Description
Blue Sea 7622 ML-Series ACR | Boat Supply Store
Efficiently manage complex dual-battery systems on offshore fishing vessels or yachts with the Blue Sea 7622 ML-Series Heavy Duty Automatic Charging Relay. This unit provides a robust 500 Ampere continuous rating and a low-current Magnetic Latch operation to prevent unnecessary battery drain. It intelligently senses charging on two battery banks, offering advanced Start Isolation (SI) and Engine Isolation (EI) modes to protect sensitive electronics and ensure reliable engine starting.
Key Features
- Manual control for added safety with 'Locked Off' capability.
- Integrated remote control switch (PN 2146) for convenient operation.
- High continuous rating of 500 Amperes for demanding applications.
- Low-current Magnetic Latch (ML)-ACR minimizes power consumption.
- Start Isolation (SI) protects house loads during engine cranking.
- Engine Isolation (EI) prevents cross-charging between engines.
- Dual battery bank sensing for optimal charging.
- LED status indicators provide real-time system feedback.
Specifications
| Product Specifications | |
|---|---|
| Continuous Rating | 500 Ampere |
| Coil Voltage | 12v |
| Manual Control | Yes ('Locked Off' capability) |
| Included Remote Control Switch | Yes (ML-Series Remote Control Contura Switch PN 2146) |
| Start Isolation (SI) | Yes |
| Engine Isolation (EI) | Yes |
| Senses Charging | Two battery banks |
| LED Status Indicators | Yes |
| Stud Size | 3/8"-16 |
| Stud Material | Tin-plated copper |
| Stud Length | 7/8" (22mm) |
| Alternator Support | Up to 500 Amps |
Who This Is For
Boaters requiring sophisticated dual-battery management for high-output alternators or vessels with critical electronics that demand isolation. Ideal for marine technicians and owners of larger recreational or commercial craft needing enhanced battery protection and control.
How It Compares
| Feature | Blue Sea 7622 ML-Series ACR | Separate Switch Required |
|---|---|---|
| Continuous Rating | 500 Amps | 400A, 600A |
| Manual Control | Yes (Integrated) | No (Optional Remote Switch), Yes |
| Engine Isolation | Yes | No, No |
| Included Remote Switch | Yes (PN 2146) | No, No |
| Coil Voltage | 12V | 12/24V, 12VDC |
Common Concerns Answered
Is the Blue Sea 7622 difficult to set up?
While the advanced isolation modes may require a good understanding of marine electrical systems, the unit is designed for robust performance. Refer to the installation manual for detailed guidance to ensure proper integration.
Is this relay more expensive than simpler options?
The Blue Sea 7622 offers a comprehensive feature set, including manual override, sophisticated isolation modes, and a high 500 Amp rating, justifying its position in a higher price tier compared to basic isolators.
Can this handle high-output alternators?
Absolutely. The Blue Sea 7622 is engineered to support high-output alternators up to 500 Amps, making it suitable for modern vessels with significant charging demands.
Frequently Asked Questions
What is the continuous rating of the Blue Sea 7622 ML-Series Heavy Duty Automatic Charging Relay?
The continuous rating of the Blue Sea 7622 is 500 Amperes.
Can the Blue Sea 7622 be manually controlled?
Yes, the Blue Sea 7622 features manual control with a 'Locked Off' capability for added safety and control.
What is the coil voltage of the Blue Sea 7622?
The coil voltage for the Blue Sea 7622 is 12V.
What are the different isolation modes available on the Blue Sea 7622?
The Blue Sea 7622 supports Start Isolation (SI) for isolating house loads during engine cranking and Engine Isolation (EI) for isolating two engines while both are running.
Does the Blue Sea 7622 include a remote control switch?
Yes, the Blue Sea 7622 includes the ML-Series Remote Control Contura Switch PN 2146.
