Blue Sea Systems 7623 ML-Series Heavy Duty Automatic Charging Relay 24V

• Manual control switch provides an added level of safety allowing control with or without power, and offering "Locked Off" capability for servicing
  
• Includes ML-Series Remote Control Contura Switch PN 2146
  
• 500 Ampere continuous rating
  
• Magnetic Latch (ML)-ACR draws very low current (<10 mA to monitor terminal voltage) in the "ON" or "OFF" states, and draws moderate current for very short time when changing state
  
• 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
  
• Senses charging on two battery banks
  
• Supports high-output alternators up to 500 Amps
  
• LED output to remotely indicate when batteries are combined, isolated, in voltage lockout, in Start or Engine isolation
  
• 3/8"-16 tin-plated copper studs for maximum conductivity and corrosion resistance
  
• 7/8" (22mm) stud length accepts multiple cable terminals
  
• Label recesses for circuit protection
  
• Silver alloy contacts provide high reliability for switching live loads

WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

The Blue Sea Systems 7623 ML-Series Heavy Duty Automatic Charging Relay is designed for reliable battery management in demanding marine and vehicle applications. This relay features a manual control switch that provides added safety by allowing control with or without power, including a "Locked Off" position for servicing. It includes the ML-Series Remote Control Contura Switch PN 2146 for seamless operation. With a continuous rating of 500 Amps, it handles high-current loads efficiently, making it suitable for large battery banks and high-output alternators.
Constructed with magnetic latch (ML) technology, this relay draws very low current—less than 10 mA to monitor terminal voltage—and only moderate current during state changes, reducing power consumption and heat. It supports various configurations such as Start Isolation (SI) for protecting sensitive electronics during engine cranking, and Engine Isolation (EI) for isolating two engines while both are running to maximize alternator output and safeguard engine electronics. The relay also senses charging on two separate battery banks, providing flexible and intelligent battery management.
Equipped with LED indicators, the relay remotely signals when batteries are combined, isolated, in voltage lockout, or in start or engine isolation modes. Its 3/8"-16 tin-plated copper studs ensure maximum conductivity and corrosion resistance, while the 7/8" (22mm) stud length accommodates multiple cable terminals for versatile wiring. Additional features include label recesses for circuit protection and silver alloy contacts that deliver high reliability for switching live loads. This relay is ideal for high-performance applications requiring robust and safe battery management in marine, RV, or industrial environments.
For detailed installation and operation instructions, refer to the owners manual available online. This product is engineered to enhance system reliability and safety, making it an essential component for complex electrical systems requiring precise battery control and protection.

Features:

• Manual control switch offering safety and servicing lockout

• Includes ML-Series Remote Control Contura Switch PN 2146

• Handles continuous currents up to 500 Amps

• Magnetic latch (ML) technology with low current draw in active states

• Supports Start and Engine Isolation configurations

• Senses charging on two battery banks for intelligent management

• Supports high-output alternators up to 500 Amps

• LED indicators for remote status monitoring

• Heavy-duty 3/8"-16 tin-plated copper studs for superior conductivity

• Stud length designed to accept multiple cable terminals

• Label recesses for circuit protection

• Silver alloy contacts ensure high reliability for live load switching