ABB SB822 Safety Signal Conditioning Module

Description

Real-World Use & Application Scenarios

In industrial automation and control systems where continuous operation and data integrity are critical, reliable backup power solutions are essential to prevent costly downtime. The ABB SB822 rechargeable battery unit is widely applied in environments such as process industries, utilities, transportation, and manufacturing facilities where ABB’s AC 800M controllers and S800 I/O systems operate. These industries depend on uninterrupted power to ensure safety system functionality and data retention during power interruptions or outages. The ABB SB822 is designed specifically to provide secure, on-demand backup power that supports controllers and communication devices, preventing system resets or loss of information that could challenge operational continuity.

This battery unit is integral in settings where components must remain powered to maintain communication paths, control logic, and safety monitoring during mains failures. The ABB SB822 supports system resilience by delivering portable power that complies with safety and operational standards, making it applicable not only in industrial plants but also in infrastructure sectors like water treatment and energy distribution where uptime is mandatory.

Its DIN-rail mount form factor and lithium-ion battery technology make it a practical choice for engineers looking for a compact, long-lasting energy source that integrates neatly into existing control cabinets. By ensuring backup power for ABB’s controllers, the SB822 helps reduce risk and enhances system reliability in mission-critical automation systems.

Product Introduction & Positioning

The ABB SB822 is a rechargeable lithium-ion battery unit designed as an external backup power source for ABB’s AC 800M controllers and other system 800xA components. It is engineered to provide 3.6 V output and supports a maximum output current of 0.05 A, delivering stable power during short-term power supply interruptions to prevent controller resets or unsafe conditions.

Positioned within ABB’s Compact Product Suite, the SB822 ensures seamless power continuity for process automation controllers, communication devices, and S800 I/O systems. Its DIN-rail mount design, typical 85.8 mm width, and integrated lithium-ion battery make it suitable for compact controller cabinets where space optimization is essential.

This battery unit plays a critical role in automation system reliability by maintaining consistent power without adding bulk or complexity. It connects easily via a 24 V DC connector and cable (TK821V020), enabling quick installation and replacement. It’s carefully designed to complement ABB’s system architecture, ensuring compatibility and easy integration into infrastructure requiring dependable backup power.

Key Technical Features & Functional Benefits

The ABB SB822 offers notable advantages combining advanced lithium-ion battery technology with compact mechanical design. The lithium-ion chemistry provides a high energy density that results in longer backup durations and reduced need for frequent replacements compared to traditional battery types. With a nominal voltage of 3.6 V and 0.05 A output capability, it safely powers controllers and associated modules during unexpected power loss.

Its rugged IP20-rated enclosure protects internal components against dust and environmental contaminants while maintaining cooling efficiency inside control panels. The unit is rated to operate reliably in ambient temperatures up to 60°C, covering a wide industrial temperature range.

Installation is simplified with DIN-rail mounting and the included 24 V DC connector and cable, ensuring firm connections and mechanical stability. Additionally, the SB822 supports effective maintenance management through advanced diagnostics and defect clearing functions, including internal work log recording and remote monitoring capabilities via a built-in web server (where system architecture supports it).

ABB’s strict compliance with international standards such as CE marking and RoHS directives underlines the unit’s design quality and safety. Its lightweight form (approximately 550g) and small footprint make it an accessible option for engineers looking to maintain uninterrupted controller operation while conserving cabinet space.

Detailed Technical Specifications

Related Modules or Compatible Units

ABB AC 800M Controller – Primary controller unit powered and backed-up by the SB822 battery.
ABB S800 I/O Modules – I/O devices dependent on battery backup for continuous operation.
ABB TK821V020 – Connection cable enabling secure power supply from SB822 to controllers.
ABB SB821 – Predecessor battery backup model with slightly lower capacity.
ABB SD834 – Complementary power supply module used in conjunction with SB822 for system 24V supply.
ABB CI854A – Communication interface commonly powered by the SB822 backup battery.
ABB PM865 – Processor module in AC 800M system often configured alongside SB822 for power redundancy.

Installation Notes & Maintenance Best Practices

When installing the ABB SB822, ensure it is mounted on a standard DIN rail within an organized control cabinet free from excessive vibration or moisture. Adequate airflow should be maintained around the unit to prevent heat accumulation, especially in compact installations. Proper electrical grounding is essential for noise immunity and compliance with safety standards governing automation controls.

Maintenance routines should include periodic battery health checks via system diagnostics, visual inspection of connector integrity, and ensuring firmware or software version compatibility to maximize backup performance. The battery’s service life expectancy is approximately three years or up to 400 full discharge cycles, so suitable replacement planning is recommended to avoid unexpected end-of-life failures. The unit’s monitoring features enable predictive maintenance to minimize downtime.