Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
1SDA057121R1 ABB E6V 5000 PR121/P-LSI 5000A 3P Withdrawable Air Circuit Breaker Moving Part
ABB 1SDA057121R1 E6V 5000 three-pole withdrawable SACE Emax air circuit breaker moving part rated at 5000 A with a PR121/P-LSI R5000 electronic overcurrent release providing LSI protection.
£56,787.71
Why Choose the ABB E6V 5000 PR121/P-LSI 5000A 3P Withdrawable Air Circuit Breaker?
The ABB E6V 5000 PR121/P-LSI, order code 1SDA057121R1, is a high-capacity three-pole withdrawable air circuit breaker moving part designed for protection and switching in demanding low-voltage power distribution systems. Part of the ABB SACE Emax E6 series, it combines a rated uninterrupted current of 5000 A with the PR121/P-LSI R5000 electronic overcurrent release.
The E6V performance level is engineered for installations with very high prospective short-circuit currents. Its PR121/P-LSI electronic release provides long-time, short-time and instantaneous overcurrent protection, helping safeguard switchboards, conductors and connected equipment against overloads and short circuits while supporting selective protection coordination.
This configuration is the moving part of a three-pole withdrawable circuit breaker for use with the corresponding compatible SACE Emax fixed part. It operates at up to 690 V AC and provides an ultimate short-circuit breaking capacity of up to 150 kA, while four auxiliary change-over contacts and open/closed position indication support circuit-breaker status monitoring.
Key Advantages
- Very high 5000 A rated uninterrupted current for major low-voltage distribution systems.
- Three-pole withdrawable configuration for maintainable high-current three-phase installations.
- PR121/P-LSI R5000 electronic overcurrent release.
- Provides long-time, short-time and instantaneous protection.
- Ultimate short-circuit breaking capacity of up to 150 kA.
- Withdrawable construction supports efficient isolation, inspection, servicing and replacement.
- Four auxiliary change-over contacts provide circuit-breaker status signalling.
Key Features
- ABB SACE Emax E6V air circuit breaker moving part.
- 5000 A rated uninterrupted current.
- 3-pole configuration.
- PR121/P-LSI R5000 electronic overcurrent release.
- Withdrawable moving-part construction.
- Rated operational voltage up to 690 V AC.
- Rated insulation voltage of 1000 V.
- Rated impulse withstand voltage of 12 kV.
- Long-time overload, short-time and instantaneous short-circuit protection.
- Short-time withstand current of 100 kA for 1 s.
- Four auxiliary change-over contacts.
- Open/closed circuit-breaker position indication.
High-Performance Protection for Critical Power Distribution
Air circuit breakers such as the ABB E6V 5000 provide primary switching and protection for major low-voltage electrical systems. With its 5000 A continuous current capability, operation up to 690 V AC and ultimate breaking capacity reaching 150 kA, this SACE Emax moving part is suited to distribution networks where both high current capacity and dependable interruption of severe faults are essential.
The PR121/P-LSI electronic release provides long-time protection against sustained overloads, short-time protection for coordinated fault clearing and instantaneous protection against severe short circuits. Combined with the withdrawable Emax architecture, these functions support effective selectivity and protection coordination while allowing the circuit-breaker moving part to be isolated and removed for inspection, servicing or replacement.
Typical Applications
- Main incoming protection in high-capacity low-voltage switchboards.
- Industrial power distribution and heavy process plants.
- Transformer secondary and distribution protection.
- Generator and utility distribution systems.
- Large data centres and critical infrastructure power systems.
- Heavy manufacturing and large commercial facilities.
- High-current feeder and power distribution centre protection.
Technical Specifications
| Product family | SACE Emax |
|---|---|
| Series / frame | E6V 5000 |
| ABB order code | 1SDA057121R1 |
| EAN | 8015644584610 |
| Product type | Air circuit breaker moving part |
| Rated current (In) | 5000 A |
| Rated uninterrupted current (Iu) | 5000 A |
| Rated operational current (Ie) | 5000 A |
| Number of poles | 3 |
| Version | Withdrawable moving part |
| Trip unit | PR121/P-LSI electronic overcurrent release |
| Rating plug | R5000 |
| Protection functions | Long-time, short-time and instantaneous (LSI) |
| 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), 220–415 V AC | 150 kA |
| Rated ultimate short-circuit breaking capacity (Icu), 440 V AC | 150 kA |
| Rated ultimate short-circuit breaking capacity (Icu), 500 V AC | 130 kA |
| Rated ultimate short-circuit breaking capacity (Icu), 660–690 V AC | 100 kA |
| Rated service short-circuit breaking capacity (Ics), 220–415 V AC | 150 kA |
| Rated service short-circuit breaking capacity (Ics), 440 V AC | 125 kA |
| Rated service short-circuit breaking capacity (Ics), 500–690 V AC | 100 kA |
| Rated short-time withstand current (Icw), 1 s | 100 kA |
| Rated short-time withstand current (Icw), 3 s | 85 kA |
| Overload release setting range | 2000–5000 A |
| Short-time delayed short-circuit release adjustment range | 5000–50000 A |
| Instantaneous short-circuit release adjustment range | 7500–75000 A |
| Current type | AC |
| Release type | Electronic |
| Short-circuit performance level | V |
| Standard | IEC |
| Power loss | 700 W |
| Mechanical durability | 12,000 operating cycles |
| Mechanical operating frequency | 60 cycles per hour |
| Electrical durability at ≤440 V | 3,000 operating cycles |
| Electrical durability at 500–690 V | 2,000 operating cycles |
| Electrical operating frequency | 10 cycles per hour |
| Auxiliary contacts | 4 change-over contacts |
| Position indication | Circuit breaker open / closed |
| Product net weight | 138 kg |
Frequently Asked Questions
What is the ABB 1SDA057121R1?
The ABB 1SDA057121R1 is the moving part of an E6V 5000 three-pole withdrawable SACE Emax air circuit breaker, rated at 5000 A and equipped with a PR121/P-LSI R5000 electronic overcurrent release.
What protection functions does the PR121/P-LSI release provide?
The PR121/P-LSI provides long-time overload, short-time delayed short-circuit and instantaneous short-circuit protection functions.
What is the short-circuit breaking capacity of the ABB E6V 5000?
The E6V 5000 provides an ultimate short-circuit breaking capacity of up to 150 kA, with the exact value depending on operating voltage. Its Icu is 150 kA at 220–440 V AC, 130 kA at 500 V AC and 100 kA at 660–690 V AC.
Is the ABB 1SDA057121R1 fixed or withdrawable?
This product is the moving part of a withdrawable air circuit breaker and is intended for use with the corresponding compatible fixed part in an ABB SACE Emax switchgear assembly.
Where is the E6V 5000 PR121/P-LSI typically used?
It is designed for high-current low-voltage distribution applications including industrial switchboards, transformer secondary systems, power distribution centres, heavy manufacturing facilities, data centres and critical infrastructure installations.
Trusted Protection for Critical Power Systems
ABB SACE Emax air circuit breakers provide high-performance switching and protection for demanding low-voltage distribution systems, combining very high current capacity, electronic LSI protection and withdrawable construction for maintainable critical power applications.
