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ABB SACE Emax 3 E2.3N 1250 ACB 4 Pole 1250A 66kA Ekip Aware LSIG Fixed Rear Terminals
ABB 1SDA128878R1 Emax 3 air circuit breaker with 1250 A rating, Ekip Aware LSIG protection and four-pole fixed configuration for low-voltage electrical distribution systems.
£6,357.47
Why Choose the ABB 1SDA128878R1 Emax 3 Air Circuit Breaker?
The ABB 1SDA128878R1 is a high-performance air circuit breaker (ACB) designed for advanced protection, switching and intelligent management of low-voltage electrical distribution systems. As part of the latest ABB SACE Emax 3 series, it combines reliable circuit protection with advanced electronic control, monitoring capabilities and flexible integration for modern power networks.
The Emax 3 platform builds on ABB’s established air circuit breaker technology, delivering intelligent protection, connectivity and power management functions for demanding industrial and infrastructure applications. It is designed to support efficient operation, improved safety and digital integration within low-voltage installations.
With a 1250 A rated current, E2.3N frame size, Ekip Aware LSIG electronic trip unit and four-pole fixed configuration, the ABB 1SDA128878R1 is suitable for main distribution boards, switchgear assemblies and industrial power control applications requiring dependable protection and monitoring.
Key Advantages
- Advanced ABB SACE Emax 3 air circuit breaker technology for low-voltage distribution systems.
- 1250 A rated current suitable for high-capacity electrical installations.
- Ekip Aware LSIG protection for comprehensive fault monitoring and circuit protection.
- Four-pole fixed design for applications requiring neutral conductor switching.
- Intelligent monitoring and communication capabilities for modern energy systems.
- Reliable performance for industrial, commercial and infrastructure applications.
Key Features
- ABB SACE Emax 3 series air circuit breaker.
- E2.3N 1250 frame configuration.
- Ekip Aware LSIG electronic trip unit.
- 1250 A rated uninterrupted current.
- Four-pole fixed execution.
- Long-time, short-time, instantaneous and ground fault protection functions.
- Designed for IEC low-voltage circuit breaker applications.
- Compatible with ABB digital monitoring and communication solutions.
Reliable Protection for Industrial Power Distribution
Air circuit breakers such as the ABB Emax series protect critical electrical infrastructure by monitoring operating conditions and safely interrupting fault currents. Advanced electronic trip units provide accurate protection settings, improved diagnostics and enhanced system visibility.
The ABB Emax platform is designed for modern electrical networks, combining protection, measurement and communication features to support industrial automation, energy management and intelligent power distribution systems.
Typical Applications
- Industrial electrical distribution systems.
- Main switchboards and power control centres.
- Manufacturing plants and processing facilities.
- Commercial building power infrastructure.
- Energy management and monitoring installations.
- Industrial automation and control systems.
Technical Specifications
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| Trip Unit | LSIG | |
|---|---|---|
| Device Type | ACB | |
| Current | 1250 A | |
| Poles | 4-pole | |
| Phase | Three Phase | |
| Breaking Capacity | 66 kA | |
| Application | Power distribution | |
| Mounting Type | Fixed | |
| Product type | Air circuit breaker (ACB) | |
| Model | 1SDA128878R1 | |
| Frame size | E2.3N | |
| Rated current | 1250 A | |
| Trip unit | Ekip Aware LSIG | |
| Series | SACE Emax 3 | |
| Manufacturer | ABB | |
| Number of poles | 4 | |
| Installation type | Fixed | |
| HS Code | 85362090 |
Frequently Asked Questions
What is the ABB 1SDA128878R1 used for?
The ABB 1SDA128878R1 is an Emax 3 air circuit breaker used for protection and switching in low-voltage electrical distribution systems.
What is the rated current of this circuit breaker?
The ABB 1SDA128878R1 has a rated current of 1250 A.
Which trip unit is fitted to this breaker?
The breaker is fitted with an Ekip Aware LSIG electronic trip unit providing advanced protection functions.
How many poles does the ABB 1SDA128878R1 have?
This model features a four-pole fixed configuration.
Where is this breaker typically installed?
The ABB 1SDA128878R1 is typically installed in low-voltage switchgear, main distribution boards and industrial electrical systems.
Trusted by Electrical Engineers Worldwide
ABB SACE Emax air circuit breakers are widely used by electrical engineers and system integrators to deliver dependable protection, intelligent monitoring and efficient control across modern low-voltage distribution networks.
