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DESCRIPTION
Description
500 Amp magnetic latching (bi-stable) relay automatically combines batteries during charging and isolates batteries when discharging and when starting engine
- Manual control switch provides an added level of safety allowing control with or without power, and offering LOCK OFF capability for servicing
- Automatically manages the charging of two large battery banks
- Allows paralleling of battery banks for emergency starting
- 500 Ampere continuous rating to support high-output alternators
- Magnetic Latch (ML)—ACR draws very low current (<40mA to monitor terminal voltage) in the “ON” or “OFF” states, and draws moderate current for very short time when changing state
- Dual sensing—senses charge on both battery banks
- Start Isolation (SI)—can be configured for temporary isolation of House loads from Engine circuit during engine cranking to protect sensitive electronics
- Engine Isolation (EI)—can be configured for isolation of two engines while both are running to protect engine electronics and maximize alternator output
- Senses charging on two battery banks
- LED output to remotely indicate when batteries are combined, isolated, in voltage lockout, or in Start or Engine isolation
- 3/8″-16 tin-plated copper studs for maximum conductivity and corrosion resistance
- 7/8″ (22mm) stud length accepts multiple cable terminals
- Silver alloy contacts provide high reliability for switching live loads
- Label recesses for circuit identification
- ML-Series Remote Control Contura Switch is not supplied with ACR. PN 2146 available as a separate item.
SKU: BS-7623B
SPECIFICATIONS
Specifications
| Control Circuit Connection |
Tinned wires — provided on retail units Deutsch DTM / Amphenol ATM — provided on bulk units |
|---|---|
| Nominal Voltage | 24V DC |
| Manual Control | Yes |
| Engine Isolation |
Condition: Two engines are running
|
| Mounting |
#10 (approx. #10 major diameter 4.83 mm; reference only) |
| Start Assist |
Condition: Engine starting
|
| Start Isolation |
Condition: Engine starting
|
| Amperage Operating Current | 13mA @ 25°C nominal VDC |
| Amperage Operating Current when changing state | <7.0A |
| Terminal Stud Torque |
140 in-lb (15.82 N·m) (approx. 11.7 ft-lb; reference only) |
| Continuous Rating | 500A |
| Intermittent Rating | 700A (5 min) |
| Cranking Rating (30 sec) | 1450A DC |
| Minimum Operating Temperature | -10°C |
| Maximum Operating Temperature | 60°C |
| Cable Size to Meet Ratings |
4/0 AWG x 2 (AWG to mm² varies by strand class/standard; reference only) |
| Live Current Switching | 300A @ 12V DC |
| Stud Material | Tinned Copper |
| Switching Cycles | 100000 |
| Terminal Ring Diameter Clearance |
1.12in (28.45 mm) (reference only) |
| Terminal Stud Length |
1.50in (38.1 mm) (reference only) |
| Terminal Stud Size |
3/8" - 16 (M10) (3/8" ≈ 9.53 mm major diameter; M10 is 10 mm; 16 TPI ≈ 1.59 mm pitch; reference only) |
| Wire Size |
20 AWG (approx. 0.52 mm² conductor area for standard solid AWG; reference only) |
| Relay Contact Position |
Combine 30 sec: 27.0V Combine 90 sec: 26.0V Open 10 sec: 24.7V Open 30 sec: 25.5V Open High: 32.4V |
| Weight (min / max) |
2.10–2.10 lb (0.95–0.95 kg) (approx. 950 g; reference only) |
| SKU: | BS-7623B |
| Model #: | BS-7623B |
| MPN: | BS-7623B |
Exotronic provides high-quality products and solutions tailored for B2B and commercial customers, including commercial businesses, caravan manufacturers, marine electricians, OEMs, as well as emergency services, and more.
