Introduction
When unexpected power interruptions threaten critical industrial processes, the ABB SB822 rechargeable battery unit provides a reliable solution. Designed specifically for AC 800M controllers, this external DIN-rail mounted unit ensures continuous operation during short outages, safeguarding data integrity and system uptime. With a compact footprint and simple installation, the SB822 integrates seamlessly into existing control cabinets.
Technical Specifications Breakdown
The SB822 delivers a rated output voltage of 3.6 V, sufficient to maintain controller memory and real-time clock functions during power loss. Its maximum output current of 0.05 A supports the low-power standby requirements of AC 800M systems. The unit operates reliably in ambient temperatures up to 60 °C, making it suitable for demanding industrial environments. Protection rating IP20 according to IEC 60529 guards against solid objects larger than 12 mm, while compliance with ISA-S71.04 G2 ensures resistance to corrosive atmospheres. The pollution degree is Degree 2 per IEC 60664-1, and mechanical operating conditions follow IEC 61131-2. The included lithium-ion battery contains an equivalent lithium metal amount of 0.8 g (0.03 oz). Dimensions are 85.8 mm width, 58.5 mm depth, and 136 mm height including hatch, with a weight of 550 g (01.21 lbs.).
Industry Applications
The SB822 excels in process industries such as chemical, oil and gas, and power generation where AC 800M controllers manage critical loops. In a refinery, for example, a brief power dip could cause a distributed control system to lose volatile memory, leading to costly restart procedures. The SB822 prevents this by maintaining backup power long enough for an orderly shutdown or generator takeover. Its DIN-rail mounting simplifies retrofitting into existing panels without major rewiring.
Installation & Setup Guidance
Mount the SB822 on a standard DIN rail inside the control cabinet. Connect the 24V DC connector to a suitable power source, and use the included connection cable TK821V020 to link the unit to the AC 800M controller. Ensure the ambient temperature remains below 60 °C and that the enclosure provides adequate ventilation. Verify that the IP20 rating is sufficient for the installation environment; avoid locations with high dust or moisture levels. No special tools are required for installation.
Maintenance & Reliability
Periodically inspect the SB822 for signs of physical damage or corrosion, especially in environments with corrosive atmospheres as defined by ISA-S71.04 G2. The lithium-ion battery has a finite service life; replace the unit when backup duration no longer meets system requirements. Keep the DIN-rail mounting secure and check that all connectors are tight. Following these simple steps maximizes reliability and extends the useful life of the battery unit.
Compatibility & Integration
The SB822 is specifically designed for use with ABB AC 800M controllers. It connects via the TK821V020 cable and requires a 24V DC supply. The unit is CE marked and complies with RoHS (DIRECTIVE/2011/65/EU) and WEEE (DIRECTIVE/2012/19/EU) directives, ensuring environmental compliance. Integration is straightforward: mount, connect, and configure the controller to recognize the backup source.
Selection Guide & Purchasing Advice
Before purchasing the SB822, verify that your system uses an AC 800M controller and that the cabinet has available DIN-rail space (85.8 mm width required). Confirm that the 24V DC supply is present and that the ambient temperature does not exceed 60 °C. The SB822 is available from SpareTechPLC, a trusted supplier of industrial automation parts. Contact their team to confirm current lifecycle status and availability before ordering.
Frequently Asked Questions
What is the rated output voltage of the ABB SB822?
The SB822 provides a rated output voltage of 3.6 V DC.
What is the maximum ambient temperature for operation?
The unit operates safely at ambient temperatures up to 60 °C.
Does the SB822 include a connection cable?
Yes, it includes the TK821V020 connection cable for linking to the AC 800M controller.
What is the protection rating of the SB822?
The protection rating is IP20 according to IEC 60529.
How much lithium metal is in the battery?
The equivalent amount of lithium metal is 0.8 g (0.03 oz).
