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1SDA061209R1 ABB E4L-A 3600 PR121/P-LSI 3600 A 3-Pole Air Circuit Breaker
ABB 1SDA061209R1 E4L-A 3600 is a 3600 A three-pole withdrawable SACE Emax air circuit breaker with a PR121/P-LSI electronic trip unit for high-current low-voltage power distribution protection.
£33,918.41
Why Choose the ABB E4L-A 3600 PR121/P-LSI Air Circuit Breaker?
The ABB E4L-A 3600 PR121/P-LSI, order code 1SDA061209R1, is a high-performance three-pole air circuit breaker (ACB) designed for protection and switching of high-current low-voltage electrical distribution systems. As part of the proven ABB SACE Emax E4 series, this breaker combines a 3600 A rated current with the electronic PR121/P trip unit for dependable protection in demanding industrial and commercial installations.
This E4L-A configuration uses the PR121/P-LSI electronic protection release, providing long-time overload (L), selective short-circuit (S) and instantaneous short-circuit (I) protection. These functions allow the circuit breaker to protect conductors and downstream equipment while supporting selective coordination within complex low-voltage distribution networks.
The 1SDA061209R1 is a withdrawable three-pole moving-part version, allowing the breaker to be disconnected and removed from its fixed cradle for inspection and maintenance. The E4L-A 3600 platform is engineered for demanding high-fault-level systems, with a short-circuit breaking capacity of 150 kA at 480 V and a short-time withstand current of 100 kA.
Key Advantages
- Heavy-duty ABB SACE Emax air circuit breaker for low-voltage power distribution.
- 3600 A rated current for high-current electrical installations.
- Three-pole configuration for three-phase distribution systems.
- PR121/P electronic trip unit with LSI protection functions.
- High 150 kA short-circuit breaking capacity at 480 V.
- 100 kA short-time withstand capability for demanding distribution networks.
- Withdrawable moving-part construction simplifies maintenance and breaker replacement.
- Designed for selective protection and reliable operation in industrial power systems.
Key Features
- ABB SACE Emax E4L-A series.
- 3600 A rated current.
- Three-pole air circuit breaker.
- PR121/P electronic protection release.
- LSI protection: long-time, short-time and instantaneous.
- Withdrawable (W) moving-part (MP) execution.
- Designed for high-current low-voltage distribution and protection.
- Suitable for switchboards, switchgear and industrial power distribution assemblies.
Reliable Protection for High-Current Distribution Systems
Air circuit breakers such as the ABB E4L-A protect low-voltage electrical networks against overloads and short circuits while also providing a reliable means of switching and isolating high-current circuits. The electronic PR121/P release continuously evaluates electrical conditions and commands the breaker to trip when its configured protection thresholds are exceeded.
The LSI protection configuration supports coordinated power distribution by combining long-time overload protection with delayed selective short-circuit protection and instantaneous fault interruption. The withdrawable Emax construction is particularly valuable in critical switchgear because the breaker moving part can be isolated and removed for servicing while the fixed installation remains in place.
Typical Applications
- Main incoming circuit protection in low-voltage switchboards.
- Industrial power distribution systems.
- High-current feeder protection.
- Commercial and infrastructure electrical distribution.
- Manufacturing and process plant switchgear.
- Power distribution centres and electrical substations.
- Generator and transformer distribution systems.
- Applications requiring selective LSI circuit protection.
Technical Specifications
| Series | SACE Emax E4 |
|---|---|
| ABB order code | 1SDA061209R1 |
| Product group | 310513-New Emax |
| Product type | Air circuit breaker |
| Rated current | 3600 A |
| Number of poles | 3 |
| Trip unit | PR121/P |
| Protection functions | LSI |
| Long-time protection (L) | Overload protection |
| Short-time protection (S) | Selective short-circuit protection |
| Instantaneous protection (I) | Instantaneous short-circuit protection |
| Execution | Withdrawable (W) |
| Breaker component | Moving part (MP) |
| Short-circuit breaking capacity at 480 V | 150 kA |
| Short-time withstand current | 100 kA |
Frequently Asked Questions
What is the ABB 1SDA061209R1 used for?
The ABB 1SDA061209R1 is a high-current air circuit breaker used for switching and protecting low-voltage electrical distribution systems against overloads and short circuits.
What is the rated current of the ABB E4L-A 3600?
This E4L-A circuit breaker has a rated current of 3600 A and is configured as a three-pole breaker for three-phase power distribution.
What protection does the PR121/P-LSI trip unit provide?
The PR121/P-LSI release provides long-time overload (L), selective short-time short-circuit (S) and instantaneous short-circuit (I) protection.
Is the ABB 1SDA061209R1 fixed or withdrawable?
The 1SDA061209R1 is a withdrawable moving-part (W MP) version of the E4L-A circuit breaker, designed for use with the corresponding fixed part or cradle.
What is the short-circuit capability of the E4L-A 3600?
The E4L-A 3600 platform provides a short-circuit breaking capacity of 150 kA at 480 V and a short-time withstand current of 100 kA, making it suitable for demanding high-fault-level distribution systems.
Trusted for Critical Power Distribution
ABB SACE Emax air circuit breakers are engineered for reliable protection, switching and isolation in demanding low-voltage power distribution systems, combining high breaking performance with electronic protection and serviceable withdrawable construction.
