Blue Sea Systems 7622100 ML ACR Charging Relay 12V 500A with Manual Control and Deutsch Connector

7622100 ML ACR Charging Relay 12V 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: 12VDC
• 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)

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 7622100 ML ACR Charging Relay is a high-capacity 12VDC device designed to efficiently manage dual battery banks in automotive, marine, or RV applications. With a continuous rating of 500 amps and intermittent capability up to 700 amps for 5 minutes, this relay is suitable for high-output alternators and demanding electrical systems. Its magnetic latching (bi-stable) design ensures low power consumption, drawing less than 40mA in either the ON or OFF state, and provides reliable switching with silver alloy contacts for long-lasting performance.
The relay features a manual control switch that allows for safe operation and servicing, offering LOCK OFF capability without power, enhancing safety during maintenance. It automatically combines batteries during charging, isolates batteries when discharging or starting the engine, and supports paralleling of battery banks for emergency starting. Dual sensing circuits monitor both batteries, ensuring balanced charging and efficient system management.
Additional functionalities include configurable start and engine isolation, which can temporarily disconnect house loads during engine cranking and isolate engines during concurrent operation to protect sensitive electronics and optimize alternator output. A remote LED indicator provides real-time status updates, including battery connection, isolation, voltage lockout, and start or engine isolation conditions.
Designed for durability and conductivity, the relay incorporates 3/8"-16 tin-plated copper studs with a stud length of approximately 7/8" (22mm), accommodating multiple cable terminals and resisting corrosion. The relay's robust construction supports over 100,000 switching cycles, making it suitable for demanding electrical environments. Installation is straightforward with #10 mounting points, and terminal torque specifications ensure secure connections. The relay’s control circuit uses Deutsch DTM connectors for reliable wiring.
This versatile relay also includes features such as start assist, engine isolation, and circuit labeling for easy identification. With a compact footprint, it is ideal for applications requiring high current switching with minimal power draw, ensuring efficient and safe operation of dual battery systems in various vehicles and boats.

Features:

• Manual control switch for safety and servicing with LOCK OFF capability

• Automatically manages charging of two large battery banks

• Supports paralleling of battery banks for emergency starting

• 500 Amp continuous rating suitable for high-output alternators

• Magnetic latch (ML) design draws very low current in ON or OFF states

• Dual sensing for balanced charging and system monitoring

• Configurable start and engine isolation to protect electronics

• LED indicator for remote status monitoring

• Durable 3/8"-16 tin-plated copper studs for maximum conductivity

• Silver alloy contacts for reliable switching of live loads

• Designed for over 100,000 switching cycles

• Deutsch DTM control circuit connection for secure wiring

• Compact and robust construction suitable for demanding environments