Blue Sea Systems m-ARC Automatic Charging Relay

Blue Sea Systems m-ACR Automatic Charging Relay with Start Isolation: Efficient Battery Management for Dual Systems

The Blue Sea Systems m-ACR Automatic Charging Relay is designed for seamless battery management, automatically combining batteries during charging and isolating them when discharging or starting the engine. With a continuous 65A rating and 12V/24V DC auto-ranging voltage input, this ACR senses charging on two battery banks, ensuring efficient and reliable power distribution. Its versatile design allows surface, rear, or front panel mounting, and the snap-on cover insulates terminal connections for added safety.

The m-ACR features integrated LED indicators for real-time status updates, quick-connect terminals for easy grounding, and an optional Start Isolation function. This feature temporarily isolates house loads from the engine circuit during cranking, protecting sensitive electronics from voltage sags and spikes. Constructed with one-piece stainless flange nuts, this relay ensures safe and secure terminal connections, providing peace of mind in demanding conditions.

• Intermittent Rating: 5 minutes, 115A
• Continuous Rating: 65A
• (Combine) Amperage Operating Current: 90mA. (Open) Amperage Operating Current: 15mA.
• Nominal Voltage: 12V/24V DC
• Cable Size to meet current ratings: AWG (16mm²). Maximum Cable Size: 1/0 AWG (50mm²).
• Terminal Stud Size: 1/4"-20 (M6). Terminal Stud Length: 7/16" (11 mm).
• CE Marked, ISO 8846. Meets SAE J1171 external ignition protection requirements. IP67 - protected against immersion up to 1 meter for 30 minutes.