ABB 1SCA022700R9520 OFAA00GG100 HRC Fuse Link NH00 gG 100A 690V for Low Voltage Circuit Protection

The complete ABB order number and the OFAA00GG100 type designation are useful for accurate technical identification. ABB product documentation associates product ID 1SCA022700R9520 with OFAA00GG100 and describes it as an HRC fuse link with NH00 size and gG characteristics. :contentReference[oaicite:1]{index=1}

Product Identification

• Manufacturer: ABB
• Product ID: 1SCA022700R9520
• Type: OFAA00GG100
• Product Type: HRC Fuse Link
• Fuse Family: FuseLine
• Fuse Size: NH00
• Utilization Category: gG
• Rated Current: 100 A
• Rated Voltage: 690 V AC
• Standard: IEC 60269
• Application: Low Voltage Circuit Protection

ABB OFAA00GG100 Fuse Link

The OFAA00GG100 is a high-breaking-capacity fuse link designed around the NH00 standardized fuse format. Its knife-blade construction allows installation in compatible fuse bases and switching assemblies designed for the corresponding NH00 dimensions.

The 100 A rating defines the nominal current associated with the fuse link under its specified operating conditions. The 690 V rating identifies the applicable system voltage level for the ABB FuseLine product. The fuse must be selected according to the electrical characteristics of the complete installation rather than by rated current alone.

NH00 Fuse Construction

NH fuse links use a standardized knife-contact construction that allows the fuse to be installed into compatible fuse carriers. The NH00 designation identifies the physical fuse size and corresponding mounting arrangement.

For ABB 1SCA022700R9520, the NH00 format is combined with a 100 A gG fuse characteristic. This combination provides a defined electrical and mechanical reference for selecting a compatible fuse base or fuse-switch assembly.

The physical dimensions and terminal arrangement should be checked against the applicable equipment before installation.

gG Utilization Category

The gG utilization category is associated with general-purpose low-voltage fuse protection. It is commonly applied where circuits require protection against excessive current resulting from overload and short-circuit conditions.

The fuse element responds according to its time-current characteristic. Smaller overcurrents can require a longer interruption time, while higher fault currents can produce much faster operation.

The actual protection behavior depends on the complete electrical installation, including prospective fault current, conductor characteristics, system voltage and coordination with other protective devices.

100 A Rated Current

ABB OFAA00GG100 has a rated current of 100 A. This rating is an important parameter when coordinating the fuse with the protected circuit and associated conductors.

A 100 A fuse should not simply be selected because the normal operating current is close to 100 A. Engineering selection should also consider continuous load, ambient conditions, cable capacity, inrush currents, fault levels and coordination with upstream and downstream protective devices.

The complete electrical design determines whether the 100 A fuse rating is appropriate for a particular application.

690 V Rated Voltage

The ABB 1SCA022700R9520 fuse link is rated for 690 V. The rated voltage is a fundamental parameter for safe circuit interruption because the fuse must be suitable for the voltage level of the electrical system.

ABB documentation places the OFAA00GG100 within its FuseLine gG 690 V fuse-link range. The product table identifies the NH00 100 A version under order number 1SCA022700R9520. :contentReference[oaicite:2]{index=2}

The voltage rating should always be evaluated together with the system’s AC or DC characteristics and the applicable installation requirements.

HRC Fuse Function

HRC stands for High Rupturing Capacity. An HRC fuse is designed to interrupt high fault currents while maintaining the required electrical containment within the fuse construction.

During normal operation, the fuse element carries the circuit current. When an excessive current develops, the fuse element heats according to the current level and eventually interrupts the circuit. The internal construction is designed to control the interruption process and limit the effects associated with a high-current fault.

The exact interruption characteristics depend on the fuse design and the electrical conditions of the installation.

Low Voltage Circuit Protection

The OFAA00GG100 can be used as part of low-voltage circuit protection systems where an NH00 gG fuse link is required. Fuse links can protect electrical conductors and equipment against damaging overcurrent conditions.

In an industrial installation, the fuse may be integrated into a fuse switch, fuse carrier or compatible distribution assembly. The associated equipment must provide the correct mechanical interface for the NH00 fuse format.

Protection coordination should be established during system design to ensure that the fuse operates appropriately relative to other protective devices.

Technical Specification Summary

Power Loss

Power loss is an important parameter when evaluating a fuse link within an electrical installation. ABB documentation identifies the OFAA00GG100 as having approximately 6.7 W of power loss in the relevant FuseLine ordering table, while current ABB product data lists 7.5 W at rated current. :contentReference[oaicite:3]{index=3}

The applicable value should be taken from the technical documentation corresponding to the specific product revision and application conditions. Power loss can influence temperature rise within an enclosed fuse assembly, particularly where several protective devices are installed together.

IEC 60269 Standard

ABB identifies the OFAA00GG100 as a fuse link associated with IEC 60269. This standard provides requirements and characteristics for low-voltage fuses and establishes terminology and test conditions relevant to fuse-link performance.

Using the standard designation together with the ABB product number helps provide a consistent technical reference when integrating the fuse into an electrical protection system.

FuseLine Product Family

The OFAA00GG100 is part of the ABB FuseLine family. The range includes different fuse sizes and rated currents, allowing engineers to select a fuse according to the required current and physical installation arrangement.

