1SDA056880R1 ABB E4V 3200 PR121/P-LI 3200 A 3-Pole Air Circuit Breaker

Why Choose the ABB 1SDA056880R1 E4V 3200 Air Circuit Breaker?

The ABB 1SDA056880R1 is a high-performance SACE Emax E4V 3200 air circuit breaker (ACB) designed for protection and switching in demanding high-current low-voltage electrical distribution systems. Part of the ABB New Emax / SACE Emax range, this three-pole fixed circuit breaker combines a 3200 A rated current with the PR121/P-LI electronic overcurrent release.

The PR121/P-LI electronic trip unit provides long-time overload and instantaneous short-circuit protection, helping safeguard conductors, busbars, switchgear and connected equipment against damaging overcurrent conditions. The E4V represents a very high short-circuit performance level, making this breaker particularly suitable for installations where substantial prospective fault currents are present.

With a rated uninterrupted current of 3200 A, a three-pole fixed configuration and rear flat horizontal terminals, the 1SDA056880R1 is engineered for integration into high-capacity electrical switchboards. Its E4V performance provides an exceptional rated ultimate and service short-circuit breaking capacity of 150 kA at 400 V AC, while retaining 100 kA breaking capacity at 690 V AC.

Key Advantages

• High-capacity 3200 A air circuit breaker for demanding low-voltage power distribution.
• E4V very-high-breaking-capacity performance level for systems with exceptionally high prospective fault currents.
• PR121/P-LI electronic protection release provides overload and instantaneous short-circuit protection.
• 150 kA ultimate and service short-circuit breaking capacity at 400 V AC.
• 130 kA ultimate and service short-circuit breaking capacity at 500 V AC.
• 100 kA ultimate and service short-circuit breaking capacity at 690 V AC.
• Fixed three-pole construction with rear flat horizontal terminals for switchboard integration.
• Four auxiliary contacts provide circuit-breaker open/closed status signalling.

Key Features

• ABB SACE Emax E4V 3200 series.
• 3200 A rated uninterrupted current.
• Three-pole circuit-breaker configuration.
• Fixed installation version.
• PR121/P-LI R3200 electronic overcurrent release.
• Long-time (L) overload protection.
• Instantaneous (I) short-circuit protection.
• 150 kA Icu and Ics at 220–440 V AC.
• 130 kA Icu and Ics at 500 V AC.
• 100 kA Icu and Ics at 660–690 V AC.
• 100 kA short-time withstand current for 1 s.
• 75 kA short-time withstand current for 3 s.
• 1000 V rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• Rear flat horizontal main terminals.
• Four auxiliary contacts with circuit-breaker open/closed position indication.

Very-High-Performance Protection for Power Distribution

Air circuit breakers such as the ABB SACE Emax E4V provide switching and protection for high-current low-voltage distribution networks. The electronic trip unit monitors electrical conditions and initiates circuit interruption when configured protection thresholds are exceeded, helping protect switchgear, cables, busbars and connected equipment against damaging overload and short-circuit currents.

The PR121/P-LI release combines long-time overload protection with instantaneous short-circuit protection. Together with the E4V circuit breaker's 150 kA breaking capacity at 400 V AC and high short-time withstand capability, this makes the 1SDA056880R1 particularly suitable for demanding main distribution systems where very high prospective short-circuit currents must be safely interrupted.

Typical Applications

• Main low-voltage electrical distribution switchboards.
• Industrial power distribution systems.
• Manufacturing and process plants.
• Commercial and infrastructure electrical installations.
• Transformer secondary circuit protection.
• Main incomer and high-current feeder protection.
• Electrical installations with exceptionally high prospective short-circuit currents.
• High-capacity power distribution and switchgear assemblies.