Electric Vehicle Charger Load Management for 4 EV Chargers up to 100A Each

When a homeowner wants to add a new EV Charger (or any 4 loads up to 100A), to an existing main or sub-panel that is at max capacity, the SAK-4-100MS-M offers the customer a reliable and affordable solution, without having to pay thousands of dollars for a full panel upgrade.

Allows 4 loads up to 100A to be added to any main service panel or sub panel that is at risk of overload, or will become overloaded, when a new load is introduced. The onboard intelligent micro-controller monitors the load on the existing panel and only allows the added load access to the panel when capacity is available on each of the four existing loads. Installation requires four open breakers or two quad breakers.

  • Manages loads of 4 EV chargers up to 100A each
  • Can be installed on any main or sub panel up to 400A to add managed loads up to 100A continuous.
  • Adapts to any application using the precision field adjustable set points. These maximize access to the added load and prevent looping.
  • Field adjustable set points include: panel overload amperage, overload inrush cutoff delay, restore amperage threshold, load restore delay time and line-loss compensation adjustment for CTs. Controller LCD displays actual real-time amperage on panel.
  • Controller is self-powered from line voltage. External power supply not required. Can control 120 VAC single pole or 208–240VAC double pole circuits.
  • Prevents overloading and saves costly upgrades to panel and/or electrical infrastructure.
  • Utilizes a magnetic latching relay for long-term reliability, and box-lug in and out terminals for ease of installation.
  • 2 year warranty
  • Comes standard in NEMA 1 enclosure
    (NEMA 3R option also available)

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