Why Choose the ABB 1SDA124812R1 Emax 3 Air Circuit Breaker?
The ABB 1SDA124812R1 is a high-performance low-voltage air circuit breaker (ACB) designed for reliable protection and switching in demanding electrical distribution systems. As part of the advanced ABB SACE Emax 3 E2.3H series, it combines high short-circuit breaking capability with intelligent Ekip Aware electronic release technology for modern power distribution applications.
This circuit breaker features a 1000 A rated permanent current, three-pole fixed construction and LI protection functions for overload and instantaneous short-circuit protection. Its rear horizontal connection arrangement provides a practical solution for integration into low-voltage switchboards and electrical distribution assemblies.
The E2.3H 1000 Ekip Aware LI configuration provides a 100 kA rated short-circuit breaking capacity at 400 V AC. With adjustable overload and instantaneous short-circuit protection settings, the breaker is well suited to high-current industrial, commercial and infrastructure power distribution systems.
Key Advantages
- High-capacity ABB SACE Emax 3 air circuit breaker for low-voltage power distribution.
- 1000 A rated permanent current suitable for high-current electrical installations.
- Three-pole fixed configuration for straightforward switchboard integration.
- Ekip Aware LI electronic protection provides overload and instantaneous short-circuit protection.
- 100 kA short-circuit breaking capacity at 400 V AC for demanding electrical installations.
- Rear horizontal main circuit connection for practical switchboard installation.
- Four auxiliary contacts provide additional status and control signalling.
- Electronic Ekip Aware release supports intelligent protection and monitoring functionality.
Key Features
- ABB SACE Emax 3 E2.3H series.
- 1000 A rated permanent current.
- Three-pole fixed circuit-breaker configuration.
- Ekip Aware LI electronic release.
- 400–1000 A adjustable overload protection setting.
- 1500–15000 A adjustable instantaneous short-circuit setting.
- 100 kA rated short-circuit breaking capacity at 400 V AC.
- 690 V rated operational voltage.
- Rear horizontal main circuit connection.
- Bolt connection for the main circuit.
- Four auxiliary contacts with change-over configuration.
- Open/closed circuit-breaker position indication.
- IP30 protection rating.
Reliable High-Current Power Distribution Protection
Air circuit breakers such as the ABB Emax 3 E2.3H provide dependable protection and switching for high-current low-voltage electrical distribution systems. The Ekip Aware electronic release manages the configured LI protection functions, helping protect conductors and connected equipment against damaging overload and short-circuit conditions.
The fixed three-pole construction and rear horizontal connection arrangement make the 1SDA124812R1 suitable for integration into switchboards, distribution panels and industrial power systems. Its adjustable protection settings allow the breaker to be configured according to the requirements of the connected electrical installation.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial power distribution systems.
- Commercial building electrical distribution.
- High-current feeder protection.
- Industrial electrical panels and switchgear.
- Infrastructure and power management installations.
- High short-circuit level distribution assemblies.
