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1SDA059349R1 ABB E3H1000 PR121/P-LSI 1000A 3-Pole Fixed Air Circuit Breaker
ABB 1SDA059349R1 E3H1000 is a 1000 A three-pole fixed SACE Emax air circuit breaker with rear horizontal terminals and a PR121/P-LSI R1000 electronic trip unit providing overload and short-circuit protection.
£9,230.00
Why Choose the ABB E3H1000 PR121/P-LSI 1000A 3-Pole Fixed Air Circuit Breaker?
The ABB E3H1000 PR121/P-LSI, order code 1SDA059349R1, is a high-performance 1000 A three-pole fixed air circuit breaker designed for switching and protecting demanding low-voltage power distribution systems. As part of the proven ABB SACE Emax E3H series, it combines robust high-current switching capability with electronic overcurrent protection for industrial, commercial and infrastructure switchgear.
This Emax circuit breaker is equipped with the PR121/P-LSI R1000 electronic trip unit, providing long-time overload (L), short-time short-circuit (S) and instantaneous short-circuit (I) protection. The adjustable protection functions help safeguard cables, busbars, transformers, switchgear and connected equipment while supporting coordinated protection throughout the electrical distribution system.
With a rated uninterrupted current of 1000 A, rated operational voltage of 690 V AC and an ultimate short-circuit breaking capacity of 100 kA at 400/415 V AC, the E3H1000 is engineered for installations with demanding prospective fault currents. This model features a three-pole fixed construction with rear horizontal terminals and includes four auxiliary change-over contacts with circuit-breaker open/closed position indication.
Key Advantages
- Heavy-duty 1000 A air circuit breaker for demanding low-voltage distribution systems.
- Three-pole configuration for three-phase electrical circuits.
- PR121/P-LSI R1000 electronic trip unit provides comprehensive LSI protection.
- 100 kA ultimate short-circuit breaking capacity at 400/415 V AC.
- 85 kA service short-circuit breaking capacity at 400/415 V AC.
- 75 kA short-time withstand current for 1 s.
- Fixed construction with rear horizontal terminals for permanent switchboard installation.
- Adjustable overload and short-circuit protection supports coordinated power distribution.
- Part of the established ABB SACE Emax air circuit breaker platform.
Key Features
- ABB SACE Emax E3H air circuit breaker.
- 1000 A rated current.
- Three-pole construction.
- PR121/P-LSI R1000 electronic overcurrent release.
- Long-time overload protection (L).
- Short-time short-circuit protection (S).
- Instantaneous short-circuit protection (I).
- Fixed version with rear horizontal terminals (F HR).
- 690 V AC rated operational voltage.
- 1000 V rated insulation voltage.
- 12 kV rated impulse withstand voltage.
- Four auxiliary change-over contacts.
- Circuit-breaker open/closed position indication.
- Optional motor drive capability.
Reliable Circuit Protection for Power Distribution
Air circuit breakers such as the ABB SACE Emax E3H are designed to switch and protect high-current low-voltage distribution circuits. The PR121/P electronic trip unit continuously monitors circuit current and initiates breaker operation when configured protection thresholds are exceeded, helping safeguard cables, busbars, transformers, switchgear and connected equipment against damaging overload and short-circuit conditions.
The PR121/P-LSI release combines long-time, short-time and instantaneous protection, while the E3H performance level provides substantial short-circuit interruption capability. Combined with its fixed three-pole construction and rear horizontal terminals, the E3H1000 is particularly well suited to main and feeder protection where high fault-current capability and coordinated electronic protection are required.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial power distribution systems.
- Commercial building electrical distribution.
- Manufacturing and process plant switchgear.
- Transformer and feeder protection.
- High-fault-level distribution systems.
- Power distribution panels and switchgear assemblies.
- Infrastructure and utility installations.
- Protection of busbars and high-current distribution circuits.
Technical Specifications
| Series | SACE Emax |
|---|---|
| ABB order code | 1SDA059349R1 |
| EAN | 8015644617103 |
| Product group | 310513-New Emax |
| Customs tariff number | 85362090 |
| Product type | Air circuit breaker |
| Frame / subtype | E3 |
| Short-circuit performance level | H |
| Rated current (In) | 1000 A |
| Rated uninterrupted current (Iu) | 1000 A |
| Rated operational current (Ie) | 1000 A |
| Number of poles | 3 |
| Current type | AC |
| Rated operational voltage | 690 V AC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Trip unit | PR121/P-LSI R1000 |
| Release type | Electronic |
| Protection functions | L (overload), S (short-time short-circuit) and I (instantaneous short-circuit) |
| Overload release adjustment range | 400–1000 A |
| Short-time short-circuit release adjustment range | 1000–10000 A |
| Instantaneous short-circuit release adjustment range | 1500–15000 A |
| Rated ultimate short-circuit breaking capacity (Icu) | 100 kA at 220–500 V AC; 85 kA at 660–690 V AC |
| Rated service short-circuit breaking capacity (Ics) | 85 kA at 220–690 V AC |
| Rated short-time withstand current (Icw) | 75 kA for 1 s; 65 kA for 3 s |
| Version | Fixed |
| Terminal arrangement | Rear horizontal terminals |
| Auxiliary contacts | 4 change-over contacts |
| Position indication | Circuit breaker open / closed |
| Motor drive | Optional |
| Integrated motor drive | No |
| Power loss | 38.4 W |
| Mechanical durability | 20,000 operating cycles |
| Mechanical operating frequency | 60 cycles per hour |
| Electrical durability | 12,000 operating cycles at ≤690 V |
| Electrical operating frequency | 20 cycles per hour |
| Dimensions (W × H × D) | 404 × 418 × 302 mm |
| Net weight | 60 kg |
| Standard | IEC |
Frequently Asked Questions
What is the ABB 1SDA059349R1 used for?
The ABB 1SDA059349R1 is a 1000 A three-pole SACE Emax air circuit breaker designed for switching and protecting demanding high-current low-voltage electrical distribution circuits.
What trip unit is fitted to the ABB E3H1000 1SDA059349R1?
This circuit breaker is equipped with the ABB PR121/P-LSI R1000 electronic trip unit, providing long-time overload, short-time short-circuit and instantaneous short-circuit protection.
What is the short-circuit breaking capacity of the ABB E3H1000?
The E3H1000 has a rated ultimate short-circuit breaking capacity of 100 kA at 400/415 V AC and a rated service short-circuit breaking capacity of 85 kA.
Is the ABB 1SDA059349R1 fixed or withdrawable?
The 1SDA059349R1 is a fixed three-pole air circuit breaker fitted with rear horizontal terminals for permanent installation in compatible low-voltage switchgear.
What does LSI protection mean on the ABB E3H1000?
LSI denotes long-time overload (L), short-time short-circuit (S) and instantaneous short-circuit (I) protection, providing coordinated electronic protection against overloads and short-circuit faults.
Trusted ABB Power Distribution Technology
ABB SACE Emax air circuit breakers are engineered for dependable low-voltage power distribution, combining robust switching performance, electronic circuit protection and high short-circuit capability for demanding industrial and commercial switchgear.
