Mastervolt MLI Ultra Safety Relay & Fuse Block Connection Kit

Designed only for Mastervolt MLI Ultra 3000 & 6000 batteries.

Max Continuous Current: 300A
Operating Temperature: -10C to 50C
Max Voltage (12V): 64V (Not recommended for 48V systems)
Max Voltage (24V): 64V (Suitable for 48V systems)

Not recommended for systems where planned continuous current is over 300A. When selecting a Class T fuse above 300A it should only be for planned durations of 5 minutes or less.

Increases height of MLI Ultra 3000 and 6000 by 2.5in (65mm)

Relay bracket mounts over the top of the battery hold down strap. When installing place strap before the relay bracket, or place strap to side of the relay bracket.

We use this relay bracket on 90% of installations that have MLI Ultra 3000 and 6000 batteries. By having the safety relay and fuse directly connected to the positive battery terminal it ensures immediate disconnect of power in the event of a battery safety event and the fuse protects everything after the battery post.

If you plan to have continuous current above 300A we recommend purchasing the ML-RBS and Class T fuse block separately and connecting them with the appropriate size battery cable to handle the current.