideal for industrial switchboards, distribution panels, motor control centres and OEM electrical equipment where dependable fault protection is essential.
Key Advantages
- High-performance 400 A moulded case circuit breaker.
- Ekip Dip LS/I electronic trip unit for accurate protection coordination.
- High fault interruption capability for demanding industrial applications.
- Adjustable overload, short-time and instantaneous protection.
- Compact fixed design for efficient panel installation.
- Four-pole configuration enables protection and switching of the neutral conductor.
Key Features
- ABB SACE Tmax XT5H series.
- 400 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.
