Why Choose the ABB 1SDA100491R1 Tmax XT5H Circuit Breaker?
The ABB 1SDA100491R1 is a high-performance 630 A moulded case circuit breaker (MCCB) designed to protect industrial and commercial low-voltage power distribution systems against overloads and short circuits. Part of the ABB SACE Tmax XT5H range, this three-pole breaker combines high fault-interruption capability with accurate electronic protection in a compact, fixed configuration.
The circuit breaker is fitted with an Ekip Dip LS/I electronic trip unit, providing adjustable long-time overload protection alongside short-circuit and instantaneous protection. This configuration supports dependable fault isolation and effective coordination with other protective devices throughout the electrical installation.
With a rated uninterrupted current of 630 A, an operational voltage of up to 690 V AC and a rated ultimate breaking capacity of 70 kA at 415 V AC, the ABB 1SDA100491R1 is suitable for demanding switchboards, motor control centres, distribution panels and OEM electrical systems.
Key Advantages
- High-performance 630 A moulded case circuit breaker.
- Ekip Dip LS/I electronic trip unit for adjustable protection.
- 70 kA ultimate breaking capacity at 415 V AC.
- Reliable overload and short-circuit protection.
- Compact fixed design for efficient panel integration.
- Front terminals provide straightforward conductor access.
Key Features
- ABB SACE Tmax XT5H series.
- 630 A rated uninterrupted current.
- Three-pole fixed MCCB.
- Ekip Dip LS/I solid-state release.
- Rated operational voltage up to 690 V AC.
- Rated insulation voltage of 1000 V.
- Rated impulse withstand voltage of 8 kV.
- Front terminal connection arrangement.
Dependable Protection for High-Current Distribution Systems
The ABB XT5H 630 monitors current flowing through the connected circuit and disconnects the supply when hazardous overload or short-circuit conditions are detected. This helps prevent damage to cables, switchgear, transformers and connected equipment while improving the overall safety of the installation.
Its Ekip Dip LS/I trip unit enables protection parameters to be matched to the electrical system and connected load. Adjustable long-time and short-circuit protection can help engineers achieve effective coordination while limiting unnecessary disruption to unaffected parts of the installation.
High Breaking Capacity for Demanding Installations
The XT5H performance level is intended for installations with elevated prospective fault currents. Its ultimate breaking capacity of 70 kA at 415 V AC makes the ABB 1SDA100491R1 suitable for use near transformers, main distribution points and industrial supplies where robust interruption performance is essential.
Typical Applications
- Industrial low-voltage switchboards.
- Main and sub-main distribution panels.
- Motor control centres.
- Manufacturing and processing facilities.
- Transformer and generator distribution systems.
- OEM machinery and automation equipment.
