1SDA056906R1 ABB E4V3200 PR121/P-LSIG 3200 A 4-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB E4V3200 PR121/P-LSIG Air Circuit Breaker?

The ABB 1SDA056906R1 is a high-performance SACE Emax E4V air circuit breaker moving part designed for switching and comprehensive protection in high-current low-voltage electrical distribution systems. Identified as E4V3200 PR121/P-LSIG, this four-pole withdrawable circuit breaker combines a 3200 A rated current with ABB's PR121/P-LSIG R3200 electronic overcurrent release.

As part of the ABB SACE Emax / New Emax range, the E4V3200 is engineered for installations with very high prospective fault currents. The V performance level provides a short-circuit breaking capacity of 150 kA at 415 V AC, while its rated short-time withstand current reaches 100 kA for 1 s. Its withdrawable moving-part construction enables the circuit breaker to be disconnected from the corresponding fixed part for inspection, servicing or replacement.

The integrated PR121/P-LSIG R3200 electronic trip unit provides long-time overload (L), short-time short-circuit (S), instantaneous short-circuit (I) and ground-fault (G) protection. With a 3200 A rated uninterrupted current and four-pole configuration, the 1SDA056906R1 is well suited to critical main incoming, feeder and distribution protection duties requiring very high breaking capacity, ground-fault protection and serviceable withdrawable construction.

Key Advantages

• High-capacity 3200 A air circuit breaker moving part for demanding low-voltage power distribution.
• Four-pole configuration for three-phase four-wire electrical systems.
• PR121/P-LSIG R3200 electronic trip unit provides long-time, short-time, instantaneous and ground-fault protection.
• Very high 150 kA short-circuit breaking capacity at 415 V AC.
• 100 kA rated short-time withstand current for 1 s.
• Integrated ground-fault protection for enhanced electrical system protection.
• Withdrawable moving-part construction supports convenient inspection, servicing and replacement.
• Fitted with four auxiliary contacts and circuit breaker open/closed position indication.

Key Features

• ABB SACE Emax E4V series.
• 3200 A rated uninterrupted current.
• Four-pole circuit breaker configuration.
• PR121/P-LSIG R3200 electronic overcurrent release.
• Long-time overload (L) protection.
• Short-time short-circuit (S) protection.
• Instantaneous short-circuit (I) protection.
• Ground-fault (G) protection.
• 150 kA short-circuit breaking capacity at 415 V AC.
• 100 kA short-time withstand current for 1 s.
• Withdrawable moving-part design for use with the corresponding fixed part.
• Fitted with four auxiliary contacts.
• Integrated open/closed circuit breaker position indication.
• Part of ABB's established SACE Emax low-voltage circuit breaker platform.

Very High Breaking Capacity with Comprehensive LSIG Protection

The ABB E4V3200 is designed for substantial low-voltage distribution systems where very high prospective fault currents demand robust interruption capability. Its V performance level provides 150 kA short-circuit breaking capacity at 415 V AC, while the 100 kA rated short-time withstand current for 1 s supports demanding high-current distribution applications.

The PR121/P-LSIG electronic release combines long-time overload, short-time short-circuit, instantaneous short-circuit and ground-fault protection. This comprehensive LSIG arrangement helps protect conductors, busbars, switchgear and connected equipment against multiple fault conditions. Combined with its four-pole configuration and withdrawable moving-part construction, the 1SDA056906R1 provides a practical solution for critical switchboards where protection performance and maintainability are important requirements.

Typical Applications

• Main incoming circuit protection in high-current low-voltage switchboards.
• Three-phase four-wire electrical distribution systems.
• Industrial power distribution systems with very high prospective fault currents.
• Transformer secondary distribution and protection.
• Protection of high-current distribution feeders and busbar systems.
• Electrical systems requiring integrated ground-fault protection.
• Large commercial, infrastructure and manufacturing installations.
• High-fault-level switchgear requiring withdrawable circuit breakers.