1SDA059643R1 ABB E4H/E 3200 Special 1150 V AC Air Circuit Breaker

Why Choose the ABB 1SDA059643R1 E4H/E 3200 Special 1150 V AC Air Circuit Breaker?

The ABB 1SDA059643R1 is a special SACE Emax E4H/E air circuit breaker (ACB) designed for demanding industrial power distribution applications operating at 1150 V AC. As part of the ABB New Emax product range, this specialised E4-frame version combines a rated current of 3200 A with H-level short-circuit performance for reliable protection and switching in high-current AC electrical systems.

Developed for installations requiring a higher operating voltage than conventional low-voltage distribution equipment, the E4H/E 3200 special execution provides robust circuit protection for industrial switchgear and power networks. Its 65 kA rated short-time withstand current for 1 s enables the breaker to withstand substantial fault currents while supporting selective protection and coordination within the electrical installation.

With a rated operational voltage of 1150 V AC, rated insulation voltage of 1250 V and rated impulse withstand voltage of 12 kV, the 1SDA059643R1 is engineered for specialised high-voltage AC applications. Its 3200 A rated operational and uninterrupted current makes it particularly suitable for high-capacity industrial distribution networks and specialised ABB SACE Emax switchgear.

Key Advantages

• Special ABB SACE Emax E4H/E air circuit breaker for demanding power distribution applications.
• 3200 A rated current for high-capacity industrial electrical systems.
• 1150 V AC rated operational voltage for specialised higher-voltage AC installations.
• 1250 V rated insulation voltage for dependable electrical isolation.
• 12 kV impulse withstand voltage for enhanced insulation performance.
• 65 kA short-time withstand current for 1 s for demanding fault conditions.
• H-level short-circuit performance for high-current distribution networks.
• Robust SACE Emax construction with high mechanical endurance.

Key Features

• ABB SACE New Emax E4H/E series.
• 3200 A rated current.
• 3200 A rated operational current.
• 3200 A rated uninterrupted current.
• 1150 V AC rated operational voltage.
• 1250 V rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 65 kA rated short-time withstand current for 1 s.
• H short-circuit performance level.
• 15,000-cycle mechanical durability.
• Designed for AC electrical systems.
• Special 1150 V AC Emax execution.

Specialised Protection for 1150 V AC Power Distribution

Air circuit breakers such as the ABB SACE Emax E4H/E provide protection and switching for high-capacity industrial electrical networks. This special execution is designed for systems operating at 1150 V AC, extending its suitability to specialised installations where conventional low-voltage circuit-breaker ratings are insufficient.

The combination of a 3200 A continuous-current capability, 1250 V insulation rating and 65 kA short-time withstand current enables the E4H/E 3200 to support demanding power-distribution architectures. Its robust mechanical construction and H-level performance make it suitable for industrial switchgear where dependable operation under high electrical loads is essential.

Typical Applications

• Specialised 1150 V AC industrial power distribution systems.
• High-current industrial switchboards and switchgear.
• Heavy manufacturing and process plants.
• Mining and mineral-processing electrical systems.
• Large machinery and production installations.
• High-capacity electrical distribution networks.
• Industrial systems requiring high short-time withstand capability.
• Special-purpose ABB SACE Emax switchgear assemblies.