1SDA057104R1 ABB E6V5000 PR121/P-LI 5000A 3-Pole Air Circuit Breaker

Why Choose the ABB E6V5000 PR121/P-LI 5000A 3-Pole Air Circuit Breaker?

The ABB 1SDA057104R1 is a high-performance SACE Emax E6V air circuit breaker (ACB) designed for protection and switching of high-current low-voltage electrical distribution systems. Part of the ABB New Emax series, the E6V5000 combines a 5000 A current rating with the PR121/P-LI electronic overcurrent release for dependable protection in demanding industrial, commercial and infrastructure power distribution applications.

This three-pole fixed circuit breaker is supplied with rear horizontal terminals and the PR121/P-LI R5000 electronic trip unit. Its LI protection functions provide long-time overload (L) and instantaneous short-circuit (I) protection, helping safeguard distribution equipment against sustained overcurrents and severe short-circuit faults.

The E6V designation provides a high short-circuit performance level, with the E6V5000 offering an ultimate short-circuit breaking capacity of 150 kA at 400 V AC. Combined with its 5000 A continuous-current capability, fixed construction and auxiliary status contacts, the 1SDA057104R1 is suited to major power distribution systems where high fault-clearing capability and dependable circuit protection are required.

Key Advantages

• High-capacity 5000 A air circuit breaker for low-voltage power distribution.
• Three-pole configuration for three-phase electrical systems.
• Electronic PR121/P-LI R5000 overcurrent protection release.
• LI protection provides long-time overload and instantaneous short-circuit protection.
• 150 kA ultimate short-circuit breaking capacity at 400 V AC.
• Fixed construction with rear horizontal terminals.
• Four auxiliary contacts for open / closed circuit-breaker status indication.
• Designed for demanding high-current industrial and infrastructure distribution systems.

Key Features

• ABB SACE Emax E6V series.
• 5000 A rated uninterrupted current.
• 3-pole fixed air circuit breaker.
• PR121/P-LI R5000 electronic trip unit.
• Long-time overload (L) protection.
• Instantaneous short-circuit (I) protection.
• 150 kA Icu at 400 V AC, 50 Hz.
• V high short-circuit performance level.
• Rear horizontal flat terminals.
• Four auxiliary contacts for open / closed position indication.
• Overload release adjustment range of 3200–5000 A.
• Instantaneous short-circuit release adjustment range of 7500–75,000 A.

High-Performance Protection for Critical Power Distribution

Air circuit breakers such as the ABB SACE Emax E6V5000 provide switching and protection for high-current low-voltage distribution circuits. The electronic trip unit monitors electrical 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 for straightforward and dependable circuit protection. Together with the E6V5000's 5000 A current capability and 150 kA ultimate short-circuit breaking capacity at 400 V AC, the 1SDA057104R1 is particularly suited to installations with high prospective fault currents where robust interruption performance is essential.

Typical Applications

• Low-voltage main distribution switchboards.
• High-current industrial electrical distribution systems.
• Main incoming and high-capacity feeder circuits.
• Manufacturing and process plants.
• Commercial and infrastructure power distribution.
• Transformer secondary protection and switching.
• Generator and utility distribution systems.
• Electrical installations with high prospective short-circuit currents.