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1SDA071777R1 ABB E4.2N 3200 Ekip G Touch LSIG 4P Air Circuit Breaker
ABB 1SDA071777R1 SACE Emax 2 E4.2N fixed four-pole 3200 A air circuit breaker with an Ekip G Touch LSIG electronic trip unit for generator and high-current low-voltage power distribution protection.
£15,947.41
Why Choose the ABB E4.2N 3200 Ekip G Touch LSIG 4P Air Circuit Breaker?
The ABB 1SDA071777R1 is a high-performance SACE Emax 2 E4.2N air circuit breaker (ACB) rated at 3200 A, designed for generator, transformer and demanding low-voltage power distribution protection. Part of the ABB SACE Emax 2 series, this fixed four-pole circuit breaker combines robust short-circuit performance with the advanced Ekip G Touch LSIG electronic trip unit.
The E4.2N 3200 incorporates the Ekip G Touch LSIG solid-state release, providing long-time overload, short-time selective, instantaneous short-circuit and earth-fault protection together with generator-specific protection functions. The Ekip G Touch platform also integrates advanced measurement capabilities, making this breaker particularly suitable for generating plants and critical power systems where precise protection and electrical monitoring are required.
With a rated uninterrupted current of 3200 A, a rated operational voltage up to 690 V AC and an ultimate short-circuit breaking capacity of 66 kA across major low-voltage operating voltages, the E4.2N provides dependable protection for high-current installations. This version is a fixed, four-pole breaker with rear horizontal terminals and is fitted with four auxiliary changeover contacts plus circuit-breaker open/closed position indication.
Key Advantages
- High-performance ABB SACE Emax 2 air circuit breaker for generator and power distribution applications.
- 3200 A rated uninterrupted current for high-current electrical installations.
- Four-pole configuration for comprehensive switching and protection.
- Advanced Ekip G Touch LSIG electronic trip unit with generator-specific protection functionality.
- LSIG functionality provides overload, selective short-circuit, instantaneous and earth-fault protection.
- 66 kA ultimate short-circuit breaking capacity across major operating voltages up to 690 V AC.
- 66 kA short-time withstand current for 1 s to support selective coordination.
- Fixed installation with rear horizontal terminals for switchboard integration.
Key Features
- ABB SACE Emax 2 E4.2N frame.
- 3200 A rated uninterrupted current.
- Four-pole construction.
- Fixed circuit-breaker execution.
- Rear horizontal terminals.
- Ekip G Touch LSIG electronic protection release.
- Adjustable long-time overload protection.
- Adjustable short-time selective protection.
- Adjustable instantaneous short-circuit protection.
- Integrated earth-fault protection.
- Generator-specific protection and advanced measurement functionality.
- Touch-sensitive interface for configuration and operating information.
- Four auxiliary changeover contacts and breaker open/closed position indication.
Advanced Generator and Distribution Protection
ABB SACE Emax 2 air circuit breakers provide switching and protection for low-voltage electrical networks, while the Ekip G Touch platform extends these capabilities for generator applications. The E4.2N combines a substantial 3200 A current rating with 66 kA breaking and short-time withstand performance, making it suitable for generator switchboards, industrial plants and critical power distribution systems.
The Ekip G Touch LSIG release combines long-time overload (L), short-time selective (S), instantaneous short-circuit (I) and earth-fault (G) protection with generator-specific functions and integrated measurement capabilities. Adjustable protection settings support selective coordination and enable the breaker to be configured for the operating requirements of complex generating and distribution installations.
Typical Applications
- Generator protection and generator switchboards.
- Standby and emergency power systems.
- Main low-voltage distribution switchboards.
- Industrial power distribution systems.
- Manufacturing and process plants.
- Transformer and installation protection.
- Critical power distribution systems.
- High-current feeder protection and switching.
Technical Specifications
| Series | SACE Emax 2 |
|---|---|
| ABB order code | 1SDA071777R1 |
| Product type | Air circuit breaker (ACB) |
| Frame | E4.2N |
| Rated uninterrupted current (Iu) | 3200 A |
| Number of poles | 4 |
| Current type | AC |
| Installation | Fixed |
| Terminal arrangement | Rear horizontal |
| Trip unit | Ekip G Touch LSIG |
| Release type | Solid-state electronic |
| Protection functions | L, S, I and G |
| Rated operational voltage (Ue) | 690 V AC |
| Rated insulation voltage (Ui) | 1000 V AC |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Ultimate short-circuit breaking capacity (Icu) | 66 kA at 380–690 V AC |
| Service short-circuit breaking capacity (Ics) | 100% of Icu |
| Rated short-time withstand current (Icw) | 66 kA for 1 s |
| Overload release adjustment range | 1280–3200 A |
| Short-time delayed release adjustment range | 1920–32000 A |
| Instantaneous release adjustment range | 4800–48000 A |
| Earth-fault protection | Integrated |
| Neutral pole current | 100% |
| Auxiliary contacts | 4 changeover contacts |
| Power loss | 425 W |
| Product net width | 510 mm |
| Product net height | 371 mm |
| Product net depth | 270 mm |
| Product net weight | 60 kg |
| Degree of protection | IP30 |
| EAN | 8015644756277 |
| Standard | IEC 60947-2 |
Frequently Asked Questions
What is the ABB 1SDA071777R1 used for?
The ABB 1SDA071777R1 is an Emax 2 air circuit breaker designed for generator, transformer and high-current low-voltage power distribution protection.
What is the rated current of this circuit breaker?
The E4.2N circuit breaker has a rated uninterrupted current of 3200 A.
What protection functions does the Ekip G Touch LSIG trip unit provide?
The Ekip G Touch LSIG provides long-time overload, short-time selective, instantaneous short-circuit and earth-fault protection, together with generator-specific protection and measurement functionality.
What is the breaking capacity of the ABB 1SDA071777R1?
The E4.2N breaker has an ultimate short-circuit breaking capacity of 66 kA across major operating voltages from 380 V to 690 V AC.
How is the ABB E4.2N 3200 1SDA071777R1 installed?
This version is a fixed four-pole air circuit breaker equipped with rear horizontal terminals for integration into generator and low-voltage distribution switchboards.
Trusted for Generator and Critical Power Protection
ABB SACE Emax 2 air circuit breakers combine high-current switching capability, generator-oriented electronic protection and advanced power management functionality for dependable operation in demanding industrial, infrastructure and critical power systems.
