SI-ACR Automatic Charging Relay – 12/24V DC 120A

BS-7610

Features

Automatically combines batteries during charging, isolates batteries when discharging and when starting engines

  • Protects sensitive electronics by temporary isolation of house loads from engine circuit during engine cranking
  • Designed for 12 or 24 volt systems
  • 12/24 volt auto ranging voltage input
  • Hermetically sealed contacts/vaporproof
  • Ignition protected—safe for installation aboard gasoline powered boats
  • Supports high-output alternators up to 120 Amperes
  • Dual sensing

Optional Features

  • Start Isolation allows temporary isolation of House loads from Engine circuit during engine cranking to protect sensitive electronics from sags and spikes
  • Remote LED remotely indicates ACR states – requires optional LED

Specifications

SI-ACR Automatic Charging Relay – 12/24V DC 120A
Nominal Voltage12V DC
24V DC
Start IsolationYes
Amperage Operating Current175mA (Combine)
15mA (Open)
Terminal Stud Torque140 in-lb (15.82 Nm)
Continuous Rating120A
Intermittent Rating210A (5 min)
Cable Size to Meet Ratings1/0 AWG
Terminal Ring Diameter Clearance1.12in (28.45 mm)
Terminal Stud Length0.875in (22.23 mm)
Terminal Stud Size3/8″ – 16 (M10)
Relay Contact Position
Combine 30 sec13.6V @ 12 V
27.2V @ 24 V
Combine 90 sec13.0V @ 12 V
26.0V @ 24 V
Open 10 sec12.35V @ 12 V
24.7V @ 24 V
Open 30 sec12.75V @ 12 V
25.5V @ 24 V
Open High16.0V @ 12 V
30.0V @ 24 V
Over Voltage Lockout16.0V @ 12V
32.0V @ 24V
Under Voltage Lockout9.5V @ 12 V
19V @ 24 V
Weight0.57 kg