Why Choose the ABB 1SDA068550R1 SACE Tmax XT4H MCCB?
The ABB 1SDA068550R1 is a high-performance SACE Tmax XT4H moulded case circuit breaker (MCCB) designed for reliable overload, short-circuit and earth fault protection in low voltage electrical distribution systems. As part of ABB’s trusted Tmax XT circuit breaker range, this four-pole fixed breaker combines compact installation, accurate electronic protection and dependable fault interruption for demanding industrial and commercial applications.
This MCCB is fitted with an Ekip C Dip LSIG solid-state electronic release, providing long-time, short-time, instantaneous and ground fault protection functions for improved selectivity and system coordination. Its fixed configuration with front terminals allows straightforward installation in switchboards, distribution boards, control panels and low voltage power assemblies.
With a rated current of 250 A, a 690 V AC rated operational voltage and a high breaking capacity of 70 kA at 415 V AC, the ABB 1SDA068550R1 is well suited to installations requiring compact, reliable and adjustable circuit protection.
Key Advantages
- High-performance ABB SACE Tmax XT4H moulded case circuit breaker.
- 250 A rated current for demanding low voltage distribution circuits.
- Four-pole fixed configuration for three-phase and neutral applications.
- Ekip C Dip LSIG electronic trip unit for long-time, short-time, instantaneous and ground fault protection.
- 70 kA breaking capacity at 415 V AC for strong fault interruption performance.
- Compact XT4 frame design for efficient switchboard installation.
Key Features
- ABB SACE Tmax XT series.
- XT4H 250 frame moulded case circuit breaker.
- 250 A rated current.
- Four-pole fixed breaker.
- Ekip C Dip LSIG solid-state electronic release.
- 690 V AC rated operational voltage.
- Front terminal connection.
- Designed for industrial and commercial low voltage power distribution.
Electronic Protection for Low Voltage Distribution
Moulded case circuit breakers such as the ABB 1SDA068550R1 are used to disconnect electrical circuits during overload, short-circuit or earth fault conditions, helping protect cables, switchgear, machinery and downstream equipment from damage. The XT4H frame provides strong fault interruption performance in a compact breaker format.
The Ekip C Dip LSIG electronic release supports adjustable long-time, short-time, instantaneous and ground fault protection, helping engineers improve selectivity and coordination across modern low voltage distribution systems. This makes the breaker suitable for installations where protection accuracy, compact panel design and reliable operation are essential.
Typical Applications
- Industrial low voltage switchboards.
- Commercial power distribution panels.
- Electrical control panels and feeder circuits.
- Motor control centres and machinery panels.
- Building services electrical installations.
- Transformer, generator and distribution circuit protection.
