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1SDA059385R1 ABB E3S 1000 PR121/P-LI 1000A 3P Fixed Air Circuit Breaker
ABB 1SDA059385R1 SACE Emax E3S 1000 three-pole fixed air circuit breaker rated at 1000 A with rear horizontal terminals, a PR121/P-LI R1000 electronic release and 75 kA breaking capacity.
£7,762.41
Why Choose the ABB E3S 1000 PR121/P-LI 1000A 3P Fixed Air Circuit Breaker?
The ABB 1SDA059385R1 is a high-performance SACE Emax E3S air circuit breaker designed for switching and protection in demanding low-voltage power distribution systems. This configuration combines a 1000 A rated current, three-pole construction and fixed installation with the PR121/P-LI R1000 electronic overcurrent release.
The PR121/P-LI release provides long-time overload and instantaneous short-circuit protection, helping protect cables, busbars, switchgear and connected equipment against damaging overcurrent conditions. The E3S performance level provides a rated ultimate and service short-circuit breaking capacity of 75 kA across its rated AC voltage range up to 690 V AC.
This model is the three-pole fixed version with rear flat horizontal terminals (F HR). It is supplied with four auxiliary changeover contacts and circuit-breaker open/closed position indication, providing useful signalling capabilities for integration into industrial and commercial switchboard control systems.
Key Advantages
- High-performance 1000 A SACE Emax air circuit breaker for demanding low-voltage distribution.
- PR121/P-LI R1000 electronic release provides long-time overload and instantaneous short-circuit protection.
- 75 kA Icu and Ics across the rated AC voltage range up to 690 V.
- Three-pole construction for three-phase AC distribution systems.
- Fixed construction provides a robust solution for permanent switchboard installation.
- Rear flat horizontal terminals support practical switchboard and busbar integration.
- Four auxiliary changeover contacts provide flexible status signalling.
Key Features
- ABB SACE Emax E3S frame.
- 1000 A rated current.
- Three-pole construction.
- Fixed (F) circuit-breaker configuration.
- Rear flat horizontal (HR) terminals.
- PR121/P-LI R1000 electronic overcurrent release.
- Long-time overload protection.
- Instantaneous short-circuit protection.
- 690 V AC rated operational voltage.
- 75 kA rated ultimate short-circuit breaking capacity.
- 75 kA rated service short-circuit breaking capacity.
- 75 kA short-time withstand current for 1 s.
- Four auxiliary changeover contacts.
- Open/closed circuit-breaker position indication.
Reliable LI Protection for High-Current Power Distribution
Air circuit breakers such as the ABB SACE Emax E3S provide switching and protection at the heart of low-voltage power distribution systems. The electronic overcurrent release monitors circuit current and initiates tripping when configured protection thresholds are exceeded, helping safeguard conductors, switchgear and connected equipment from damaging overload and short-circuit conditions.
The PR121/P-LI release fitted to this E3S 1000 combines long-time overload protection with instantaneous short-circuit protection. Together with the E3S frame's 75 kA breaking capacity, fixed construction and rear horizontal terminals, this configuration provides a dependable solution for main and feeder protection in industrial, commercial and infrastructure switchboards.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial power distribution systems.
- Main incoming circuit protection.
- High-current feeder protection.
- Manufacturing and process plant switchgear.
- Commercial and infrastructure electrical distribution.
- Transformer secondary distribution systems.
- Generator and plant power distribution assemblies.
Technical Specifications
| Series | SACE Emax |
|---|---|
| ABB order code | 1SDA059385R1 |
| Product group | 310513-New Emax |
| Product type | Air circuit breaker |
| Frame / sub-type | E3 |
| Short-circuit performance level | S |
| Rated current (In) | 1000 A |
| Rated operational current (Ie) | 1000 A |
| Rated uninterrupted current (Iu) | 1000 A |
| Number of poles | 3 |
| Version | Fixed (F) |
| Terminal arrangement | Rear flat horizontal (HR) |
| Trip unit | PR121/P-LI R1000 |
| Release type | Electronic (EL) |
| Protection functions | Long-time and instantaneous |
| Overload release adjustment range | 400–1000 A |
| Instantaneous short-circuit release adjustment range | 1500–15000 A |
| Rated operational voltage | 690 V AC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Rated ultimate short-circuit breaking capacity (Icu) at 400 V AC | 75 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 690 V AC | 75 kA |
| Rated service short-circuit breaking capacity (Ics) at 400 V AC | 75 kA |
| Rated service short-circuit breaking capacity (Ics) at 690 V AC | 75 kA |
| Rated short-time withstand current (Icw), 1 s | 75 kA |
| Rated short-time withstand current (Icw), 3 s | 65 kA |
| Auxiliary contacts | 4 changeover contacts |
| Position indication | Open / closed |
| Motor drive | Optional |
| Power loss | 38.4 W |
| Electrical durability | 12,000 cycles |
| Electrical operating frequency | 20 cycles per hour |
| Mechanical durability | 20,000 cycles |
| Mechanical operating frequency | 60 cycles per hour |
| Dimensions (W × H × D) | 404 × 418 × 302 mm |
| Product net weight | 60 kg |
| EAN | 8015644617462 |
| Customs tariff number | 85362090 |
| Standard | IEC |
Frequently Asked Questions
What is the ABB 1SDA059385R1?
The ABB 1SDA059385R1 is a SACE Emax E3S 1000 three-pole fixed air circuit breaker rated at 1000 A, with rear horizontal terminals and a PR121/P-LI R1000 electronic overcurrent release.
What protection functions does the PR121/P-LI release provide?
The PR121/P-LI electronic release provides long-time overload protection and instantaneous short-circuit protection.
What is the breaking capacity of ABB 1SDA059385R1?
The E3S 1000 has a rated ultimate and service short-circuit breaking capacity of 75 kA, including at 400 V AC and 690 V AC.
Is ABB 1SDA059385R1 fixed or withdrawable?
ABB 1SDA059385R1 is the fixed (F) version of the E3S 1000 and is equipped with rear flat horizontal (HR) terminals.
Where is the ABB E3S 1000 PR121/P-LI typically used?
It is typically used in industrial, commercial and infrastructure low-voltage switchboards for main incomer and feeder protection where a 1000 A three-pole circuit breaker with electronic LI protection and high short-circuit performance is required.
Trusted ABB Protection for Power Distribution
ABB SACE Emax air circuit breakers provide dependable switching and protection for demanding low-voltage power distribution systems, combining electronic overcurrent protection, high short-circuit performance and robust construction for industrial and infrastructure switchboards.
