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

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

Features

• 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

• Nominal Voltage: 12V DC / 24V DC
• Start Isolation Condition: Engine starting
• Amperage Operating Current: 175mA (combined) | 15mA (open)
• Terminal Stud Torque: 140 in-lb (15.82 Nm)
• Continuous Rating: 120A
• Intermittent Rating: 210A (5 min)
• Cable Size to Meet Ratings: 1/0 AWG
• Stud Material: Tinned Copper
• Terminal Ring Diameter Clearance: 1.12in (28.45 mm)
• Terminal Stud Length: 0.875in (22.23 mm)
• Terminal Stud Size: 3/8" - 16 (M10)

Relay Contact Position

• Combine 30 sec : 13.6V @ 12 V | 27.2V @ 24 V
• Combine 90 sec : 13.0V @ 12 V | 26.0V @ 24 V
• Open 10 sec: 12.35V @ 12 V | 24.7V @ 24 V
• Open 30 sec: 12.75V @ 12 V | 25.5V @ 24 V
• Open High: 16.0V @ 12 V | 30.0V @ 24 V
• Over Voltage Lockout: 16.0V @ 12V | 32.0V @ 24V
• Under Voltage Lockout: 9.5V @ 12 V | 19V @ 24 V
• Weight 1.25lb (0.57 kg)

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