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ABB SACE Emax 3 E4.3H 4000 ACB 3 Pole 4000A 100kA Ekip Aware LSI Fixed Rear Terminals
ABB 1SDA124928R1 is an Emax 3 E4.3H 4000 Ekip Aware LSI 3-pole fixed air circuit breaker with a 4000 A rated current for high-current low-voltage power distribution and protection.
£16,957.87
Why Choose the ABB 1SDA124928R1?
The ABB 1SDA124928R1 is an SACE Emax 3 E4.3H 4000 Ekip Aware LSI 3-pole fixed air circuit breaker designed for high-current low-voltage power distribution and demanding circuit protection applications.
With a 4000 A rated current, Ekip Aware electronic trip unit and LSI protection, this air circuit breaker provides long-time overload, short-time short-circuit and instantaneous short-circuit protection for critical electrical installations.
The fixed 3-pole configuration with rear horizontal terminals provides a practical solution for integration into compatible switchboards and distribution assemblies requiring high-capacity protection and reliable switching performance.
Key Advantages
- 4000 A rated current for high-capacity power distribution systems
- Ekip Aware electronic release for advanced protection and monitoring
- LSI protection combining long-time, short-time and instantaneous protection functions
- 100 kA Icu at 400 V AC for high short-circuit interruption capability
- 3-pole fixed construction for secure switchboard installation
- Rear horizontal terminals for practical connection within compatible assemblies
- Suitable for demanding industrial, commercial and infrastructure power distribution applications
Key Features
- ABB SACE Emax 3 E4.3H series air circuit breaker
- Order code: 1SDA124928R1
- Rated current: 4000 A
- 3-pole fixed version
- Ekip Aware electronic trip unit
- LSI protection functions
- Rear horizontal connection configuration
- Four auxiliary contacts and open/closed position indication
- Optional motor operator available
High-Current Power Distribution and Protection
The ABB 1SDA124928R1 combines the high-current capability of the Emax 3 E4.3H platform with an Ekip Aware electronic trip unit. Its LSI protection functions provide coordinated protection against overloads, short-time fault currents and high-current instantaneous short-circuit events.
With its fixed 3-pole construction, rear horizontal terminals and 4000 A continuous current rating, this air circuit breaker is designed for integration into high-capacity switchboards, distribution panels and other low-voltage power systems.
Typical Applications
- Low-voltage main distribution switchboards
- Industrial power distribution systems
- Commercial electrical distribution equipment
- High-current feeder protection
- Transformer and generator protection
- Manufacturing and process plants
- Large building electrical infrastructure
- Data centre and critical power distribution systems
Technical Specifications
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| Trip Unit | LSI | |
|---|---|---|
| Device Type | ACB | |
| Current | 4000 A | |
| Poles | 3-pole | |
| Phase | Three Phase | |
| Breaking Capacity | 100 kA | |
| Application | Power distribution | |
| Mounting Type | Fixed | |
| Manufacturer | ABB | |
| Product series | SACE Emax 3 | |
| Product type | E4.3H 4000 Ekip Aware LSI 3p FHR | |
| Order code | 1SDA124928R1 | |
| Rated current (Iu) | 4000 A | |
| Rated voltage (Ue) | 690 V AC | |
| Number of poles | 3 | |
| Installation | Fixed | |
| Trip unit | Ekip Aware | |
| Protection | LSI | |
| Long-time overload setting range | 1600–4000 A | |
| Short-time current setting range | 2400–40000 A | |
| Instantaneous short-circuit setting range | 6000–60000 A | |
| Rated ultimate short-circuit breaking capacity (Icu) | 100 kA at 400 V AC | |
| Connection | Rear horizontal terminals | |
| Auxiliary contacts | 4 changeover contacts | |
| Protection degree | IP30 | |
| Operating control | Push button | |
| Motor operator | Optional | |
| Power loss | 465 W | |
| Net weight | 56 kg | |
| EAN | 8056221254809 | |
| HS Code | 85362090 |
Frequently Asked Questions
What is the ABB 1SDA124928R1?
The ABB 1SDA124928R1 is an SACE Emax 3 E4.3H 4000 Ekip Aware LSI 3-pole fixed air circuit breaker with a 4000 A rated current.
What protection functions does the 1SDA124928R1 provide?
The ABB 1SDA124928R1 provides LSI protection, combining long-time overload, short-time short-circuit and instantaneous short-circuit protection.
What is the rated current of the ABB 1SDA124928R1?
The ABB 1SDA124928R1 has a rated current of 4000 A, with a long-time overload setting range of 1600–4000 A.
Is the ABB 1SDA124928R1 fixed or withdrawable?
The ABB 1SDA124928R1 is supplied as a 3-pole fixed air circuit breaker with rear horizontal terminals.
Where can the ABB 1SDA124928R1 be used?
The ABB 1SDA124928R1 is suitable for high-current low-voltage applications including industrial switchboards, commercial distribution systems, transformer and generator protection, manufacturing facilities and critical power installations.
Trusted by Engineers for High-Performance Power Distribution
The ABB 1SDA124928R1 combines 4000 A switching capability, Ekip Aware electronic protection and a high-performance Emax 3 fixed construction for demanding low-voltage power distribution systems.
