Description
BEP Heavy Duty Battery Switch 721 | Boat Supply Store
For boaters needing to manage two batteries independently, this BEP Marine selector switch provides a direct and economical solution. It facilitates the isolation of battery banks, crucial for preventing discharge during extended periods or ensuring a dedicated start battery. With a substantial 350A continuous rating and support for up to 48V DC, this switch is engineered for demanding marine environments, offering reliability in complex electrical configurations without the cost of advanced systems.
Key Features
- Heavy-duty construction for marine resilience
- Economical method to isolate two batteries
- Removable selector plates for customized configuration
- Removable back cover for simplified wiring access
- 350A continuous amperage rating supports high-demand loads
- 500A intermittent rating handles brief, high-draw events
- 1500A cranking rating ensures reliable engine starts
- 48V DC voltage compatibility for modern systems
Specifications
| Product Specifications | |
|---|---|
| DC Voltage | 48V |
| Stud Size | 3 x 3/8" (Imperial) / 2 x 10mm (Metric) |
| Continuous Rating | 350A |
| Intermittent Rating | 500A |
| Cranking Rating | 1500A |
Who This Is For
Boat owners seeking a straightforward and cost-effective method to manage two batteries, ideal for smaller to medium vessels where space and budget are key considerations. This switch is suitable for those requiring basic battery isolation without the complexity of advanced battery management systems.
How It Compares
| Feature | BEP Heavy Duty Battery Switch 721 | Blue Sea Systems m |
|---|---|---|
| Continuous Rating | 350A | 310A, 350A |
| Cranking Rating | 1500A | 1100A, 1500A |
| DC Voltage | 48V | 32V, 48V |
| Stud Size (Imperial) | 3 x 3/8" | 3/8"-16, 3/8"-16 |
| Removable Plates | Yes | No, Not Specified |
Common Concerns Answered
Does this switch protect electronics from engine starting spikes?
This BEP Heavy Duty Battery Selector Switch 721 is designed for battery isolation and does not inherently protect sensitive electronics from electrical surges generated during engine starting. For comprehensive electronic protection, an additional surge protection device or dedicated battery circuit is recommended.
Will I need special connectors for the battery studs?
The switch utilizes 3/8" (Imperial) or 10mm (Metric) studs, which are standard sizes in marine applications. Ensure your battery cables are terminated with compatible ring terminals for a secure and reliable connection. You may need to verify the exact terminal size required for your specific battery cables.
Is this switch suitable for larger offshore vessels?
While robust, this switch is best suited for smaller to medium-sized vessels or as a secondary isolation switch. For vessels with extensive electrical systems and higher continuous loads, consider BEP Marine's more advanced dual-circuit or digital battery management systems.
Frequently Asked Questions
What is the continuous rating of the BEP Heavy Duty Battery Selector Switch 721?
The BEP Heavy Duty Battery Selector Switch 721 has a continuous rating of 350A.
What is the cranking rating of the BEP Heavy Duty Battery Selector Switch 721?
The BEP Heavy Duty Battery Selector Switch 721 has a cranking rating of 1500A.
Can the BEP Heavy Duty Battery Selector Switch 721 separate electronics from engine starting spikes?
No, this switch is designed for battery isolation and does not offer protection against engine starting electrical spikes. Separate surge protection may be required for sensitive electronics.
What is the DC voltage rating for the BEP Heavy Duty Battery Selector Switch 721?
The BEP Heavy Duty Battery Selector Switch 721 is rated for up to 48V DC.
What are the stud sizes for the BEP Heavy Duty Battery Selector Switch 721?
The BEP Heavy Duty Battery Selector Switch 721 features 3 x 3/8" Imperial studs and 2 x 10mm Metric studs.
