Enerdrive ML Series 500A 24V Magnetic Latching Automatic Charging Relay (ACR)
The Enerdrive ML Series 500A 24V Automatic Charging Relay (ACR) is designed to manage charging between two large battery banks. Its magnetic latching (bi-stable) relay automatically combines batteries during charging and isolates them during discharge and engine starting. It also allows battery banks to be paralleled for emergency starting.
With a 500A continuous current rating, the relay supports high-output alternators. Its magnetic latching design draws very low current in both the ON and OFF states, helping minimize power consumption. A manual control switch provides additional safety, including a LOCK OFF function for servicing.
Configurable Start Isolation and Engine Isolation functions help protect sensitive electronics during engine cranking and when multiple engines are running. An LED output allows remote indication of the relay's operating status. The remote control Contura switch is sold separately.
Features
- 500A continuous current rating
- Designed for 24V electrical systems
- Magnetic latching (bi-stable) relay design
- Automatically combines batteries during charging and isolates them during discharge and engine starting
- Manages charging across two large battery banks
- Allows battery banks to be paralleled for emergency starting
- Very low current draw in ON and OFF states (less than 40mA to monitor terminal voltage)
- Manual control with LOCK OFF capability for servicing
- Dual sensing detects charging on both battery banks
- Configurable Start Isolation (SI) helps protect sensitive electronics during engine cranking
- Configurable Engine Isolation (EI) helps isolate two engines while both are running
- LED output for remote indication of combined, isolated, voltage lockout, Start Isolation, and Engine Isolation states
- 3/8"-16 tin-plated copper studs for conductivity and corrosion resistance
- 7/8" (22mm) stud length accommodates multiple cable terminals
- Silver alloy contacts for reliable switching of live loads
- Label recesses for circuit identification
- Remote Control Contura Switch (Part No. 2146) sold separately
| Part Number | Product Type | Continuous Current Rating | System Voltage | Relay Type | Current Draw | Sensing | Terminal Studs | Stud Length | Isolation Functions |
Remote Control |
|---|---|---|---|---|---|---|---|---|---|---|
| BS-7623B | ML Series Automatic Charging Relay (ACR) | 500A | 24V | Magnetic latching (bi-stable) | Less than 40mA for terminal voltage monitoring in ON or OFF states | Dual sensing across two battery banks | 3/8"-16 tin-plated copper | 7/8" (22mm) | Start Isolation (SI); Engine Isolation (EI) |
Contura remote control switch, Part No. 2146, sold separately |
