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1SDA071471R1 ABB E1.2N 1250 Ekip Dip LI 4p F F Air Circuit Breaker
ABB 1SDA071471R1 SACE Emax 2 E1.2N 1250 four-pole fixed air circuit breaker with front terminals, Ekip Dip LI electronic protection, 1250 A rated current and 66 kA ultimate breaking capacity at 400–440 V AC.
£5,567.48
Why Choose the ABB E1.2N 1250 Ekip Dip LI 4p F F Air Circuit Breaker?
The ABB E1.2N 1250 Ekip Dip LI 4p F F, order code 1SDA071471R1, is a SACE Emax 2 air circuit breaker (ACB) designed for protection, switching and isolation in demanding low-voltage power distribution systems. This fixed four-pole E1.2N breaker combines a 1250 A rated uninterrupted current with ABB's Ekip Dip LI electronic trip unit.
The Ekip Dip LI release provides long-time overload (L) and instantaneous short-circuit (I) protection. Its straightforward electronic protection architecture is well suited to applications requiring dependable overload and high-current fault protection without the additional short-time or ground-fault functions provided by LSI and LSIG releases.
The E1.2N performance level provides an ultimate short-circuit breaking capacity of 66 kA at 400–440 V AC and 50 kA at 500–690 V AC. With a 50 kA short-time withstand current for 1 s, fixed four-pole construction and front terminals, this breaker is suited to industrial switchboards, transformer protection and high-current incoming or distribution feeders.
Key Advantages
- High-performance 1250 A SACE Emax 2 air circuit breaker for low-voltage distribution.
- Ekip Dip LI electronic release provides long-time overload and instantaneous short-circuit protection.
- 66 kA ultimate short-circuit breaking capacity at 400–440 V AC.
- 50 kA ultimate short-circuit breaking capacity at 500–690 V AC.
- 50 kA short-time withstand current for 1 s provides robust short-circuit performance.
- Rated service short-circuit breaking capacity of 50 kA across 400–690 V AC.
- Four-pole configuration with a neutral pole rated at 100% of Iu.
- Fixed construction with front terminals provides practical integration into low-voltage switchboards.
Key Features
- ABB SACE Emax 2 E1.2N series.
- 1250 A rated uninterrupted current (Iu).
- 4-pole configuration.
- 100% neutral-pole current rating.
- Fixed circuit breaker construction.
- Front terminals.
- Ekip Dip LI electronic trip unit.
- Long-time (L) overload protection.
- Instantaneous (I) short-circuit protection.
- No integrated ground-fault protection in this LI configuration.
- 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 Icw for 3 s.
- Four change-over auxiliary contacts.
- Suitable for IT networks up to 690 V AC.
Reliable High-Current Distribution Protection
The ABB SACE Emax 2 E1.2N combines switching, isolation and electronic protection in a compact air circuit breaker platform. Its 1250 A rated current, four-pole construction, 66 kA ultimate breaking capacity at 400–440 V AC and 50 kA short-time withstand capability for 1 s make it suitable for important incoming and distribution positions in demanding low-voltage switchboards.
The Ekip Dip LI release provides long-time overload protection together with instantaneous short-circuit protection, helping protect conductors, busbars, transformers and connected electrical equipment against sustained overcurrent and severe short-circuit conditions. The E1.2N platform also supports optional motor operation where electrically controlled breaker operation is required.
Typical Applications
- Low-voltage electrical distribution switchboards.
- Industrial power distribution systems.
- Main and sub-main incoming feeders.
- Transformer and installation protection.
- Four-pole distribution circuits requiring neutral switching.
- Commercial and infrastructure electrical systems.
- Manufacturing and process facilities.
- IT-network applications up to 690 V AC.
Technical Specifications
| Series | SACE Emax 2 |
|---|---|
| Frame | E1.2N |
| ABB order code | 1SDA071471R1 |
| Product type | Air circuit breaker |
| Rated uninterrupted current (Iu) | 1250 A |
| Rated current (In) | 1250 A |
| Rated operational voltage | 690 V AC |
| Rated insulation voltage (Ui) | 1000 V AC |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Number of poles | 4 |
| Neutral-pole current | 100% of Iu |
| Short-circuit performance level | N |
| Trip unit | Ekip Dip LI |
| Release type | Electronic |
| Protection functions | L and I |
| Instantaneous short-circuit setting | 1875 A minimum |
| Integrated earth-fault protection | No |
| Ultimate short-circuit breaking capacity (Icu) at 400 V AC | 66 kA |
| Ultimate short-circuit breaking capacity (Icu) at 415 V AC | 66 kA |
| Ultimate short-circuit breaking capacity (Icu) at 440 V AC | 66 kA |
| Ultimate short-circuit breaking capacity (Icu) at 500 V AC | 50 kA |
| Ultimate short-circuit breaking capacity (Icu) at 525 V AC | 50 kA |
| Ultimate short-circuit breaking capacity (Icu) at 690 V AC | 50 kA |
| Rated service short-circuit breaking capacity (Ics) at 400–690 V AC | 50 kA |
| Rated service breaking capacity | 100% of Icu |
| Short-time withstand current (Icw), 1 s | 50 kA |
| Short-time withstand current (Icw), 3 s | 30 kA |
| Execution | Fixed |
| Terminal arrangement | Front terminals |
| Main-circuit connection | Bolt connection |
| Recommended main-circuit screw | M10 |
| Main-circuit tightening torque | 45 N·m |
| Auxiliary contacts | 4 change-over contacts |
| Switched-off indication | Yes |
| Motor drive integrated | No |
| Motor drive | Optional |
| Degree of protection | IP30 |
| Suitable for IT networks | Yes, up to 690 V AC |
| Electrical durability at Ue ≤ 440 V | 8000 cycles |
| Electrical durability at Ue 500–690 V | 6500 cycles |
| Mechanical durability | 20000 cycles |
| Power loss | 122 W |
| Product dimensions (W × H × D) | 280 × 296 × 183 mm |
| Product net weight | 16 kg |
| Standard | IEC 60947-2 |
| EAN | 8015644753214 |
| Country of origin | Italy |
| ABB product group | Emax2 Air Circuit Breaker |
Frequently Asked Questions
What is the ABB 1SDA071471R1?
The ABB 1SDA071471R1 is a SACE Emax 2 E1.2N 1250 Ekip Dip LI four-pole fixed air circuit breaker with front terminals, a 1250 A rated current and electronic LI protection.
What is the rated current of the ABB E1.2N 1250?
The breaker has a rated uninterrupted current of 1250 A and a rated operational voltage of up to 690 V AC.
What protection does the Ekip Dip LI trip unit provide?
The Ekip Dip LI electronic release provides long-time overload (L) and instantaneous short-circuit (I) protection. This LI version does not incorporate integrated ground-fault protection.
What is the breaking capacity of ABB 1SDA071471R1?
The E1.2N 1250 has an ultimate short-circuit breaking capacity of 66 kA at 400–440 V AC and 50 kA at 500–690 V AC. Its short-time withstand current is 50 kA for 1 s.
Where is the ABB E1.2N 1250 Ekip Dip LI typically used?
It is typically used in industrial and commercial low-voltage switchboards, transformer protection, incoming feeders and four-pole distribution circuits requiring dependable overload and instantaneous short-circuit protection.
Dependable Protection for Low-Voltage Distribution
ABB SACE Emax 2 air circuit breakers combine compact construction, electronic circuit protection and robust short-circuit performance, providing dependable switching and protection for industrial, commercial and infrastructure low-voltage distribution systems.
