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FAQ

Frequently Asked Questions

  • Splitter Switch

  • What is a Splitvolt Splitter Switch?

    A Splitvolt Splitter Switch allows you to share your existing, standard 220V - 240V dryer socket with your EV charger so that you don’t have to install a new circuit. It intelligently and safely switches full power between your dryer and EV charger on demand—with no user intervention required. It simply plugs into your 240V wall socket, and then plug both your dryer and EV charger into it. The device will automatically sense when the dryer is in use, and provide full power to it until the cycle completes and then automatically switches power back to your EV charger when the dryer completes its cycle.

  • Who should use a Splitvolt Splitter Switch?

    Anyone who wishes to avoid the cost, complexity, and time of adding a new 220V - 240V circuit, the Splitter Switch can allow you to do so.  You can use it to share your existing 30 amp dryer circuit with your EV charger, or you can use a dedicated circuit to charge two EVs.

  • What is the maximum safe Level 2 charging rate for 220V - 240V circuits for my Splitter Switch?

    The NEC requires a 20% buffer below circuit rating for continuous EV charging. Therefore, for standard 30 amp, 220V - 240V household dryer circuits, the maximum safe charging rate according to the National Electrical Code (NEC) is 24 amps.  For 50 amp circuits, the maximum safe charging rate is 40 amps.

  • What if my dryer isn't in my garage?

    The Splitter Switch requires 240V access within proximity of your EV. If your laundry room or dryer is near your garage, people will often use a 240V extension cable to position it appropriately. However, if it is too far away you may still need to have an electrician run a line to the proximity of your vehicle. In that case, you could still use the Splitter Switch on that circuit to charge two EVs, so you don’t need to add another circuit.

  • Why not just use a Y-cable splitter to connect the dryer and EV charger?

    A Y connector would allow both the dryer and EV charger to run at the same time, thereby overloading the standard 30 amp household circuit. This would create an unsafe environment according to the National Electrical Code. You need an automatic and intelligent power switcher to ensure only one is operating at a time to protect your circuit.

  • Does the Splitter Switch require installation by an electrician?

    No electrician nor complex installation is required—just plug it in and you immediately have Level 2 fast charging for your EV in a matter of minutes. Anyone can do it.

  • Is the Splitvolt Splitter Switch safety certified?

    Yes, the Splitvolt SPS C1-011, SPS C2-022, and SPS C2-032 are cETLus listed Intertek 5021938. Conforms to UL STD(s) 60730-1 and Certified to CSA STD E60730-1.

  • EV Chargers

  • I received a basic L1 charger when I bought my vehicle. Why should I get a Splitvolt Level 2 Portable EV Charger?

    Currently, over 80% of vehicle charging takes place at home because it is the most convenient and cost effective way to charge your vehicle. Today’s newer EVs have much larger capacities and single charge ranges from 300-500 miles. Common 120V (Level 1) chargers are too slow and have a charging rate of 3 miles per hour, meaning it could take over 100 hours for a full charge! The Splitvolt Level 2 Portable EV Charger provides up to 7 to 12 times faster charging at rates between 21-37 miles per hour and is small/portable for travel convenience. It can use an existing 220V - 240V 30 amp dryer circuit to provide Level 2 fast home charging without the need to install a new circuit.

  • What is the difference between a Splitter Switch and Portable EV Charger?

    These two products serve related, yet very different purposes and are complementary. A Splitvolt Splitter Switch can be used to provide power to Splitvolt or third-party EV chargers. Likewise, the Splitvolt Portable EV chargers do not require a Splitter Switch and can connect to standard 220V - 240V charging circuits directly using common NEMA 10-30, 14-30, or 14-50 plugs.

  • Will the Splitvolt Portable EV Chargers connect to my electric vehicle?

    Yes, they connect to all common US electric vehicles using a standard J1772 interface. For Teslas, the charger connects using the J1772 adapter that comes with the vehicle.

  • Do I need an electrician to install my Splitvolt Portable EV Charger?

    No, this product is completely plug & play. Just plug it in to a standard household 220V - 240V outlet with NEMA 10-30, 14-30 or 14-50 outlets and that’s it!

  • What is the maximum safe Level 2 charging rate for 220V - 240V circuits for my charger?

    The NEC requires a 20% buffer below circuit rating for continuous EV charging. Therefore, for standard 30 amp 240V household dryer circuits, the maximum safe charging rate according to the National Electrical Code (NEC) is 24 amps.  For 50 amp circuits, the maximum safe charging rate is 40 amps.  

  • What do the LED lights tell me?

    The Splitvolt Portable EV Charger has LEDs on the control box to indicate EV charging status. Click this link to read further.

  • Can I mount it to a wall?

    There is a slot in the back of the EV charger control box so it may be easily hung using a standard screw and then may be removed and replaced by hand without any tools.

  • Cables

  • What are Splitvolt extension cables and adapters?

    Splitvolt extension cables and adapters are convenience products that make it easier for your EV charger or Splitvolt Splitter Switch to reach your vehicle. There are multiple lengths as well as various socket and plug interface combinations. Primary interfaces are NEMA 10-30, NEMA 14-30 and NEMA 14-50.

  • What if I don’t have a dryer or other 220V - 240V circuit in my garage or near my vehicle?

    In this case, you may be able to use 220V - 240V extension cables to reach your vehicle charger. They are for sale by Splitvolt. Otherwise, you may need an electrician to install a circuit.  Be sure that any changes to your home wiring or circuitry is done according to local building codes. If unsure, contact a certified electrician.

  • General

  • Are Splitvolt products safety certified?

    Safety is a top priority for Splitvolt. Certain products are safety certified and others have safety certified components. Read this article for further information on safety certifications for the new Splitter Switches. Read this article for more information on our older Splitter Switches.

  • What is the product warranty?

    Splitvolt products have a one (1) year manufacturer’s limited warranty from date of product purchase. We also offer an optional 4 Year Extended Warranty for Splitter Switches and Portable EV Chargers.

    Click here to view our full warranty policy.

  • What is the return policy?

    Splitvolt's return policy can be found here.

  • Troubleshooting

  • Why might the breaker trip on the Splitter Switch?

    The most common reason that your Splitvolt Splitter Switch has turned off (breaker tripped) during a charging cycle is because charging is set at a rate of more than 24 amps. Charging at rates higher than 24 amps on a 30 amp circuit is against the recommendation of the NEC (National Electrical Code). Our Splitter Switch is equipped with a thermomagnetic breaker to prevent over-current, which prevents such misuse. When it trips, it is protecting your home. Please contact your car dealership for charge rate settings, or contact our support at www.splitvolt.com/help. If you know or can limit the charge rate to stay below 24 amps, then it will usually resolve the breaker tripping issue.

  • What type of sounds does the Splitvolt Splitter Switch make?

    It is normal for you to hear a clicking noise from the unit when the dryer is started or stopped. The device is sensing the power draw of the dryer, and disconnecting power to the EV socket.

    It is also normal to hear a quiet hum coming from the unit whenever it is powered on. You shouldn’t be able to hear this hum if you are 20 feet away.

    Both of these noises are generated from the contactor within, and are normal.