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ABB SACE Emax 3 E2.3N 1250 ACB 3 Pole 1250A 66kA Ekip Aware LSI Fixed Rear Terminals
The ABB 1SDA124818R1 is an E2.3N 1250 three-pole fixed Emax 3 air circuit breaker with Ekip Aware LSI electronic protection and rear horizontal connections.
£4,581.30
ABB 1SDA124818R1 E2.3N 1250 Ekip Aware LSI 3P FHR Air Circuit Breaker
The ABB 1SDA124818R1 is an Emax 3 E2.3N 1250 air circuit breaker featuring an Ekip Aware LSI electronic trip unit, three-pole fixed construction and rear horizontal connections for dependable low-voltage power distribution.
With a rated current of 1250 A and a rated voltage of up to 690 V AC, this SACE Emax 3 circuit breaker provides long-time, short-time and instantaneous protection for demanding industrial and commercial electrical distribution systems.
The fixed FHR configuration provides rear horizontal terminals and four auxiliary contacts, making the ABB 1SDA124818R1 suitable for integration into compatible switchboards, main distribution boards and high-capacity feeder applications.
Key Advantages
- 1250 A rated current for high-capacity power distribution.
- Ekip Aware electronic trip unit with LSI protection functions.
- Three-pole fixed configuration for straightforward switchboard installation.
- 66 kA interrupting capability at 440 V AC.
- 66 kA short-time withstand capability for 1 s.
- Rear horizontal terminal arrangement for practical panel integration.
- Four auxiliary contacts for additional control and signalling functions.
Key Features
- ABB SACE Emax 3 E2.3N air circuit breaker.
- Order code: 1SDA124818R1.
- Ekip Aware LSI electronic release.
- Long-time, short-time and instantaneous protection functions.
- 1250 A rated current.
- 690 V AC rated voltage.
- 3-pole fixed construction.
- Rear horizontal terminal configuration.
- Four auxiliary contacts.
- Open/closed position indication.
- Suitable for high-capacity low-voltage distribution applications.
High-Capacity Electronic Circuit Protection
The ABB 1SDA124818R1 combines the Emax 3 E2.3N platform with Ekip Aware LSI electronic protection to provide controlled interruption and protection for high-current distribution circuits. Its LSI protection arrangement addresses overload and short-circuit conditions through configurable long-time, short-time and instantaneous functions.
The 1250 A frame is designed for high-capacity low-voltage distribution, while the fixed three-pole construction and rear horizontal terminals support integration into compatible switchboards. The 66 kA interrupting and short-time withstand ratings provide a robust protection capability for demanding electrical distribution environments.
Typical Applications
- Main low-voltage distribution boards.
- Industrial power distribution systems.
- Commercial electrical switchboards.
- High-current feeder protection.
- Manufacturing and process installations.
- Infrastructure and building power systems.
- Power distribution and electrical protection assemblies.
Technical Specifications
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| Trip Unit | LSI | |
|---|---|---|
| Device Type | ACB | |
| Current | 1250 A | |
| Poles | 3-pole | |
| Phase | Three Phase | |
| Breaking Capacity | 66 kA | |
| Application | Power distribution | |
| Mounting Type | Fixed | |
| Manufacturer | ABB | |
| Product family | SACE Emax 3 | |
| Series | E2.3N | |
| Order code | 1SDA124818R1 | |
| Rated current | 1250 A | |
| Rated voltage | 690 V AC | |
| Mounting configuration | Fixed | |
| Trip unit | Ekip Aware | |
| Protection | LSI | |
| Long-time protection setting I1 | 500–1250 A | |
| Instantaneous protection setting I3 | 1875–18750 A | |
| Rated ultimate short-circuit breaking capacity Icu | 66 kA at 440 V AC | |
| Short-time withstand current Icw | 66 kA for 1 s | |
| Terminal arrangement | Rear horizontal | |
| Configuration | FHR | |
| Auxiliary contacts | 4 | |
| EAN | 8056221253703 | |
| HS Code | 85362090 |
Frequently Asked Questions
What is the ABB 1SDA124818R1?
The ABB 1SDA124818R1 is an Emax 3 E2.3N 1250 three-pole fixed air circuit breaker with an Ekip Aware LSI electronic trip unit.
What is the rated current of the 1SDA124818R1?
The ABB 1SDA124818R1 has a rated current of 1250 A.
What protection functions does the Ekip Aware LSI release provide?
The Ekip Aware LSI release provides long-time, short-time and instantaneous protection functions for managing overload and short-circuit conditions.
What is the short-circuit rating of the ABB 1SDA124818R1?
The ABB 1SDA124818R1 has an Icu of 66 kA at 440 V AC and an Icw of 66 kA for 1 s.
Where can the ABB 1SDA124818R1 be used?
The 1SDA124818R1 is suitable for high-capacity low-voltage distribution applications including industrial switchboards, commercial distribution systems and high-current feeder circuits.
Trusted for Industrial Power Distribution
The ABB 1SDA124818R1 E2.3N 1250 Ekip Aware LSI 3P FHR combines high-current switching capability, electronic LSI protection and a fixed rear-horizontal configuration for dependable integration into demanding low-voltage power distribution systems.
