Why Choose the ABB 1SDA100490R1 Tmax XT5H Circuit Breaker?
The ABB 1SDA100490R1 is a high-performance 400 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 three-pole circuit breaker combines a high breaking capacity with an advanced electronic trip unit, making it ideal for demanding electrical installations.
The breaker incorporates the Ekip Dip LSI electronic trip unit, providing adjustable long-time overload, short-time delay and instantaneous short-circuit protection. These configurable protection functions enable improved discrimination between protective devices, helping maximise system reliability and minimise unnecessary downtime.
With a rated uninterrupted current of 400 A, an operating voltage of up to 690 V AC and a 70 kA breaking capacity, the ABB 1SDA100490R1 is ideally suited to industrial switchboards, motor control centres, distribution panels and OEM electrical equipment requiring dependable high-performance protection.
Key Advantages
- High-performance 400 A moulded case circuit breaker.
- Ekip Dip LSI electronic trip unit for accurate protection coordination.
- 70 kA breaking capacity for demanding fault conditions.
- Adjustable long-time, short-time and instantaneous protection.
- Compact fixed design for efficient panel installation.
- Front terminals simplify installation 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 continuously monitors electrical circuits and disconnects the supply whenever overload or short-circuit conditions occur. This protects cables, transformers, motors and other critical equipment while improving installation safety and reducing costly downtime.
Its advanced Ekip Dip LSI electronic trip unit enables precise adjustment of protection parameters, making the breaker suitable for installations requiring selective coordination and dependable fault isolation.
Typical Applications
- Industrial switchboards.
- Commercial distribution panels.
- Motor control centres.
- Manufacturing plants.
- OEM machinery.
- Low-voltage power distribution systems.
