1SDA056888R1 ABB E4V3200 PR121/P-LI 3200A 4-Pole Fixed Air Circuit Breaker

Why Choose the ABB E4V3200 PR121/P-LI 3200A Air Circuit Breaker?

The ABB 1SDA056888R1, extended product type E4V3200PR121/P-LIIn=3200A4pFHR, is a high-performance SACE Emax air circuit breaker (ACB) designed for protection and switching in demanding low-voltage electrical distribution systems. Part of the ABB SACE Emax E4 series, this V-performance circuit breaker combines a 3200 A current rating with the PR121/P-LI electronic overcurrent release.

The E4V3200 is engineered for high-current industrial and commercial power distribution applications where dependable protection against overloads and short circuits is essential. Its PR121/P-LI electronic trip unit provides long-time and instantaneous protection functions, helping protect cables, switchgear and connected electrical equipment against damaging overcurrent conditions.

With a rated uninterrupted current of 3200 A, rated operational voltage of 690 V AC and an ultimate short-circuit breaking capacity of 150 kA at 400 V AC, the E4V3200 provides substantial fault-clearing performance. This model features a four-pole fixed configuration with rear horizontal terminals and is fitted with four auxiliary contacts plus circuit-breaker open/closed position indication.

Key Advantages

• High-performance ABB SACE Emax air circuit breaker for demanding low-voltage distribution systems.
• 3200 A rated uninterrupted current for high-current industrial and commercial installations.
• PR121/P-LI electronic overcurrent release with long-time and instantaneous protection.
• 150 kA ultimate short-circuit breaking capacity at 400 V AC.
• Four-pole fixed configuration with rear horizontal terminals.
• Rated operational voltage of 690 V AC.
• Four auxiliary contacts and open/closed circuit-breaker position indication.

Key Features

• ABB SACE Emax E4V series.
• 3200 A rated current.
• Four-pole configuration.
• Fixed version.
• Rear horizontal terminals.
• PR121/P-LI R3200 electronic trip unit.
• Long-time and instantaneous overcurrent protection functions.
• 690 V AC rated operational voltage.
• 150 kA Icu at 400 V AC.
• 100 kA Icu at 690 V AC.
• Four auxiliary contacts fitted.
• Open/closed circuit-breaker position indication.

Reliable Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E4V3200 protect low-voltage distribution networks by interrupting potentially damaging currents when overload or short-circuit conditions occur. The V-performance E4 platform combines a high continuous current rating with substantial short-circuit breaking capability, making it suitable for main switchboards, industrial distribution systems and other installations carrying significant electrical loads.

The PR121/P-LI electronic release provides complementary long-time and instantaneous protection functions. Long-time protection responds to sustained overload conditions, while instantaneous protection enables rapid interruption of severe short-circuit faults. Combined with its fixed four-pole construction and rear horizontal terminals, the E4V3200 is designed for integration into high-capacity low-voltage switchgear and power distribution assemblies.

Typical Applications

• Main low-voltage electrical distribution switchboards.
• Industrial power distribution systems.
• High-current switchgear assemblies.
• Transformer secondary protection and distribution.
• Manufacturing and process plants.
• Commercial and infrastructure electrical distribution.
• High-fault-level installations requiring substantial breaking capacity.