Product type: Dummy Module for submodule slots, belonging to the ABB Advant OCS open control system accessory system. Its core function is to fill unused submodule slots, ensuring the physical integrity and operational stability of the system.
Model decoding: RB520 ("RB" is the accessory series code, representing slot related auxiliary modules; 520 "is the specification code, adapted to the slot size of specific submodules, with order number 3BSE003528R1, originating from Sweden, Malta or India.
Physical specifications: Adopting an ultra compact design, the size is only 28 × 16 × 3cm, with a net weight of 0.028kg. The metal shell material is compatible with the standard submodule slots of the ABB Advant controller subrack, and can be installed through DIN rails or panel snap fasteners without the need for tools for insertion and removal.
ABB RB520 Dummy Module For Submodule Slot
Core attributes and identification
Product type: Dummy Module for submodule slots, belonging to the ABB Advant OCS open control system accessory system. Its core function is to fill unused submodule slots, ensuring the physical integrity and operational stability of the system.
Model decoding: RB520 ("RB" is the accessory series code, representing slot related auxiliary modules; 520 "is the specification code, adapted to the slot size of specific submodules, with order number 3BSE003528R1, originating from Sweden, Malta or India.
Physical specifications: Adopting an ultra compact design, the size is only 28 × 16 × 3cm, with a net weight of 0.028kg. The metal shell material is compatible with the standard submodule slots of the ABB Advant controller subrack, and can be installed through DIN rails or panel snap fasteners without the need for tools for insertion and removal.
Key technical parameters
Adaptation system
ABB Advant OCS open control system, Advant Master system submodule slots
It needs to match the mechanical dimensions of the slot and is not compatible with the I/O slots of ABB T series controllers (such as the rack slot of T-1521Z)
Working environment
Temperature -40 ℃ to+85 ℃ (storage), -25 ℃ to+70 ℃ (working), humidity 5% to 95% (no condensation)
Adopting industrial grade metal casing, with basic dust-proof capability, suitable for conventional industrial environments such as factory workshops and control rooms
Electrical characteristics
Passive module, no external power supply required, no input/output channels, not involved in signal processing and communication
Different from conventional I/O modules, it has no processor, communication interface, or power module, and only serves as a physical placeholder
Certification standards
Compliant with CE and UL international safety standards, HS code 85389091 (belonging to the category of industrial control equipment accessories)
Ensure compliant use in global industrial settings and can be cleared through formal customs clearance
Ordering
HS Code:
853890 -- ELECTRICAL MACHINERY AND EQUIPMENT AND PARTS THEREOF; SOUND RECORDERS AND REPRODUCERS, TELEVISION IMAGE AND SOUND RECORDERS AND REPRODUCERS, AND PARTS AND ACCESSORIES OF SUCH ARTICLES; Parts suitable for use solely or principally with the apparatus of heading|8535, 8536|or 8537; Other
Customs Tariff Number:85389099
Dimensions
Product Net Depth / Length:0 mm
Product Net Height:0 mm
Product Net Width:0 mm
Product Net Weight:0.028 kg
Core functions and technological value
1. Physical protection and system stability guarantee
Slot sealing protection: As a blank occupying module, inserting the unused submodule slot can completely seal the slot, preventing dust, oil stains, metal debris and other foreign objects from entering the rack, and avoiding backplane bus short circuits or contact oxidation faults caused by foreign objects. For example, in high dust environments such as metallurgical workshops, the probability of system shutdown caused by dust entering the slot can be reduced by up to 80%.
Airflow optimization and heat dissipation assistance: adapted to the air duct design of ABB Advant controller subracks, it can guide the cooling airflow to flow along the preset path after insertion, avoiding airflow disorder caused by empty slots, and ensuring that the heat dissipation efficiency of adjacent operating modules (such as communication modules and I/O modules) is improved by more than 15%.
Mechanical structure reinforcement: The metal shell is tightly integrated with the slot buckle, which can enhance the overall structural rigidity of the rack, reduce the impact of vibration during equipment handling or operation on the stability of adjacent module connections, especially suitable for application scenarios of mobile control equipment (such as vehicle industrial control systems).
2. System adaptation and operational convenience
Bus state maintenance: Some ABB Advant systems require that submodule slots must be fully filled to maintain impedance matching of the backplane bus. RB520 simulates the mechanical interface characteristics of real modules to ensure that bus signal transmission is not affected by empty slots and avoid system reporting "slot not configured" errors.
Reserve expansion foundation: During the initial deployment phase of the system, use RB520 to fill the slots of future expansion modules, which can complete wiring planning and rack space reservation in advance; When upgrading later, simply replace with real modules (such as communication interface modules, I/O modules) without the need to readjust the system architecture.
Low cost operation and maintenance replacement: When a submodule fails and replacement parts have not been purchased yet, the RB520 blocking slot can be temporarily inserted to maintain the basic operation of the system, avoid the entire rack being shut down due to the loss of a single module, and buy time for fault handling.
Selection and maintenance precautions
1. Key indicators for selection
Slot compatibility: For the submodule slots of the ABB Advant OCS system that are compatible with the core, the slot size needs to be confirmed according to the rack model (such as Advant Master 400) to avoid confusion with the I/O slots of the T series controller (the two have different mechanical interfaces and cannot be used interchangeably).
Application scenario requirements: Priority should be given to high dust and high oil pollution environments (such as food processing and machinery manufacturing) to enhance slot sealing protection; When the system is in the expansion planning phase or emergency phase, it is recommended to reserve in batches to ensure the continuity of operation and maintenance.
Certification and Compliance: When purchasing, it is necessary to confirm that the product has ABB original factory certification mark and HS code 85389091 to avoid non original products from causing poor sealing of the slot or damage to the interface due to dimensional deviations.
2. Maintenance and usage standards
Installation operation: When inserting into the slot, align it with the buckle position and gently push it in until you hear a "click" sound, ensuring complete fixation; When disassembling, hold the unlock buttons on both sides to pull it out. Do not forcefully pull or drag to avoid damaging the slot interface.
Regular inspection: Clean the dust on the RB520 shell every month (wipe with a dry cloth, do not use liquid cleaning agents), check whether the shell is deformed and whether the buckle is intact; Check the tightness of slot connections every quarter to avoid module looseness caused by vibration.
Storage management: The spare RB520 should be stored in a dry and ventilated environment (humidity ≤ 60%, temperature 0-40 ℃) to avoid contact with corrosive substances; The metal shell needs to be treated with anti-static measures and stored separately in anti-static bags.





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