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Samlex America 12v 24v 160 Amp Automatic Charge Isolator

Was: $165.30
Sale Price: $104.95
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Product InformationStore Part Number: ACR-160


The Samlex America ACR-160 combines battery banks for charging and isolates them when charging has stopped. It provides priority for charging only the starter battery first and protects from excessive discharging of the starter battery.


  • - Microprocessor controlled, dual sensing
  • Starter battery priority
  • Easy to install - does not require charging the existing circuit of the alternator
  • Potted, waterproof, sealed unit
  • Low standby current
  • Automatic detection of 12 or 24 VDC systems
  • 160 Amp continuous rated, 480 Amp peak (250 msec)
  • Monitoring of relay activation by external LED
  • Over voltage protection
  • 2 Year Limited Warranty


Make sure your batteries are of same design. If battery types are mixed, you may damage one or both.

Tech Specs

  • Dimensions (LxWxH): 4.187 x 2.875 x 2.25 in
  • Weight: 1.0 lb
  • Shipping Weight: 2 lb
  • Operating Voltage: 12 VDC / 24 VDC (Automatic Detection)
  • Maximum Current: 160A
  • Peak Current: 480A for 250ms
  • Consumption Off: 12v = 1.8mA / 24V = 2.0mA
  • Consumption ON: 12V = 340mA / 24V = 170mA
  • Minimum Charge Time: 60 seconds
  • Fast Opening: < 11.8V (12V) / 23.6 (24V) after 4 seconds
  • External Fuse for Battery Connections: 200A, 32V
  • Model: ACR-160
  • Manufacturer: Samlex
  • Minimum Size of Wires for Battery Connections: AWG #1/0 or 50 mm2
  • A1 (Stud & Nut, M8): Connects to Positive terminal of Starter Battery
  • A2 (Stud & Nut, M8): Connects to Positive of Auxiliary Battery in normal function / Connects to Positive of Load in “Voltage Dependent Switch” function
  • STATUS (6.3 mm / 1/4” Quick Disconnect / FASTON connector): When connected to Positive terminal of Starter Battery in
  • “Start Assistance” function, the relay is energized / No connection - normal operation / When connected to battery Negative through switch, the relay is de-energized :
  • Minus (6.3 mm / 1/4” Quick Disconnect / FASTON connector): Connects to Starter Battery Negative
  • LED (6.3 mm / 1/4” Quick Disconnect / FASTON connector): When connected to external LED, will indicate relay energization
  • External LED (Optional): Indicates energization of relay
  • IP Rating: IP65 (Dust-proof; Water-proof against hose spray)
  • EMC Compliance: EN61000-6-2: 2005: Immunity Against Industrial Environment. EN6100-6-3: 2007: Conducted and Radiated Emissions for Residential, Commercial and Light Industrial Environment. 2004/104/EC: Automotive Directive
  • Operating Temperature Range: 20˚C to 40˚C (Linearly de-rate to 80A at 85˚C) / -4˚F to 104˚F (Linearly de-rate to 80A at 185˚F)
  • Manufacturer Part #: ACR-160
  • UPC: 622988086359
  • Made In: China

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Specification Sheet


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