
Product Description
Product Overview
| Parameter | Details |
|---|---|
| Part Number | SB821 / 3BSE018109R1 |
| Product Name | SB821 Battery Unit |
| Application | Provides long backup power for ABB S800 I/O systems and CPUs in industrial control environments |
| Compatibility | Compatible with ABB Advant Master and S800 I/O systems; use one per CPU |
| Function | External DIN-rail mounted unit for extended backup (minimum 1 month), includes battery and connection cable |
Functional Specifications
| Parameter | Details |
|---|---|
| Battery Type | 3.6 V Lithium battery (included) |
| Voltage | 3.6 V DC |
| Backup Time | Minimum 1 month (up to 10 years maintenance-free operation) |
| Operating Temperature | 0°C to 55°C (32°F to 131°F) |
| Storage Temperature | -40°C to +85°C (-40°F to +185°F) |
| Dimensions | 85 mm width x 234 mm x 54 mm x 90 mm (DIN-rail mount) |
| Weight | 270 g / 0.315 kg |
| Mounting | DIN-rail mountable in control cabinet |
| Connection | Includes TK821V020 connection cable |
| Certifications | Class 1 Div 2 Groups A,B,C,D T5; Class 1 Zone 2 AEx nC IIC T5; Ex nC IIC; CE marked; RoHS compliant |
| Protection | Overcharge, over-discharge, and short-circuit protection |
| Standards Compliance | Suitable for industrial control systems; API 670 compliant for related machinery protection |
Ordering Information
| Parameter | Details |
|---|---|
| Part Number Configuration | 3BSE018109R1 (SB821 Battery Unit with included battery and cable) |
| Available Options | Spare battery (4943013-2); compatible with various ABB S800 configurations |
| Customization | Battery capacity adjustments or additional approvals available upon request |