Description
Blue Sea 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/vapor proof
- 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##
| Specifications | |
|---|---|
| Nominal Voltage | 12V DC 24V DC |
| Start Isolation | Yes |
| 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 |
| Overvoltage Lockout | 16.0V @ 12V 32.0V @ 24V |
| Undervoltage Lockout | 9.5V @ 12 V 19V @ 24 V |
| Weight | 1.25lb (0.57 kg) |
Manual Battery Management and ACR Sub-System
SI-ACR automatically combines batteries during charging, isolates batteries when discharging and when starting engines. The Dual Circuit Plus™ Battery Switch simplifies the switching of two batteries to OFF or ON while still providing battery isolation between the engine and auxiliary battery. The Combine function can be used to parallel the batteries in the event of a low engine battery.
##Specifications##
