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1SDA057207R1 ABB E1B-A 800 PR121/P-LI 800A 3-Pole Fixed Air Circuit Breaker
ABB 1SDA057207R1 SACE Emax E1B-A 800 three-pole fixed UL air circuit breaker with an 800 A rated current, PR121/P-LI R800 electronic protection release, 12000 A instantaneous protection setting and rear horizontal terminals.
£6,269.00
Why Choose the ABB E1B-A 800 PR121/P-LI 800A 3-Pole Fixed Air Circuit Breaker?
The ABB 1SDA057207R1 is a SACE Emax E1B-A air circuit breaker designed for switching and protection of low-voltage power distribution systems. Part of the ABB New Emax product range, this circuit breaker combines an 800 A current rating with the PR121/P-LI electronic overcurrent release for dependable protection in industrial, commercial and infrastructure electrical installations.
This three-pole fixed circuit breaker features rear horizontal terminals and the PR121/P-LI R800 electronic trip unit. Its LI protection functions provide long-time overload (L) and instantaneous short-circuit (I) protection, while the instantaneous protection is specified at 12,000 A for this configuration.
The 1SDA057207R1 is a UL version of the E1B-A 800 and includes four auxiliary contacts together with circuit-breaker open / closed position indication. Its compact E1 frame, fixed installation format and 800 A rating make it suitable for distribution boards and switchgear requiring reliable high-current circuit protection without the additional complexity of selective short-circuit or earth-fault protection functions.
Key Advantages
- 800 A rated current for substantial low-voltage distribution loads.
- Three-pole configuration for three-phase electrical systems.
- Electronic PR121/P-LI R800 overcurrent protection release.
- LI protection provides long-time overload and instantaneous short-circuit protection.
- 12,000 A instantaneous protection setting for this specific configuration.
- Fixed installation for permanent integration into compatible switchgear.
- Rear horizontal terminals for main circuit connections.
- Four auxiliary contacts with circuit-breaker open / closed position indication.
- UL configuration for applications requiring the corresponding certification framework.
Key Features
- ABB SACE Emax E1B-A series.
- 800 A rated current.
- 3-pole fixed air circuit breaker.
- PR121/P-LI R800 electronic trip unit.
- Long-time overload (L) protection.
- Instantaneous short-circuit (I) protection.
- 12,000 A instantaneous protection setting.
- Rear horizontal terminal arrangement.
- Four auxiliary contacts.
- Open / closed circuit-breaker position indication.
- Electrical durability of 10,000 cycles.
- Mechanical durability of 20,000 cycles.
- UL version.
Dependable Protection for Low-Voltage Power Distribution
Air circuit breakers such as the ABB SACE Emax E1B-A 800 provide switching and protection for substantial low-voltage distribution circuits. The electronic trip unit monitors current conditions and initiates circuit interruption when configured protection thresholds are exceeded, helping protect busbars, cables, transformers and connected equipment against damaging overload and short-circuit currents.
The PR121/P-LI release combines long-time overload and instantaneous short-circuit protection in a straightforward electronic protection package. Together with the E1B-A's 800 A current rating, fixed construction, rear horizontal terminals and auxiliary status contacts, the 1SDA057207R1 provides a practical solution for switchboards requiring reliable three-phase circuit protection.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial electrical distribution systems.
- Main incoming and feeder circuits.
- Manufacturing and process plants.
- Commercial building power distribution.
- Infrastructure electrical systems.
- Transformer secondary protection and switching.
- Three-phase distribution systems requiring fixed air circuit breakers.
Technical Specifications
| Series | SACE Emax / New Emax |
|---|---|
| Order code | 1SDA057207R1 |
| Product group | 310513-New Emax |
| Product type | Air circuit breaker |
| Frame / variant | E1B-A |
| Rated current (In) | 800 A |
| Number of poles | 3 |
| Trip unit | PR121/P-LI R800 |
| Trip unit type | Electronic overcurrent release |
| Protection functions | Long-time overload and instantaneous short-circuit protection (LI) |
| Instantaneous protection setting (Im) | 12,000 A |
| Installation | Fixed circuit breaker |
| Terminal arrangement | Rear horizontal |
| Auxiliary contacts | 4 |
| Position indication | Circuit breaker open / closed |
| Current type | AC |
| Power loss per pole at rated operating conditions | 65 W |
| Electrical durability at Ue ≤ 508 V | 10,000 cycles |
| Electrical durability at Ue 508–635 V | 10,000 cycles |
| Electrical operating frequency | 30 cycles per hour |
| Mechanical durability | 20,000 cycles |
| Mechanical operating frequency | 30 cycles per hour |
| Dimensions (W × H × D) | 296 × 418 × 302 mm |
| Net weight | 40 kg |
| EAN | 8015644594701 |
| Customs tariff number | 85362090 |
| Version | UL |
Frequently Asked Questions
What is the ABB 1SDA057207R1 used for?
The ABB 1SDA057207R1 is an 800 A three-pole fixed air circuit breaker designed for switching and protection of low-voltage three-phase electrical distribution systems.
What is the current rating of the ABB E1B-A 800?
The E1B-A 800 in this configuration has a rated current of 800 A, making it suitable for substantial industrial and commercial power distribution circuits.
What protection unit is fitted to the ABB 1SDA057207R1?
The circuit breaker is fitted with an electronic ABB PR121/P-LI R800 overcurrent release providing long-time overload and instantaneous short-circuit protection.
What is the instantaneous protection setting of the ABB 1SDA057207R1?
The 1SDA057207R1 is specified with an instantaneous protection setting of 12,000 A, identified as Im12000 in the ABB product configuration.
Is the ABB 1SDA057207R1 fixed or withdrawable?
The 1SDA057207R1 is a three-pole fixed air circuit breaker with rear horizontal terminals, four auxiliary contacts and circuit-breaker open / closed position indication.
Trusted Protection for Critical Power Systems
ABB SACE Emax air circuit breakers are engineered for dependable switching and protection in low-voltage power distribution systems, combining electronic overcurrent protection, robust construction and practical installation options for industrial, commercial and infrastructure applications.
