Why Choose the ABB 1SDA128834R1 Emax 3 Air Circuit Breaker?
The ABB 1SDA128834R1 is an Emax 3 E2.3N 2500 air circuit breaker featuring a 2500 A rated current, 3-pole fixed configuration, rear horizontal terminals and an Ekip Aware LSIG electronic release for comprehensive low-voltage circuit protection.
Key Advantages
- High current capacity: Rated for continuous operation up to 2500 A in demanding low-voltage power distribution systems.
- Comprehensive LSIG protection: Provides long-time, short-time, instantaneous and earth-fault protection functions.
- High short-circuit performance: E2.3N technology provides a 66 kA ultimate short-circuit breaking capacity at 440 V and a 66 kA short-time withstand current for 1 s.
- Fixed installation: The 3-pole fixed construction provides a robust solution for switchboards and power distribution assemblies.
- Rear horizontal connections: HR terminal configuration supports practical integration into compatible switchboard layouts.
- Electronic protection: The Ekip Aware LSIG release provides adjustable protection and intelligent circuit monitoring capabilities.
Key Features
- Manufacturer: ABB
- Product family: SACE Emax 3
- Type: E2.3N 2500 Ekip Aware LSIG
- Order code: 1SDA128834R1
- Poles: 3
- Construction: Fixed
- Terminal configuration: Rear horizontal (HR)
- Release unit: Ekip Aware LSIG electronic release
- Rated current: 2500 A
Advanced LSIG Protection for Low-Voltage Power Distribution
The ABB E2.3N 2500 uses an Ekip Aware LSIG electronic release to provide adjustable protection against the principal overcurrent conditions encountered in low-voltage distribution systems. Long-time protection helps manage sustained overloads, short-time protection supports selective coordination, instantaneous protection responds rapidly to severe short-circuit conditions, and earth-fault protection helps detect faults involving the earth. With a 66 kA Icu and 66 kA Icw at 440 V, the 1SDA128834R1 is designed for high-capacity power distribution applications where reliable circuit protection and strong short-time withstand capability are required.
Typical Applications
- Main incomer and feeder protection in low-voltage switchboards.
- Industrial power distribution systems requiring 2500 A continuous current capacity.
- Commercial and infrastructure electrical distribution assemblies.
- Protection of high-capacity feeders and distribution circuits.
- Switchboard installations requiring fixed 3-pole air circuit breakers with rear horizontal terminals.
- Electrical systems requiring adjustable LSIG protection and high short-circuit withstand capability.
Frequently Asked Questions
What is ABB 1SDA128834R1?
ABB 1SDA128834R1 is an Emax 3 E2.3N 2500 air circuit breaker with an Ekip Aware LSIG electronic release, 3-pole fixed construction and rear horizontal terminals.
What is the rated current of the ABB 1SDA128834R1?
The ABB 1SDA128834R1 has a rated uninterrupted current of 2500 A.
What protection functions does the 1SDA128834R1 provide?
The Ekip Aware LSIG release provides long-time, short-time, instantaneous and earth-fault protection functions.
What is the short-circuit rating of the ABB 1SDA128834R1?
The E2.3N 2500 version has an Icu of 66 kA at 440 V and an Icw of 66 kA for 1 s.
Is the ABB 1SDA128834R1 a fixed circuit breaker?
Yes. The 1SDA128834R1 is a 3-pole fixed Emax 3 air circuit breaker with rear horizontal terminal connections.
ABB 1SDA128834R1 combines 2500 A current capacity, Ekip Aware LSIG electronic protection and 66 kA short-circuit performance in a robust 3-pole fixed Emax 3 air circuit breaker.
Trusted for Modern Power Distribution
Built within ABB's SACE Emax 3 platform, the 1SDA128834R1 provides high-capacity circuit protection for modern low-voltage distribution systems. Its 2500 A rating, adjustable Ekip Aware LSIG protection, fixed 3-pole construction and rear horizontal terminals make it suitable for demanding switchboard and industrial power distribution applications.
