There are still some products that have not been listed yet. For more information, please contact us. If the product model does not match the displayed picture, the actual model shall prevail. Please consult us for specific product images; We will arrange for the warehouse to take photos for confirmation. We have 76 shared warehouses worldwide, so it may take several hours to accurately respond to your message. We deeply apologize for any inconvenience caused to you. Of course, we will process your inquiry as soon as possible.

The ABB SB822 is a high-reliability Rechargeable External Battery Unit designed specifically for AC 800M controller memory backup applications. As a critical component in ABB's industrial automation systems, the SB822 provides extended memory preservation using advanced Lithium-Ion battery technology, ensuring continuous protection of critical application data and real-time clock information during power outages .

The ABB SB822 serves as an external DIN-rail mounted backup power solution for AC 800M processor units (PM851/PM856/PM860/PM861/PM864/PM865/PM866/PM891), offering significantly longer backup times compared to internal batteries while eliminating the need for frequent battery replacements. The SB822 is essential for maintaining system availability and preventing data loss in distributed control systems (DCS) and industrial automation applications 

Model Number SB822 (3BSE018172R1)

Product Type Rechargeable External Battery Unit

Battery Chemistry Lithium-Ion (Li-Ion)

Battery Voltage 3.75 V DC

Battery Capacity 2.3 Ah / 2.4 Ah

Nominal Output Voltage 3.6 V DC

Maximum Output Current 0.05 A

Charging Voltage 27.2 V ±1% (from 24V DC supply)

Charging Time Approximately 7 hours for full charge

Operating Temperature 0°C to +55°C (standard) / -25°C to +70°C (storage)

Maximum Ambient Temperature 60°C

Dimensions 85.8 × 58.5 × 136 mm (W × D × H)

Weight 550 g (1.21 lbs)

Lithium Content 0.8 g (0.03 oz) equivalent lithium metal

Mounting DIN rail (35mm standard)

Connection Cable TK821V020 (2m / 2.2 yd)

Power Input 24V DC connector

LED Indicators Green Power LED, Yellow Charge LED

The SB822 offers extensive functionality for AC 800M memory backup applications:

Rechargeable Lithium-Ion Technology: Advanced Li-Ion battery pack (3.75V, 2.3Ah) provides maintenance-free operation with automatic charging from 24V DC supply—no battery replacement needed under normal conditions

Extended Backup Times: Provides minimum 33 hours to 3 weeks of memory backup depending on CPU type, significantly exceeding internal battery capabilities

DIN-Rail Mounting: Simple 35mm DIN-rail installation allows flexible positioning in control cabinets away from processor unit heat sources

Intelligent Charging: Automatic charge management with green Power LED and yellow Charge LED status indication; trickle charge maintains full capacity

Parallel Operation Support: Can be used in redundant CPU configurations with one SB822 per processor unit

Environmental Safety: Sealed battery design with 0.8g lithium content complies with transportation and disposal regulations 

Configuration Steps

Initial Battery Connection: At delivery, the Li-Ion battery package is not connected internally. Follow the enclosed Data and Installation Sheet to properly connect the battery pack before first use

DIN-Rail Mounting: Mount the ABB SB822 at a suitable position on 35mm DIN-rail, ensuring adequate ventilation and accessibility

Power Connection: Connect 24V DC supply to the SB822 connector (X3) using enclosed power cable

Controller Preparation: Ensure AC 800M controller is powered and the Battery (B) LED on PM8xx processor is flashing, indicating memory backup function is activated

Cable Connection: Connect the SB822 to processor unit using TK821V020 cable (2m length). Plug one end into battery unit and other into external battery supply socket on PM8xx processor

Status Verification: Confirm green Power LED and yellow Charge LED on SB822 are illuminated, indicating proper operation

Daily Operation

Monitor SB822 status via front panel LEDs: Green Power LED (on when powered), Yellow Charge LED (on when charging)

Check AC 800M Battery (B) LED on processor unit—flashing indicates external battery is active and providing backup

Verify charging status during normal operation; charging completes automatically in ~7 hours from empty state 

Pre-Installation Requirements

Verify SB822 model (3BSE018172R1) matches AC 800M CPU type (PM851/PM856/PM860/PM861/PM864/PM865/PM866/PM891)

Ensure control cabinet maintains 0°C to +55°C ambient temperature

Prepare 35mm DIN-rail mounting location within 2m cable reach of processor unit

Remove internal battery from PM8xx processor when using SB822 to avoid parallel connection reducing backup time

Hardware Installation

Battery Pack Activation: Open SB822 unit and connect internal Li-Ion battery pack per installation sheet instructions

DIN-Rail Mounting: Snap SB822 onto 35mm standard DIN-rail ensuring secure retention

Power Wiring: Connect 24V DC supply to SB822 input connector observing correct polarity

Processor Connection: Route TK821V020 cable from SB822 to PM8xx external battery socket

