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Blue Sea 7620 - ML-ACR Automatic Charging Relay, 12V DC 500A
The Blue Sea 7620 - ML-ACR Automatic Charging Relay is a highly efficient 500 Amp magnetic latching relay designed for managing the charging of large battery banks. This powerful relay automatically combines batteries during charging and isolates them when discharging or starting the engine. The ML-ACR ensures reliable protection and control of two battery banks, with the ability to parallel them for emergency starting and manage battery isolation during engine cranking. With its low current draw in the "ON" or "OFF" states and moderate current draw when changing state, the relay offers a highly energy-efficient solution for marine electrical systems.
Featuring a dual-sensing system, the Blue Sea 7620 monitors the charge on both battery banks, ensuring proper operation and safe management. The relay is equipped with LED indicators that show the status of the batteries, such as when they are combined, isolated, in voltage lockout, or in Start or Engine isolation modes. It offers an advanced level of protection for engine electronics, including Start Isolation and Engine Isolation modes, and ensures optimal performance even in harsh marine environments. Additionally, its robust tinned copper studs, silver alloy contacts, and high torque capability ensure reliable and long-lasting connections in demanding applications.
- Nominal Voltage: 12V DC
- Continuous Rating: 500A
- Intermittent Rating: 700A (5 min)
- Cranking Rating: 1450A DC
- Start Isolation and Engine Isolation: Yes
- Amperage Operating Current: 13mA
- Terminal Stud Size: 3/8" - 16 (M10)
- Live Current Switching: 300A @ 12V DC
- Maximum Operating Temperature: 60°C
- Weight: 2.04lb (0.93 kg)
- Stud Material: Tinned Copper
- Mounting: #10
- LED output for battery status
- Switching Cycles: 100000
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