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1SDA070849R1 ABB E1.2N 1250 Ekip Hi-Touch LSIG 3p F F Air Circuit Breaker
ABB 1SDA070849R1 is a SACE Emax 2 E1.2N three-pole fixed 1250 A air circuit breaker rated at 690 V AC with front terminals, an Ekip Hi-Touch LSIG electronic trip unit and 66 kA ultimate short-circuit breaking capacity at 400–440 V AC.
£7,854.61
Why Choose the ABB E1.2N 1250 Ekip Hi-Touch LSIG 3p F F Air Circuit Breaker?
The ABB 1SDA070849R1, designated E1.2N 1250 Ekip Hi-Touch LSIG 3p F F, is a SACE Emax 2 air circuit breaker (ACB) designed for advanced protection, switching and supervision of low-voltage AC power distribution systems. Built on the compact ABB SACE Emax 2 E1.2 frame, this fixed three-pole breaker combines a 1250 A rated uninterrupted current with the advanced Ekip Hi-Touch LSIG solid-state electronic trip unit.
The Ekip Hi-Touch LSIG release provides long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection. The Hi-Touch platform combines comprehensive LSIG protection with advanced measurement and network-analysis capabilities, making the breaker suitable for installations requiring detailed electrical supervision as well as configurable protection.
Rated for operation up to 690 V AC, the E1.2N 1250 provides a rated ultimate short-circuit breaking capacity of 66 kA at 400–440 V AC and 50 kA at 500–690 V AC. Its fixed three-pole construction, front terminals and 50 kA short-time withstand capability for 1 s make it well suited to demanding industrial, commercial and infrastructure switchboards.
Key Advantages
- 1250 A rated uninterrupted current for demanding low-voltage power distribution applications.
- Ekip Hi-Touch LSIG electronic trip unit provides overload, short-circuit and earth-fault protection.
- 66 kA ultimate breaking capacity at 400–440 V AC for high-fault-level installations.
- 50 kA short-time withstand current for 1 s supports selective protection strategies.
- Advanced Hi-Touch functionality supports detailed electrical measurement and network supervision.
- Integrated earth-fault protection provides an additional layer of protection for distribution systems.
- Three-pole fixed configuration with front terminals provides straightforward permanent switchboard integration.
Key Features
- ABB SACE Emax 2 E1.2 series.
- E1.2N short-circuit performance level.
- 1250 A rated uninterrupted current.
- 690 V AC rated operational voltage.
- Three-pole configuration.
- Fixed circuit breaker execution.
- Front bolted terminal connections.
- Ekip Hi-Touch LSIG solid-state electronic release.
- LSIG functions provide long-time, short-time, instantaneous and earth-fault protection.
- 66 kA Icu at 400–440 V AC.
- 50 kA Icu at 500–690 V AC.
- 50 kA Icw for 1 s and 30 kA for 3 s.
- Four auxiliary change-over contacts.
- Includes circuit-breaker open/closed position indication.
Advanced Protection and Monitoring with Ekip Hi-Touch LSIG
The Ekip Hi-Touch LSIG trip unit combines four complementary protection functions for comprehensive low-voltage circuit protection. Long-time protection responds to sustained overloads, short-time protection supports selective coordination during short-circuit events, instantaneous protection rapidly interrupts severe fault currents, and the earth-fault function provides dedicated protection against current flowing through unintended earth paths.
Combined with the E1.2N breaker's 66 kA fault-breaking capability at 400–440 V AC and 50 kA short-time withstand current for 1 s, the Hi-Touch platform provides a strong foundation for selective and highly supervised distribution systems. Advanced measurement and analysis capabilities further support electrical-system monitoring, diagnostics and power-management requirements.
Typical Applications
- Industrial low-voltage power distribution systems.
- Main and sub-main electrical switchboards.
- Transformer-fed distribution and protection systems.
- Commercial building power distribution.
- Manufacturing and process facilities.
- Infrastructure and critical-power installations requiring advanced LSIG protection and monitoring.
Technical Specifications
| Series | SACE Emax 2 |
|---|---|
| Frame | E1.2 |
| Performance level | N |
| Order code / Product ID | 1SDA070849R1 |
| Product group | Emax2 Air Circuit Breaker |
| Product type | Air circuit breaker |
| Current type | AC |
| Execution | Fixed |
| Number of poles | 3 |
| Rated uninterrupted current (Iu) | 1250 A |
| Rated operational voltage (Ue) | 690 V AC |
| Rated insulation voltage (Ui) | 1000 V AC |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Trip unit | Ekip Hi-Touch LSIG |
| Release rated current | 1250 A |
| Release type | Solid-state electronic |
| Protection functions | LSIG |
| Long-time protection | L |
| Short-time protection | S |
| Instantaneous protection | I |
| Earth-fault protection | G |
| Integrated earth-fault protection | Yes |
| Rated ultimate short-circuit breaking capacity (Icu) at 400 V AC | 66 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 415 V AC | 66 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 440 V AC | 66 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 500 V AC | 50 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 525 V AC | 50 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 690 V AC | 50 kA |
| Rated short-time withstand current (Icw) | 50 kA for 1 s; 30 kA for 3 s |
| Terminal connection type | Front |
| Terminal type | Bolt |
| Main circuit screw | M10 |
| Tightening torque | 45 N·m |
| Auxiliary contacts | 4 change-over contacts |
| Position indication | Circuit breaker open / closed |
| Motor drive integrated | No |
| Motor drive optional | Yes |
| Degree of protection | IP30 |
| Power loss | 122 W |
| Electrical durability at ≤440 V | 8000 cycles |
| Electrical durability at 500–690 V | 6500 cycles |
| Mechanical durability | 20000 cycles |
| Dimensions (W × H × D) | 210 × 296 × 183 mm |
| Net weight | 14 kg |
| EAN / GTIN | 8015644746995 |
| Customs tariff number | 85362090 |
| Standard | IEC |
Frequently Asked Questions
What is the ABB 1SDA070849R1 used for?
The ABB 1SDA070849R1 is an Emax 2 air circuit breaker designed for switching, protecting and supervising low-voltage AC power distribution systems in industrial, commercial and infrastructure applications.
What is the rated current of the ABB E1.2N 1250?
The 1SDA070849R1 has a rated uninterrupted current of 1250 A.
What protection unit does the ABB 1SDA070849R1 use?
The breaker uses an Ekip Hi-Touch LSIG solid-state electronic trip unit, providing long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection together with advanced monitoring capabilities.
What is the breaking capacity of the ABB 1SDA070849R1?
The E1.2N 1250 has a rated ultimate short-circuit breaking capacity of 66 kA at 400–440 V AC and 50 kA at 500–690 V AC. Its rated short-time withstand current is 50 kA for 1 s.
Is the ABB 1SDA070849R1 fixed or withdrawable?
The 1SDA070849R1 is a three-pole fixed air circuit breaker with front bolted terminal connections.
ABB Emax 2 Advanced Power Distribution Protection
ABB SACE Emax 2 air circuit breakers combine high fault-breaking capability with advanced Ekip electronic protection, measurement and monitoring, including comprehensive LSIG functionality for demanding low-voltage power distribution systems.
