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Blue Sea Systems
Blue Sea Systems ML-ACR Automatic Charging Relay
Item: #862682 | Part Number: Not Selected$216.99 - $249.99
Description
The Blue Sea Systems ML-ACR Automatic Charging Relay intelligently manages dual battery banks by automatically combining them during charging and isolating them when discharging or starting. With a robust 500A continuous rating, magnetic latching design, and advanced isolation features, it ensures reliable charging, protects sensitive electronics, and provides emergency start support with minimal power draw.
Blue Sea Systems ML-ACR Automatic Charging Relay Item # 862682
Description
500A magnetic latching (bi-stable) relay automatically combines batteries during charging and isolates batteries when discharging and when starting engine.
Features:
- 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 or Deutsch DTM / Amphenol ATM
- Nominal Voltage: 12 or 24V 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
- Cable Size to Meet Ratings: 4/0 AWG x 2
- Live Current Switching: 300A @ 12V DC
- Switching Cycles: 100000
- Terminal Ring Diameter Clearance: 1.18" (29.97 mm)
- Terminal Stud Length: 1.50" (38.1 mm)
- Terminal Stud Size: 3/8" - 16 (M10)