
Delivery in 10-20 daysWarranty 2 yearsREDARC
Shipping costsItaly: free over €150; €13 for smaller orders.
European Union: free from €350; €60 for smaller orders.
European Union: free from €350; €60 for smaller orders.
Redarc SBI224D Smart Start Dual Sensing Dual Battery Isolator 24V 200A
The Redarc Smart Start SBI224D is the heavy-duty dual sensing battery isolator for 24 V dual battery systems, rated at 200 A continuous. It isolates the starting and auxiliary batteries and protects the starting battery from over-discharge.
With dual sensing, an auxiliary battery charged by a solar panel or mains charger can also charge the starting battery. Built for 24 V trucks, work vehicles, large motorhomes and boats. Designed and manufactured in Australia.
Key features
200 A continuousHigh current capacity and 600 A surge for heavy-duty applications.
Bi-directional sensingConnects when either battery reaches 26.4 V.
Start battery protectionDisconnects at 25.4 V.
Silver alloy contactsLonger life and suitable for marine use.
Low power draw and diagnosticsStandby below 5 mA, fault indication and full surge protection.
Technical specifications
| Feature | Value |
|---|---|
| REDARC part number | SBI224D |
| System voltage | 24 V |
| Output voltage | 24 V DC |
| Sensing | Dual sensing |
| Max. continuous current | 200 A |
| Max. surge current | 600 A |
| Cut-in voltage | 26.4 V |
| Cut-out voltage | 25.4 V |
| Cut-in delay | 5 seconds |
| Cut-out delay | 10 seconds |
| Standby current | < 5 mA |
| Input fuse | 200 A |
| Output fuse | 200 A |
| Weight | 600 g |
| Dimensions (H × W × D) | 90 × 95 × 100 mm |
| Warranty | 2 years |