Why Choose the ABB 1SDA128973R1 SACE Emax 3 E6.3V 6300 Air Circuit Breaker?
The ABB 1SDA128973R1 is a SACE Emax 3 E6.3V 6300 air circuit breaker designed for very high-current low-voltage power distribution and switching applications. This 3-pole withdrawable circuit breaker is rated at 6300 A and is equipped with an Ekip Aware LSIG trip unit for comprehensive circuit protection and monitoring.
As part of the ABB SACE Emax 3 range, the E6.3V 6300 combines very high-current switching capability with advanced electronic protection. The Ekip Aware LSIG trip unit provides long-time, short-time, instantaneous and earth-fault protection functions for demanding low-voltage distribution systems.
The 1SDA128973R1 has a rated current of 6300 A and a rated ultimate short-circuit breaking capacity (Icu) of 150 kA at 415 V. It is supplied in withdrawable configuration as the moving part only (WMP); the corresponding fixed part is ordered separately.
Key Advantages
- Very high rated current of 6300 A for high-capacity low-voltage distribution systems.
- 150 kA ultimate short-circuit breaking capacity (Icu) at 415 V.
- 3-pole configuration for three-phase electrical distribution applications.
- Ekip Aware LSIG trip unit providing comprehensive electronic protection functions.
- Withdrawable moving-part configuration supports practical switchgear installation and maintenance arrangements.
- Moving part only (WMP), allowing the fixed part to be specified separately to suit the installation.
Key Features
- ABB SACE Emax 3 air circuit breaker.
- E6.3V 6300 frame and rating.
- Rated current In: 6300 A.
- 3-pole construction.
- Ultimate short-circuit breaking capacity Icu: 150 kA at 415 V.
- Ekip Aware LSIG electronic trip unit.
- LSIG protection: long-time, short-time, instantaneous and earth-fault functions.
- Withdrawable version.
- Supplied as moving part only (WMP).
- Fixed part ordered separately.
Advanced Protection for Low-Voltage Power Distribution
The ABB SACE Emax 3 platform is designed for reliable switching and protection in low-voltage power distribution systems. As an air circuit breaker, the 1SDA128973R1 provides a very high-capacity switching solution for installations where dependable protection of high-current feeders and distribution circuits is required.
The Ekip Aware LSIG trip unit combines electronic protection functions for long-time overload, short-time fault, instantaneous short-circuit and earth-fault conditions. Its integration with the E6.3V 6300 circuit breaker makes the 1SDA128973R1 suitable for demanding industrial and infrastructure power distribution applications requiring a 6300 A rated circuit breaker with 150 kA Icu at 415 V.
Typical Applications
- Low-voltage power distribution systems.
- Industrial electrical switchboards and distribution panels.
- Very high-current feeder protection and switching.
- Incoming circuit protection and switching.
- Commercial and infrastructure electrical distribution.
- Industrial power management systems.
- Withdrawable low-voltage switchgear assemblies.
- Applications requiring 6300 A rated current and 150 kA Icu at 415 V.
