Blue Sea Charging Relay 500 Ampere, Automatic Battery Relay, High Reliability for Heavy-Duty Generators

The 500 A magnetic relay (bistable) automatically connects the batteries when charging and isolates the batteries when discharging and when starting the engine.

• Including remote control Contura Switch PN 2146 of the ML series
• Automatically manages the charging of two large battery banks
• Allows parallel connection of battery banks for emergency starting
• 500 amps continuous power to support high-performance generators
• Magnetic Lock (ML) – ACR consumes very low current (<40 mA to monitor terminal voltage) when in the “ON” or “OFF” state and consumes moderate current for a very short time when the state changes
• Dual sensing – detects the charge level of both battery banks
• Start Isolation (SI) – can be configured to temporarily isolate house loads from the motor circuit during engine start-up to protect sensitive electronics
• Motor Isolation (EI) – can be configured to isolate two motors while running to protect the engine electronics and maximize alternator performance
• Senses charges via two battery banks
• LED output for remote indication when batteries are combined, isolated, in voltage lockout, or in start or motor isolation
• 3/8'-16 tinned copper bolts for maximum conductivity and corrosion resistance
• The bolt length of 7/8 inch (22 mm) is suitable for multiple cable connections
• Silver alloy contacts provide high reliability when switching live loads
• Labeling recesses for circuit identification