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Blue Sea Systems, 7620, ML-ACR Automatic Charging Relay - 12V DC 500A

  • Model: 7620
  • GTIN: 00632085076207
  • Manufactured by: Blue Sea Systems
  • Condition: New
  • Estimated Delivery: 1 to 2 Weeks
  • Lead Time To Ship May Vary

$329.93 $253.79

Manufacturer Info

500 Amp magnetic latching (bi-stable) relay automaticallycombines batteries during charging and isolates batterieswhen discharging and when starting engine

  • Includes ML-Series Remote Control Contura Switch PN 2146
  • 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 sensing senses 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
  • Instructions
  • ML-ACR Troubleshooting Guide
Control Circuit ConnectionTinned Wire
Nominal Voltage12V DC
Manual ControlNo
Engine IsolationYes
Start AssistYes
Start IsolationYes
Amperage Operating Current13mA
Amperage Operating Current when changing state<7.0A
Terminal Stud Torque140 in-lb (15.82 Nm)
Continuous Rating500A
Intermittent Rating700A (5 min)
Cranking Rating 30 sec1450A DC
Cable Size to Meet Ratings4/0 AWG x 2
Live Current Switching300A @ 12V DC
Switching Cycles100000
Terminal Ring Diameter Clearance1.12in (28.45 mm)
Terminal Stud Length1.50in (38.1 mm)
Terminal Stud Size3/8" - 16 (M10)
Wire Size20 AWG
Relay Contact Position
Combine 30 sec13.5V
Combine 90 sec13.0V
Open 10 sec12.35V
Open 30 sec12.75V
Open High16.2V
Weight2.04lb (0.93 kg)
12146SPDT Remote Control Contura Switch - ON-OFF-ON
Optional Accessories
9160ML Series Link Bus
1147Remote Control Panel

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