ABB 1SDA056789R1 air circuit breaker_Xiamen XingRuiJia Import and Export CO,LTD

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Model：ABB 1SDA056789R1 air circuit breaker

Brand: ABB 2026-08-04
Price range (USD): 1000-20000
Country: Sweden
Parameter: Rated current 4000 A
Rated voltage range Up to 690 V AC
Protection functions LSIG (Long-time, Short-time, Instantaneous, Ground fault)
Trip unit PR122/P-LSIG

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Xiamen Xingruijia Import and Export Co., Ltd. has been specializing in the sales of industrial control equipment spare parts for 20 years. For more ABB models, please refer to the product list . If you need other brands or models, please contact us. We have a variety of brands and models in stock, and we can purchase difficult to order models for you. We look forward to your inquiry!!!

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ABB 1SDA056789R1

ABB 1SDA056789R1 is a SACE Emax E4S 4000A low-voltage air circuit breaker (ACB) designed for high-power industrial and power distribution applications. It is a three-pole fixed type circuit breaker equipped with a PR122/P-LSIG electronic overcurrent release, suitable for protection and control of large electrical systems.

Product Model

Manufacturer: ABB
Product ID: 1SDA056789R1
Series: ABB SACE Emax
Type: E4S 4000 PR122/P-LSIG
Rated Current (In): 4000 A
Number of Poles: 3P (three-pole)
Installation Type: Fixed (F)
Terminal Type: Rear horizontal terminals (HR)
Protection Unit: PR122/P-LSIG R4000 electronic trip unit

Technical Specifications

Parameter	Specification
Rated current	4000 A
Rated voltage range	Up to 690 V AC
Protection functions	LSIG (Long-time, Short-time, Instantaneous, Ground fault)
Trip unit	PR122/P-LSIG
Poles	3 poles
Circuit breaker type	Air circuit breaker (ACB)
Mounting	Fixed installation
Auxiliary contacts	4 auxiliary contacts
Position indication	Open/Closed status indication
Electrical endurance	Up to 5,000 cycles (≤440 V), 4,000 cycles (500–690 V)
Mechanical endurance	15,000 cycles
Weight	Approx. 81 kg
Dimensions (W × H × D)	566 × 418 × 302 mm

Main Features

High-current protection: Designed for 4000A-class power distribution systems.
Advanced electronic protection: PR122/P-LSIG provides adjustable protection against overload, short circuit, and earth fault conditions.
Reliable switching performance: Suitable for demanding industrial environments requiring high breaking capacity and operational reliability.
Modular ABB SACE Emax platform: Supports integration into modern electrical distribution systems.

Application Areas

ABB 1SDA056789R1 is commonly used in:

Industrial power distribution systems
Power plants
Oil & gas facilities
Data centers
Large manufacturing plants
Low-voltage switchgear assemblies
Main incoming and feeder protection panels

Product Conclusion

ABB 1SDA056789R1 E4S 4000 PR122/P-LSIG is a heavy-duty air circuit breaker for high-capacity electrical networks. With a 4000A rating, PR122/P-LSIG intelligent protection, and robust SACE Emax design, it provides reliable protection, monitoring, and switching control for critical industrial power systems.

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