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 Voltage | 12V DC 24V DC |
Start Isolation | Yes |
Amperage Operating Current | 175mA (Combine) 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 |
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 | 0.57 kg |