Within the NH00 size, ABB lists multiple current ratings, including 80 A, 100 A and 125 A. The 100 A version is identified as OFAA00GG100 with product ID 1SCA022700R9520. :contentReference[oaicite:4]{index=4}

This structured range makes the complete type designation particularly important when distinguishing between otherwise similar fuse links.

Electrical Coordination

Correct fuse selection requires coordination between the fuse, conductor and protected equipment. The rated current is only one of several parameters involved in protection design.

Engineers may need to evaluate the load current, cable ampacity, prospective short-circuit current, system voltage, ambient temperature, installation method and selectivity requirements.

The fuse’s time-current characteristics should also be considered when coordinating it with upstream and downstream protective devices.

Application in Industrial Electrical Systems

NH00 gG fuse links can be used in a variety of low-voltage industrial electrical systems. Applications can include distribution assemblies, motor-related protection arrangements, control panels and other installations where a suitable general-purpose fuse link is required.

The actual application depends on the characteristics of the circuit and the compatible fuse equipment. The 100 A rating and 690 V voltage rating provide the primary electrical identification for this specific ABB fuse link.

Mechanical Compatibility

Mechanical compatibility is determined by the NH00 fuse format and the corresponding knife-contact arrangement. The fuse carrier or switch-fuse assembly must be designed for the applicable NH00 dimensions and contact configuration.

A fuse with a similar current rating but a different physical size should not be assumed to be mechanically interchangeable.

For equipment records, both OFAA00GG100 and 1SCA022700R9520 should be retained to provide a precise product reference.

Fuse Operation During Overcurrent

When an overcurrent occurs, the fuse element experiences increased heating. The response time depends on the magnitude and duration of the current.

A relatively moderate overload can result in a longer operating time, while a severe short-circuit current can cause rapid interruption. This time-current behavior is an essential part of fuse protection design.

The fuse is therefore selected not only according to its nominal current but also according to the protection requirements of the complete circuit.

HRC Protection Characteristics

The HRC construction is intended to provide controlled interruption under high-current fault conditions. This is particularly relevant in industrial electrical systems where available fault current can be significant.

The interruption capability must be suitable for the prospective fault current of the installation. System designers should verify the applicable breaking-capacity information and installation requirements from the relevant ABB technical documentation.

Installation Considerations

Installation should use a compatible NH00 fuse carrier or fuse-switch assembly and follow the applicable electrical installation requirements. The fuse should be correctly seated so that the knife contacts establish the intended electrical connection.

The surrounding assembly should also provide appropriate clearance, enclosure and thermal conditions for the fuse’s rated operating characteristics.

Electrical installation work should be performed according to the relevant safety procedures and local regulations.

Maintenance and Identification

Fuse links are passive protection components, but their condition is important to the continuity and protection of the electrical system. Maintenance procedures can include visual inspection of the fuse assembly, verification of contact conditions and investigation of any fuse operation.

If the fuse has operated because of an overcurrent condition, the underlying cause should be investigated before the circuit is returned to service.

The replacement component should be identified using the complete ABB product number 1SCA022700R9520 and type OFAA00GG100.

Application Selection

When selecting ABB 1SCA022700R9520, engineers should confirm the required fuse size, rated current, rated voltage, utilization category and compatible mounting system.

For this product, the key identification characteristics are NH00, gG, 100 A and 690 V. ABB’s catalog information confirms these parameters for OFAA00GG100. :contentReference[oaicite:5]{index=5}

The electrical installation should also be evaluated for fault current and coordination requirements before the fuse is selected for a particular circuit.

Difference Between Product ID and Type Code

ABB uses both a product identification number and a type designation for this fuse link. The product ID is 1SCA022700R9520, while the type designation is OFAA00GG100.

Both identifiers refer to the same ABB fuse-link configuration. Keeping both identifiers in technical records is useful because equipment documentation may reference either the ABB order number or the OFAA type code.

Technical Documentation

For maintenance databases, electrical drawings and spare-component records, the recommended identification is “ABB 1SCA022700R9520 — OFAA00GG100 HRC Fuse Link, NH00, gG, 100 A, 690 V.”

This description combines the manufacturer’s order number with the electrical characteristics that distinguish the component from other FuseLine fuse links.

Role in Electrical Protection

The primary purpose of ABB OFAA00GG100 is electrical overcurrent protection. It provides a defined protective interruption function within a compatible low-voltage circuit.

Its passive construction means that it does not require electronic control, software or external communication. Its operating behavior is determined by the fuse element, fuse construction and electrical conditions of the circuit.

This makes the fuse link fundamentally different from circuit breakers, electronic protection relays and other active protection devices.

Conclusion

ABB 1SCA022700R9520 is the ABB product ID for the OFAA00GG100 HRC Fuse Link. The component belongs to the FuseLine family and is identified as an NH00 size, gG utilization-category fuse link with a 100 A rated current and 690 V rated voltage. ABB’s product catalog and FuseLine documentation confirm these core characteristics. :contentReference[oaicite:6]{index=6}

The OFAA00GG100 is intended for general-purpose low-voltage overcurrent protection and uses the standardized NH00 knife-blade fuse format. Its application depends on correct electrical coordination, compatible mounting equipment, rated system voltage, prospective fault current and the characteristics of the protected circuit.

For technical identification, the complete designation should be retained as “ABB 1SCA022700R9520 — OFAA00GG100 HRC Fuse Link.” The combination of ABB product ID, OFAA type code, NH00 size, gG category, 100 A current rating and 690 V voltage rating provides a precise reference for electrical protection documentation and equipment databases.