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Batterylink™ Automatic Charging Relay – 12v/24V DC 120A

$198.95

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BatteryLink™ ACR Relay 120A – 12V / 24V

The BatteryLink™ Automatic Charging Relay (ACR) is designed to automatically manage and distribute charging between your primary and auxiliary battery systems. Ideal for caravans, 4WDs, marine, and off-grid applications, it ensures both batteries are efficiently charged from a single power source.

This smart relay detects charging conditions and automatically connects or isolates battery banks, helping to protect your starter battery while maximising auxiliary battery usage.

Key Features

  • Automatic Charging Relay – Shares charge between start and auxiliary batteries
  • Dual Voltage Compatibility – Supports both 12V and 24V DC systems
  • 120A Continuous Rating – Handles high-current charging applications
  • 210A Intermittent Rating – Supports short bursts up to 5 minutes
  • Smart Voltage Detection – Automatically combines and isolates batteries
  • Durable Design – Clip-on insulating cover and flexible cable entry points
  • Integrated LED Indicator – Displays relay status
  • Auxiliary Battery Priority – Optional feature for extended auxiliary usage

Specifications

  • Nominal Voltage: 12V / 24V DC (auto-ranging)
  • Continuous Rating: 120 A
  • Intermittent Rating: 210 A (5 minutes)
  • Operating Current: 175 mA @ 12V (combine), 115 mA @ 24V (combine), 15 mA (open)
  • Maximum Cable Size: 1/0 AWG
  • Terminal Stud Size: 3/8″ (M10)
  • Maximum Torque: 15.82 Nm
  • Stud Length: 22 mm (7/8″)
  • Weight: 0.57 kg

Voltage Thresholds

  • Combine (30 sec): 13.6V (12V) / 27.2V (24V)
  • Combine (2 min): 13.0V (12V) / 26.0V (24V)
  • Open Low: 12.75V (12V) / 25.5V (24V)
  • Auxiliary Priority Open: 12.25V (12V) / 24.5V (24V)
  • Over Voltage Lockout: 16.0V (12V) / 32.0V (24V)

Design & Installation Features

  • Side and bottom knockouts for flexible cable routing
  • Clip-on insulating cover for safety
  • Quick-connect terminals for ground and optional features
  • Integrated LED for real-time status indication
  • Supports multiple cable terminals on extended studs

Optional Features

  • Auxiliary Battery Priority for extended auxiliary usage
  • Remote LED indicator (requires optional LED)

The BatteryLink™ ACR Relay 120A is a smart and reliable solution for managing dual battery systems, ensuring efficient charging and protecting your power setup in demanding environments.

Batterylink™ Automatic Charging Relay – 12v/24V DC 120A

$198.95

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