Blue Sea - ML-ACR Automatic Charging Relay - 12V DC 500A - PN. 7620

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MPN 7620

Delivery Information

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Description
Specification

Description

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

Part No. 7620

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

Specifications:
Control Circuit Connection - Tinned Wire
Nominal Voltage - 12V DC
Manual Control - No
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 sec - 1450A DC
Minimum Operating Temperature - -10° C
Maximum Operating Temperature - 60° C
Cable Size to Meet Ratings - 4/0 AWG x 2
Live Current Switching - 300A @ 12V DC
Stud Material - Tinned Copper
Switching Cycles - 100000
Terminal Ring Diameter Clearance - 1.12in (28.45 mm)
Terminal Stud Length - 1.50in (38.1 mm)
Terminal Stud Size - 3/8" - 16 (M10)
Wire Size - 20 AWG
Relay Contact Position -
Combine 30 sec - 13.5V
Combine 90 sec - 13.0V
Open 10 sec - 12.35V
Open 30 sec - 12.75V
Open High - 16.2V
Weight - 2.04lb (0.93 kg)