Blue Sea Systems 7622 ML Series Automatic Charging Relay, 12V w/Manual Override
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
500 Amp magnetic latching (bi-stable) relay automatically combines batteries during charging and isolates batteries when discharging and when starting engine. Start Isolation (SI) can be configured for temporary isolation of House loads from Engine circuit during engine cranking to protect sensitive electronics. Engine Isolation (EI) can be configured for isolation of two engines while both are running to protect engine electronics and maximize alternator output. Manual override knob provides an added level of safety allowing control with or without power and offering LOCKED OFF capability for servicing.
- Magnetic Latching (ML) relay draws very low current in the ON state
- Senses charging on two battery banks
- LED output to remotely indicate switch state
- 3/8"-16 tin-plated copper studs for maximum conductivity and corrosion resistance
- 7/8" stud length accepts multiple cable terminals
- One-piece stainless flange nuts ensure safe and secure connections
- Label recesses for circuit identification
- Silver alloy contacts provide high reliability for live switching
- Includes Remote Control Contura Switch (2146)
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.