SI-ACR Automatic Charging Relay – 12/24V DC 120A-Retail Packaging Not Included

SKU: BSS7610B

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

Original price was: £152.50.Current price is: £127.08.

SI-ACR Automatic Charging Relay - 12/24V DC 120A-Retail Packaging Not Included

Specifications

Nominal Voltage
12V DC24V 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 V27.2V @ 24 V

Combine 90 sec
13.0V @ 12 V26.0V @ 24 V

Open 10 sec
12.35V @ 12 V24.7V @ 24 V

Open 30 sec
12.75V @ 12 V25.5V @ 24 V

Open High
16.0V @ 12 V30.0V @ 24 V

Over Voltage Lockout
16.0V @ 12V32.0V @ 24V

Under Voltage Lockout****
9.5V @ 12 V19V @ 24 V

Weight
1.25lb (0.57 kg)

*Condition: Engine starting

Relay is open isolating batteries
Batteries are isolated to protect sensitive electronics from voltage sags and spikes

**The maximum current a switch is designed to conduct for an indefinite period.
***The maximum amount of current a switch is designed to carry for a minimum of a designated period of time.
****As a safety feature, some ACRs prevent combining into a severely discharge battery. A dual-sensing ACR will monitor the voltage on both batteries and will not connect if either battery is below the undervoltage lockout level. Use caution when combining into a battery with extremely low voltage, because this might represent a faulty battery or a problem elsewhere in the system.