1SDA057160R1 ABB E6V6300PR121/P-LI 6300 A 4-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB E6V6300PR121/P-LI 6300 A Air Circuit Breaker?

The ABB E6V6300PR121/P-LI, order code 1SDA057160R1, is a high-capacity SACE Emax E6 V air circuit breaker moving part designed for protection, switching and isolation in demanding low-voltage power distribution systems. Rated at 6300 A, this four-pole withdrawable unit combines ABB's E6 V high-performance breaker platform with a PR121/P-LI R6300 electronic overcurrent release.

As part of the ABB SACE Emax range, the breaker is engineered for industrial switchboards, power distribution centres and critical infrastructure where very high continuous current capacity and dependable fault protection are required. The PR121/P-LI trip unit provides LI protection functions covering long-time overload and instantaneous short-circuit protection.

This configuration is a four-pole withdrawable moving part with a rated current of 6300 A. It is fitted with four auxiliary contacts and open/closed breaker position indication, while its draw-out construction supports efficient inspection, servicing and replacement within a compatible SACE Emax fixed part.

Key Advantages

• Very high 6300 A rated current for major low-voltage power distribution systems.
• E6 V high-performance platform for demanding high-current and high-fault-level applications.
• PR121/P-LI R6300 electronic overcurrent release for dependable circuit protection.
• LI protection functions provide long-time overload and instantaneous short-circuit protection.
• Four-pole withdrawable configuration for serviceable high-current switchgear installations.
• Draw-out construction facilitates breaker inspection, maintenance and replacement.
• Fitted with four auxiliary contacts and open/closed position indication.
• Suitable for main incoming, transformer secondary and major feeder protection duties.

Key Features

• ABB SACE Emax E6 V series.
• 6300 A rated current.
• Four-pole configuration.
• Withdrawable moving part execution.
• PR121/P-LI R6300 electronic overcurrent release.
• Long-time overload protection (L).
• Instantaneous short-circuit protection (I).
• V performance level for demanding power distribution duties.
• Four auxiliary contacts for breaker status signalling.
• Open/closed breaker position indication.
• Designed for use with a compatible SACE Emax withdrawable fixed part.
• High-current switching and protection for industrial and infrastructure systems.

High-Performance Protection for Critical Power Distribution

Air circuit breakers such as the ABB SACE Emax E6 protect high-current low-voltage distribution systems against overloads and short-circuit faults while providing reliable switching and isolation of major electrical circuits. With its 6300 A current rating and E6 V performance level, this breaker is suited to substantial electrical systems where both very high continuous currents and severe prospective fault currents must be managed.

The PR121/P-LI electronic release provides long-time overload and instantaneous short-circuit protection. Combined with the withdrawable E6 V construction and a breaking capability of up to 150 kA at 415 V AC, it provides a serviceable high-performance solution for protecting busbars, conductors, transformers and connected equipment in critical distribution networks.

Typical Applications

• Main incoming protection for high-current low-voltage switchboards.
• Large industrial power distribution systems.
• Manufacturing and process plant electrical infrastructure.
• Power distribution centres and main switchboards.
• Transformer secondary protection.
• High-current feeder and busbar protection.
• Critical infrastructure and large-scale electrical distribution networks.