1SDA056156R1 ABB E3N3200 PR122/P-LSI 3200 A 4P Fixed Air Circuit Breaker

Why Choose the ABB E3N3200 PR122/P-LSI Air Circuit Breaker?

The ABB E3N3200 PR122/P-LSI, order code 1SDA056156R1, is a four-pole fixed air circuit breaker (ACB) designed for high-current low-voltage power distribution and protection. Part of the ABB SACE Emax E3 series, it combines a rated uninterrupted current of 3200 A with the PR122/P-LSI R3200 electronic overcurrent release.

The PR122/P-LSI release provides long-time, short-time and instantaneous protection, helping safeguard conductors, switchgear and connected equipment against sustained overloads and short-circuit conditions. Its electronic protection functions support coordinated fault protection in industrial, commercial and infrastructure power distribution systems.

This E3N3200 configuration uses fixed construction with rear horizontal terminals and is fitted with four auxiliary contacts plus circuit-breaker open/closed position indication. Rated for operation up to 690 V AC, the E3N performance level provides 65 kA ultimate and service short-circuit breaking capacity across its specified AC voltage range, making it suitable for demanding high-current switchboards.

Key Advantages

• Proven ABB SACE Emax E3N air circuit breaker platform.
• 3200 A rated uninterrupted current for high-capacity power distribution.
• Four-pole configuration for comprehensive switching and isolation.
• Advanced PR122/P-LSI R3200 electronic overcurrent release.
• Long-time, short-time and instantaneous protection against overload and short-circuit conditions.
• 65 kA Icu and Ics throughout the specified AC operating-voltage range.
• 65 kA short-time withstand current for both 1-second and 3-second durations.
• Fixed construction with rear horizontal terminals for switchboard integration.
• Four auxiliary contacts and open/closed indication support signalling and control integration.

Key Features

• ABB SACE Emax E3N series.
• 3200 A rated current.
• Four-pole fixed air circuit breaker.
• PR122/P-LSI R3200 electronic overcurrent release.
• LSI protection functions: Long-time, Short-time and Instantaneous.
• 690 V AC rated operational voltage.
• 65 kA Icu and Ics at 400/415 V AC.
• 65 kA Icu and Ics at 690 V AC.
• 65 kA Icw for 1 s and 3 s.
• Rear horizontal main terminals.
• Four auxiliary contacts.
• Open/closed circuit-breaker position indication.
• 20,000-cycle mechanical durability.
• IEC-compliant construction.

Reliable LSI Protection for High-Current Power Distribution

The ABB SACE Emax E3N3200 is engineered for high-capacity low-voltage distribution systems requiring dependable switching, isolation and fault protection. Its 3200 A current rating, combined with 65 kA ultimate and service short-circuit breaking capacity at voltages up to 690 V AC, makes it well suited to main switchboards, transformer-fed networks and large industrial distribution systems.

The PR122/P-LSI electronic release combines long-time overload protection, short-time protection for selective fault coordination and instantaneous protection against severe short circuits. Together with fixed rear-horizontal-terminal construction, four auxiliary contacts, open/closed position indication and a 65 kA short-time withstand capability, the E3N3200 provides robust protection and practical integration into critical low-voltage switchgear.

Typical Applications

• Main low-voltage electrical distribution switchboards.
• High-current industrial power distribution systems.
• Manufacturing and process plant switchgear.
• Commercial and infrastructure electrical distribution.
• Transformer secondary protection and distribution.
• Generator and standby power installations.
• Main incomer and high-current feeder protection.
• Fixed switchgear requiring adjustable LSI overcurrent protection.