Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
ABB SACE Emax 3 E2.3S 2500 ACB 4 Pole 2500A 85kA Ekip Aware LSIG Fixed Rear Terminals
ABB 1SDA128890R1 Emax 3 air circuit breaker with 2500 A rating, Ekip Aware LSIG protection and four-pole fixed configuration for low-voltage electrical distribution systems.
£11,699.96
Why Choose the ABB 1SDA128890R1 Emax 3 Air Circuit Breaker?
The ABB 1SDA128890R1 is a high-performance air circuit breaker (ACB) designed for advanced protection, switching and intelligent power management in low-voltage electrical distribution systems. As part of the innovative ABB SACE Emax 3 series, it combines reliable circuit interruption with intelligent monitoring, enhanced diagnostics and scalable connectivity for modern industrial and infrastructure power networks.
The Emax 3 platform represents ABB’s next generation of open circuit breakers, providing advanced protection, power quality measurement, asset management features and secure communication capabilities to support future-ready electrical installations.
With an E2.3S frame size, 2500 A rated current, Ekip Aware LSIG electronic trip unit and four-pole fixed configuration with horizontal rear terminals, the ABB 1SDA128890R1 is designed for demanding low-voltage switchgear, main distribution boards and critical power applications.
Key Advantages
- Advanced ABB SACE Emax 3 air circuit breaker technology for modern electrical distribution systems.
- 2500 A rated current suitable for high-capacity industrial power installations.
- Ekip Aware LSIG protection for comprehensive overload, short-circuit and earth fault protection.
- Four-pole fixed design for applications requiring neutral conductor switching.
- Intelligent monitoring and communication functions for energy management systems.
- Reliable protection and switching performance for critical electrical infrastructure.
Key Features
- ABB SACE Emax 3 series air circuit breaker.
- E2.3S 2500 frame configuration.
- Ekip Aware LSIG electronic trip unit.
- 2500 A rated uninterrupted current.
- Four-pole fixed execution.
- Horizontal rear terminal connection.
- Long-time, short-time, instantaneous and ground fault protection functions.
- Supports advanced digital communication and power management solutions.
Reliable Protection for Industrial Power Distribution
Air circuit breakers protect essential electrical systems by monitoring operating conditions and safely disconnecting circuits during overloads or fault conditions. The ABB Emax 3 range combines advanced protection with intelligent measurement, diagnostics and communication capabilities to improve reliability and operational visibility.
Designed for industrial automation, energy management and smart distribution applications, Emax 3 circuit breakers provide adaptable solutions that support increased system efficiency, cybersecurity and long-term operational continuity.
Typical Applications
- Industrial power distribution systems.
- Main low-voltage switchboards.
- Manufacturing plants and processing facilities.
- Commercial and infrastructure power networks.
- Energy management and monitoring installations.
- Critical power and industrial automation systems.
Technical Specifications
Tick the specs you need, then view products that match.
| Trip Unit | LSIG | |
|---|---|---|
| Device Type | ACB | |
| Current | 2500 A | |
| Poles | 4-pole | |
| Phase | Three Phase | |
| Breaking Capacity | 85 kA | |
| Application | Power distribution | |
| Mounting Type | Fixed | |
| Manufacturer | ABB | |
| Series | SACE Emax 3 | |
| Model | 1SDA128890R1 | |
| Product type | Air circuit breaker (ACB) | |
| Frame size | E2.3S | |
| Rated current | 2500 A | |
| Trip unit | Ekip Aware LSIG | |
| Number of poles | 4 | |
| Installation type | Fixed | |
| Terminal type | Horizontal rear terminals | |
| HS Code | 85362090 |
Frequently Asked Questions
What is the ABB 1SDA128890R1 used for?
The ABB 1SDA128890R1 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 1SDA128890R1 has a rated current of 2500 A.
Which trip unit is fitted to this breaker?
The breaker is fitted with an Ekip Aware LSIG electronic trip unit providing advanced protection and monitoring functions.
How many poles does the ABB 1SDA128890R1 have?
This model features a four-pole fixed configuration.
Where is this breaker typically installed?
The ABB 1SDA128890R1 is typically installed in low-voltage switchgear, main distribution boards and industrial electrical systems.
Trusted by Electrical Engineers Worldwide
ABB SACE Emax 3 air circuit breakers are used by electrical engineers and system integrators to deliver dependable protection, intelligent monitoring and efficient control across modern low-voltage distribution networks.
