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Compare Energy Management Systems EVEMS / EMS

	BlackBox EVEMS240	DCC / RVE *	AC Dandy Loadmiser
Footprint, Dimensions	Volume 192 inch/sq, 8” x 6” x 4”	Volume 440 inch/sq, 11” x 8” x 5”	Volume 756 inch/sq, 14" x 12" x 4.5"
Technology	Algorithm Intelligent Switching or Priority One-Way Switching #	Simple Threshold & Time Switching	Priority One-Way Switching
Monitoring System	All Main Lines or One Breaker Line	All Main Lines	One Breaker Line
Adjustable Time Delay †	Yes	No	Yes
Bi-Directional Capable	Yes	No	No
Controlled Device Resistive Loading Rating	Yes	Yes	Yes
Controlled Device FLA Rating ‡	Yes	No	No
Current Sensor Sized for Electrical Service Entrances	Yes	No	No
Design with Fail-Safe Switching §	Yes	No	Yes
Testing Device Available	Yes	No	No
Included Offset Nipple For ease of CT installation	Yes	No	No
Included Controlled Device Label	Yes	No	No
Available in NEMA1 Enclosure	Yes	No	No
Available in NEMA3R Enclosure	Yes	Yes	Yes
Patented Design	Yes	No	No
Multi-Residential Hub Compatible	Yes	No	No
End Device Rating for 15A - 90A	Yes	No	No
Dual Priority Energy Management Capable	Yes	No	No

* DCC – 12 used for size but references may apply to other models

# Algorithm Computer Controlled Switching provides more protection for controlled devices of all varieties by eliminating damaging short cycling. It also provides for the longest run/charge times by intelligently monitoring your electrical usage and making decisions on when the controlled device can safely operate.

† Ability to fine-tune how fast the computer will decide to turn the controlled device back on after satisfying the algorithm. This allows for a testing function with instantaneous operation as well as having this set more conservatively or for faster action depending on the situation. (Standard setting is halfway through the travel)

‡ FLA (Full Load Amp) ratings combined with LRA (Locked Rotor Amp) ratings are used to size control systems for inductive loads such as motors and provide for a diversity of applications like A/C, Heat Pumps, and Pool Pumps, etc.

§ Fail-safe design means that if the controller ever gets damaged or stops communicating with the switching device the system is designed to fail in a de-energized state preventing overloads and possible damage to people and property due to fire risk by overheating of devices or unexpected main breaker tripping and loss of whole home power