Why Choose ABB 1SDA125618R1?
The ABB 1SDA125618R1 is an E1.3B 1250 Ekip Aware LI 4-pole withdrawable moving part (WMP) for the ABB SACE Emax 3 air circuit breaker platform, providing electronic overcurrent protection for demanding low-voltage power distribution systems.
With a 1250 A rated current and Ekip Aware LI R 1250 electronic release, the 1SDA125618R1 provides adjustable long-time and instantaneous overcurrent protection, supporting flexible protection coordination across high-capacity electrical installations.
Designed for withdrawable Emax 3 applications, this ABB circuit-breaker moving part features four poles, four auxiliary contacts and open/closed position indication, making it suitable for industrial switchboards, commercial distribution systems and critical power infrastructure.
Key Advantages
- ABB SACE Emax 3 E1.3B 1250 platform compatibility
- 1250 A rated current for high-capacity power distribution
- 4-pole configuration for comprehensive circuit protection
- Ekip Aware LI electronic release with adjustable protection functions
- Withdrawable moving-part design for practical switchgear maintenance
- Four auxiliary contacts for control and signalling applications
- Open/closed position indication for operational monitoring
- High interrupting capability for demanding low-voltage installations
Key Features
- Manufacturer: ABB
- Part Number: 1SDA125618R1
- Product Type: E1.3B 1250 Ekip Aware LI 4p WMP
- Product Family: SACE Emax 3
- Rated Current: 1250 A
- Number of Poles: 4
- Release Unit: Ekip Aware LI R 1250
- Protection Functions: Long-time and instantaneous overcurrent protection
- Construction: Withdrawable moving part
- Long-Time Current Setting I1: 500–1250 A
- Instantaneous Current Setting I3: 1875–18750 A
- Auxiliary Contacts: 4
- Position Indication: Open/closed
- EAN: 8056221261708
ABB Emax 3 E1.3B 1250 Ekip Aware LI Protection
The ABB 1SDA125618R1 forms part of the SACE Emax 3 E1.3B 1250 family and uses an Ekip Aware LI R 1250 electronic release. The LI protection arrangement provides adjustable long-time and instantaneous overcurrent protection, allowing the breaker to be configured to suit the protection and discrimination requirements of the electrical installation.
With an I1 adjustment range of 500–1250 A and an I3 adjustment range of 1875–18750 A, the 1SDA125618R1 provides flexibility when coordinating protection across high-capacity low-voltage distribution networks.
The four-pole withdrawable moving-part construction is designed for compatible Emax 3 switchgear assemblies where controlled withdrawal and maintenance of the circuit-breaker moving part are required. Four auxiliary contacts and open/closed position indication support control, signalling and operational monitoring.
Typical Applications
- Industrial low-voltage switchboards
- Commercial power distribution systems
- Manufacturing and process facilities
- Large electrical distribution panels
- Critical power infrastructure
- Data centre and infrastructure power systems
- Generator and transformer distribution systems
- Main incoming and feeder protection
