Blue Sea Systems 7623100 ML ACR Charging Relay 24V 500A with Manual Control and Deutsch Connector

7623100 ML ACR Charging Relay 24V 500A with Manual Control Deutsch Connector

500 Amp magnetic latching (bi-stable) relay automatically combines batteries during charging and isolates batteries when discharging and when starting engine.

Features:

• Manual control switch provides an added level of safety allowing control with or without power, and offering LOCK OFF capability for servicing
• Automatically manages the charging of two large battery banks
• Allows paralleling of battery banks for emergency starting
• 500 Ampere continuous rating to support high-output alternators
• Magnetic Latch (ML)ACR draws very low current (<40mA to monitor terminal voltage) in the "ON" or "OFF" states, and draws moderate current for very short time when changing state
• Dual sensingsenses charge on both battery banks
• 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
• LED output to remotely indicate when batteries are combined, isolated, in voltage lockout, or 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
• Silver alloy contacts provide high reliability for switching live loads
• Label recesses for circuit identification

Specifications:

• Control Circuit Connection: Deutsch DTM
• Nominal Voltage: 24VDC
• Manual Control: Yes
• Engine Isolation: Yes
• Mounting: #10
• Start Assist: Yes
• Start Isolation: Yes
• Amperage Operating Current: 13mA
• Amperage Operating Current When Changing State: <7.0A
• Terminal Stud Torque: 140 in-lb (15.82 Nm)
• Continuous Rating: 500A
• Intermittent Rating: 700A (5 min)
• Cranking Rating 30 Seconds: 1450A DC
• Cable Size to Meet Ratings: 2x (4/0)
• Live Current Switching: 300A@12VDC
• Switching Cycles: 100,000
• Terminal Ring Diameter Clearance: 1.18" (29.97 mm)
• Terminal Stud Length: 0.875" (22.23 mm)
• Terminal Stud Size: 3/8" - 16 (M10)

The Blue Sea Systems 7623100 ML Automatic Charging Relay (ACR) is a high-capacity 24VDC device designed to efficiently manage dual battery banks in demanding vehicle and marine applications. With a continuous current rating of 500 amps and a peak cranking capacity of 1450 amps for 30 seconds, this relay provides reliable power switching for high-output alternators and large battery systems. Its magnetic latching (bi-stable) design ensures low power consumption, drawing less than 40 milliamps during monitoring, and offers rapid switching between states with minimal current draw. The relay seamlessly combines batteries during charging, isolates them during discharging, and supports paralleling for emergency starting, making it a versatile solution for complex electrical systems.
The relay features a manual control switch, enabling safe operation during maintenance or troubleshooting by allowing control with or without power and providing a lock-off option. Its dual sensing capability monitors both battery banks, ensuring accurate charge management and system protection. Multiple configuration options include Start Isolation (SI) to temporarily disconnect house loads during engine cranking and Engine Isolation (EI) to protect electronic systems when multiple engines are running. An LED indicator provides remote status updates, including battery connection, isolation, voltage lockout, and engine start or run states. Heavy-duty 3/8-inch tin-plated copper studs deliver excellent conductivity and corrosion resistance, accommodating multiple cable terminals for robust connections. The relay’s silver alloy contacts ensure high reliability while switching live loads. Installation is straightforward with mounting provisions for #10 hardware and recessed labels for circuit identification. Designed to meet demanding power switching needs, the Blue Sea 7623100 ML ACR is an essential component for advanced battery management systems in marine, RV, and commercial vehicles, providing peace of mind with its durability, flexibility, and high performance.

Features:

• Manual control switch for enhanced safety, allowing operation with or without power and lock-off for servicing

• Automatically manages charging of two large battery banks for optimal power distribution

• Enables paralleling of batteries for emergency starting, ensuring reliable engine ignition

• Supports continuous operation at 500 amps with a peak rating of 700 amps for 5 minutes

• Magnetic latch design consumes very low current in both 'ON' and 'OFF' states, reducing power draw

• Dual sensing capability for accurate voltage monitoring across both battery banks

• Configurable Start Isolation to protect sensitive electronics during engine cranking

• Engine Isolation feature to protect engine electronics and maximize alternator output during multi-engine operation

• LED indicators for remote status monitoring including battery connection, isolation, and voltage lockout

• Heavy-duty 3/8-inch tin-plated copper studs for maximum conductivity and corrosion resistance

• Silver alloy contacts ensure high reliability for switching live loads

• Recessed labels facilitate easy circuit identification for installation and maintenance