Black Box: Dual Energy Manager for Service Sizes 125A – 200A, and up to TWO End Devices

May 21, 2025
Black Box’s patented automatic load management system or EV energy management system (EVEMS / EMS) provides the ability to install up to two 11.5KW or 48A electric vehicle* chargers on an existing electrical service that would otherwise cause overloading issues. No need for an electrical panel or service upgrade. Compatible with all major EV manufacturers and charge rates.
This dual-energy manager is for service size 125A -200A and can control 2 end devices*, with one being priority and the other secondary, on 1 electrical service.
*See settings chart below or in the installation manual for setting options.

Dual Energy Manager Key Features
- Can manage up to 2 end devices on 1 electrical service
- Fast and easy to install: 30-45 min.
- Small size fits in tight areas around electrical panels (8″ x 8″ x 4″).
- Approved for general use or as an EVEMS by Intertek (ETL)
- Longest charge times due to intelligent current monitoring.
- No need to disconnect the main service wires.
- No extra breakers needed.
- Solar grid tie installation compatible.
- Real-time reading of the total power consumption of the electrical panel.
- Bi-Directional capability
- Remote shutdown override equipped
These can be used to control up to 2 general-purpose devices that can tolerate load shedding, up to a max of 40FLA/50A per contactor. When using with general-purpose devices select the settings row with the rating just above what the device rating is.
Link to installation instructions and specifications sheets for more information.