Bluewater 12V 140A Automatic Charging Relay (ACR)

The Bluewater 12V 140A Automatic Charging Relay (ACR) provides efficient battery management for dual-battery systems by automatically connecting batteries during the charging process and isolating them when voltage drops. This relay is built for marine and RV applications with an IP67 waterproof rating and ignition protection.

Key Features:

• Automatic battery management: Connects batteries when charging and isolates them when voltage drops.
• Start Isolation: Protects sensitive electronics during engine cranking by temporarily disconnecting house loads, signaled by a slow-flashing yellow LED.
• Dual-color LED status indicators: Shows Fault, Charging, Discharging, Combine, Start Isolation, and Override modes.
• Under Voltage Lockout: Prevents relay closure if battery voltage is too low (9.5V for 12V systems; 19V for 24V systems).
• High-output compatible: Supports alternators up to 120A.
• Robust construction: IP67 waterproof and ignition protected.

Specifications:

• Continuous Rating: 120 Amps
• Intermittent Rating: 140 Amps
• Maximum Voltage: 48V DC
• Maximum Cable Size: 4/0 AWG
• Manufacturer Part Number: 9800-7101-00
• UPC/EAN: 810196331235

This unit is suitable for a variety of watercraft and mobile power setups, including boats with starter and house battery configurations, sailboats, and fishing boats with trolling motor and accessory batteries.