ABB 1SDA073910R1 E2.2 W FP Iu=2000 4p HR HR 2000A 4-Pole Withdrawable Chassis Part Power Circuit Breaker

The ABB 1SDA073910R1 E2.2 W FP Iu=2000 4p HR HR is a 2000A 4-pole withdrawable chassis part (fixed part) for the SACE Emax 2 series power circuit breaker, engineered for high-demand industrial power distribution and switchgear applications. The E2.2 W FP Iu=2000 4p HR HR fixed part provides the cradle and bus connections necessary for withdrawable ACB installations, enabling safe isolation and maintenance without de-energising the main busbars.

Technical Specifications

Certifications & Standards

• RoHS: Compliant with EU Restriction of Hazardous Substances Directive
• REACH: Compliant with EU REACH chemical safety regulation
• IEC: Manufactured to International Electrotechnical Commission standards
• IEC 60947-2: Certified to the IEC standard for low-voltage circuit breakers
• ATEX: Approved for use in potentially explosive atmospheres
• CSA: Canadian Standards Association certified for North American markets
• CE: Meets European Conformity requirements for electrical equipment
• VDE: Verified by Verband der Elektrotechnik to German/European electrical standards

Applications & Use Cases

• Main incoming and bus-coupler positions in MV/LV switchgear panels and power distribution boards
• Generator protection and tie-breaker applications in industrial plants and data centres
• Marine, offshore, and mining installations requiring ATEX-rated withdrawable breaker configurations
• Retrofit and replacement of E2.2 series fixed parts in existing Emax 2 switchgear installations
• High-current motor feeder protection in heavy industrial and process automation environments

Frequently Asked Questions

What does the "FP" designation mean in E2.2 W FP Iu=2000 4p HR HR?
"FP" stands for Fixed Part — this is the chassis/cradle assembly that remains permanently in the switchgear panel. The moving part (the circuit breaker itself) plugs into and withdraws from this fixed part, allowing safe removal for maintenance.

Is this chassis part compatible with all E2.2 withdrawable circuit breakers?
The E2.2 W FP Iu=2000 4p HR HR is specifically designed for 4-pole, 2000A-frame E2.2 withdrawable units within the SACE Emax 2 system. Always verify the frame size, pole count, and HR (horizontal rear) connection configuration before ordering.

What does "HR HR" refer to in the catalog designation?
"HR" denotes Horizontal Rear bus-bar connection orientation on both the line and load sides of the fixed part, indicating how the power busbars connect to the chassis within the switchgear enclosure.