Grounding: Ensure proper PE connection through DIN-rail mounting for EMC compliance

Pre-Energization Checks

Verify battery pack voltage (>3.6V for healthy Li-Ion cells)

Confirm 24V DC supply voltage present at SB822 input

Check TK821V020 cable integrity and connector seating

Ensure PM8xx processor Battery LED is flashing before connecting cable 

Initial Power-Up: Apply 24V DC to SB822 and verify green Power LED illuminates

Charging Cycle: Observe yellow Charge LED—should illuminate indicating active charging; allows ~7 hours for full charge from empty

Transfer Test: Simulate main power failure by disconnecting 24V supply to AC 800M; verify seamless transfer to SB822 backup with no processor restart

Backup Duration Test: Monitor system operation on SB822 backup for minimum specified duration (33 hours for PM891, 100+ hours for other CPUs)

Restoration Test: Reconnect main power and verify automatic return to normal mode with SB822 recharging

Routine Inspection (Quarterly)

Inspect ABB SB822 for dust accumulation; clean with dry compressed air if necessary

Verify both LED indicators function correctly: Green Power LED (steady), Yellow Charge LED (during charging)

Check cable connections for loosening or damage

Monitor charge cycle completion—LED should extinguish when fully charged

Annual Maintenance

Perform full discharge/charge cycle to maintain battery capacity

Verify backup duration meets specification (minimum 33 hours for PM891, 100+ hours for PM851/PM856/PM860)

Check TK821V020 cable for wear; replace if insulation damaged

Update AC 800M firmware if applicable

Long-Term Maintenance

Battery Replacement: Li-Ion battery pack requires replacement after approximately 400 charge cycles or 3 years of service life

Replacement Procedure:

Disconnect TK821V020 cable from processor

Disconnect 24V supply and remove SB822 from DIN-rail

Attach ESD wrist strap before opening unit

Disconnect old battery connector and remove package

Install new battery (3.75V 2.3Ah Li-Ion, 14.5×43×50mm, 0.8g lithium)

Reassemble and reinstall unit

Disposal: Dispose of worn Li-Ion battery at approved recycling facility per local environmental regulations

Condition Monitoring

The SB822 provides visual status indication:

Green Power LED: 24V supply present and unit operational

Yellow Charge LED: Battery actively charging (extinguishes when fully charged)

No LEDs: Check power supply and fuse

AC 800M Battery LED flashing: External backup active and functioning

Electrical Safety: SB822 operates at safe extra-low voltage (3.6V/24V) but contains Li-Ion cells capable of high short-circuit currents. Avoid metal objects across terminals

ESD Protection: Always wear properly grounded ESD wrist strap when handling internal battery components

EMC Compliance: Meets EMC Directive 89/336/EEC and 2004/108/EEC for European installations

Thermal Management: Ensure 0°C to +55°C operating temperature; charging efficiency reduced outside this range

Transportation: Contains 0.8g equivalent lithium metal—complies with IATA/UN transportation regulations for Li-Ion batteries 

SB822 3BSE018172R1 Standard rechargeable Li-Ion battery unit for AC 800M (3.75V 2.3Ah)

SB821 Non-rechargeable external battery (3.6V 16Ah Lithium) for longer backup without charging capability

SB511 3BSE002348R1 Legacy backup power supply for Advant Controller 450 systems

PM851/PM856/PM860 AC 800M CPUs with 100+ hours SB822 backup time

PM861/PM864 AC 800M CPUs with 85-285 hours SB822 backup time

PM865/PM866 High-performance AC 800M CPUs with 3 weeks SB822 backup

PM891 Latest AC 800M CPU—SB822 is only external battery option (33 hours backup)

TK821V020 2m connection cable for SB822 to PM8xx processor

TP830 Baseplate for PM8xx processors with SB822 connection socket 

Do you provide global shipping services?

Yes. We have local distribution centers on all continents, which can quickly transport parts to any corner of the world.

2. What payment methods and currencies do you accept?

To make your purchasing process as simple as possible, we offer multiple payment methods including bank transfer, check, and PayPal. Meanwhile, we also accept most mainstream credit and debit cards, such as Visa, Mastercard, and American Express. We can accept payments in most major currencies worldwide, but we recommend using US dollars (USD), British pounds (GBP), or euros (EUR) as a priority. Payments in other currencies may incur additional fees. All transactions are securely processed by HSBC Bank and HSBC Merchant Services.

How many parts do you currently have in stock?

We have a vast inventory of thousands of new, refurbished, and outdated automation components, including products from well-known manufacturers such as ABB and Schneider. If you cannot find the required parts, please do not worry. We work closely with a global network of professional suppliers to provide you with tailored quotes even if the part is not listed on our website.

Who can I contact if I encounter any problems?

Our experienced customer service team will handle any issues after you place your order.