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1SDA057591R1 ABB E3H-A 1600 PR121/P-LI 1600 A 3-Pole Fixed Air Circuit Breaker
ABB 1SDA057591R1 is a SACE Emax E3H-A 1600 A three-pole fixed air circuit breaker with rear horizontal terminals and a PR121/P-LI R1600 electronic trip unit for long-time and instantaneous protection.
£8,555.45
Why Choose the ABB E3H-A 1600 PR121/P-LI Air Circuit Breaker?
The ABB E3H-A 1600 PR121/P-LI, order code 1SDA057591R1, is a high-performance SACE Emax air circuit breaker designed for protection and switching in demanding low-voltage electrical distribution systems. This UL configuration combines the robust E3H-A breaker frame with a PR121/P-LI R1600 electronic overcurrent release for dependable overload and short-circuit protection.
With a rated current of 1600 A, this three-pole fixed circuit breaker is engineered for industrial, commercial and infrastructure power distribution. The E3H-A frame provides a short-circuit breaking capacity of 85 kA at 480 V AC, while its short-time withstand capability supports coordinated protection in high-current installations.
The 1SDA057591R1 is supplied as a fixed three-pole version with rear horizontal terminals. Its PR121/P-LI release provides long-time and instantaneous protection, while four auxiliary contacts and open/closed position indication facilitate integration with switchboard control and status-monitoring systems.
Key Advantages
- High-performance 1600 A SACE Emax air circuit breaker.
- PR121/P-LI R1600 electronic overcurrent release for reliable circuit protection.
- LI functionality provides long-time overload and instantaneous short-circuit protection.
- 85 kA short-circuit breaking capacity at 480 V AC.
- Three-pole fixed configuration for permanent switchboard installation.
- Rear horizontal terminals provide a practical connection arrangement for busbar systems.
Key Features
- ABB SACE Emax E3H-A circuit breaker platform.
- 1600 A rated current.
- Three-pole construction.
- PR121/P-LI R1600 electronic overcurrent release.
- Long-time and instantaneous protection functions.
- 85 kA breaking capacity at 480 V AC.
- 65 kA short-time withstand current.
- Fixed version with rear horizontal terminals.
- Four auxiliary contacts with open/closed position indication.
Reliable Protection for High-Current Distribution
Air circuit breakers such as the ABB SACE Emax E3H-A provide switching, isolation and fault protection for high-current low-voltage distribution circuits. The electronic release continuously monitors current conditions and trips the breaker when configured protection thresholds are exceeded.
The PR121/P-LI release provides long-time protection against sustained overload conditions together with instantaneous protection against severe short circuits. Combined with the E3H-A frame's high breaking capacity, this makes the breaker suitable for installations requiring dependable protection of valuable switchgear, conductors and connected equipment.
Typical Applications
- Industrial low-voltage switchboards.
- Main incoming electrical distribution circuits.
- High-current distribution feeders.
- Manufacturing and process plants.
- Commercial and infrastructure power systems.
- Transformer and generator distribution systems.
Technical Specifications
| Series | SACE Emax / New Emax |
|---|---|
| ABB order code | 1SDA057591R1 |
| Product group | 310513-New Emax |
| Product type | Air circuit breaker |
| Frame | E3H-A |
| Rated current | 1600 A |
| Number of poles | 3 |
| Trip unit | PR121/P-LI R1600 |
| Protection functions | Long-time and instantaneous (LI) |
| Version | Fixed |
| Terminal arrangement | Rear horizontal (HR) |
| Short-circuit breaking capacity at 480 V AC | 85 kA |
| Short-time withstand current | 65 kA |
| Auxiliary contacts | 4 |
| Position indication | Open / closed |
| Standard | UL 1066 |
| EAN | 8015644598549 |
Frequently Asked Questions
What is the ABB 1SDA057591R1?
The ABB 1SDA057591R1 is a SACE Emax E3H-A three-pole fixed air circuit breaker rated at 1600 A and fitted with a PR121/P-LI R1600 electronic overcurrent release.
What protection does the PR121/P-LI release provide?
The PR121/P-LI provides long-time overload and instantaneous short-circuit protection, identified as LI protection.
What is the breaking capacity of the E3H-A 1600?
The E3H-A frame has a short-circuit breaking capacity of 85 kA at 480 V AC.
Is the ABB 1SDA057591R1 fixed or withdrawable?
This specific configuration is a fixed three-pole circuit breaker with rear horizontal terminals.
Where is the ABB E3H-A 1600 typically used?
It is typically installed in high-current low-voltage switchboards, industrial distribution systems, main incoming circuits and other applications requiring reliable overload and short-circuit protection.
Trusted Protection from ABB
ABB SACE Emax air circuit breakers provide dependable switching and electronic circuit protection for demanding industrial, commercial and infrastructure low-voltage power distribution systems.
