Are there any alternatives to the zooz zen15? I have a 9.5 amp sump pump and it’s an instant 9.5 amps.
I was using the zen05 but Zooz technical support said the zen15 was recommended for my application.
Are there any other zwave options with the functionality of a zen15?
How much electrical wiring knowledge do you have? A Z-Wave relay may be a better option 
The pump is outside and the zen15 is in one of these but the medium size.
Is the Zen15 not working?
I have a Zen15 in a similar box running a 1.5hp pump and heater for a 120v hot tub. So similar load.
Add a properly rated (for motors) contactor and have the device turn the contactor on and off.
Not sure that the ZEN78 is motor rated or not either.
It works. it doesn’t report accurately. what version of firmware are you in?
Firmware: 2.30.0
How do you know it doesn't report accurately?
I have a clamp meter and it seemed to be pretty close, but don't remember how close. That wasn't something I thought about. I'm not sure I'd expect to see the current reported that was the same as listed on the motor.
There is a bug in the zen15 where the auto-off timer isn't reset correctly. That causes devices to prematurely shut off in some cases.
It’s a well known problem. I am looking for an alternative to it, but it seems as if there isn’t one. My device is 9.5 amps instantly when turned and it has reported 10 and 5 amps where my zen05 reports 9.5 each time.
Go into your voltage history and see if it dropped to zero at any time over the last month.
I cannot fix it as zooz is in denial about this. I’m looking for another option.
Aeotec sells a Smart Switch 7. I don't know if their energy use reporting is more reliable than the Zen15. I use their heavy duty module (ZW078) to cut out my dryer when I'm charging my EV. AFAIK, it works as expected but I've never double-checked it against anything else . . .
Thanks for the link. I guess I've been lucky. I have eight of them and I haven't seen this jumping of power. None of mine show a voltage drop to zero. All solid.
Hope you find one that works for you.
Which align with when it is using power:
Here's the dryer that's not running.
Esp32 relay.
Set to function locally with HA control as backup
Is possible
General comment:
Inrush current during motor startup can be quite high, depending on motor type and design.
Voltage and Current sampling may not find the peak each and every time, cheaper clamp meters may not show peaks, and result in selection of underpowered switching that results in contact pitting and premature failure if the switching mechanism is a mechanical relay or contactor, or a semiconductor that doesn't switch during AC Zero Crossing. Where samples are measured in seconds or minutes, a millisecond spike can be often missed, or averaged out, giving you highly misleading figures.
You may have to identify the actual manufacturer of the motor and examine their data sheets to find the peak draw, and select your switching mechanism appropriately to cope with the peak load and a bit of headroom for times when there are surges, spikes and brownouts.
Specific comment:
Your Zen15 included protection circuitry that may temporarily kick in for self protection, extending or overloading the motor inrush period, moving the burden to the sump pump motor longevity rather than (most often) cheaper switching mechanism.
Post the make and model of your sump pump please for certainty.
It’s a Zoeller m-53
4.7 to 9.7 amps. I have nothing else on the circuit. It’s reporting the correct amps. I had to expand the chart to see 10 amps at start, 9 running for 15 seconds and the 4 at the end of its cycle. It seems to have a better sampling rate than the zen05.
I think I’m good. The voltage reports high compared to my volt meter. I want to see the voltage drop when it starts. That dictates pump life if it drops too
much and I have a long cable run from the panel.
The pump is rated at 115 v. The zen15 reports 127 v and the volt meter shows 122.
Sump pump wants 115V at 9.5A and 0.3HP - both the motor and switching circuits have protection so should be ok with your proposed combination rated at 15amps with normal use for switching purposes, but your sampling rates may not show peaks. How important is that in the overall scope of things?
Your 115vac is a nominal voltage - 130 is high but not excessive. A few bumps is expected, especially with things being switched on and off. Your voltage sensors may need calibration if you want them to be exactly the same. Often 5-10% is good enough - you dont want 9 nines NIST standards for a sump pump monitor for home use.
I bought two Zen15s and smoked one. They are more fragile than you think.
Take a look at their FAQ
DO NOT connect any of the following:
Sump pumps (we do not recommend controlling critical appliances like a sump pump with any type of wireless technology)Their Customer Service is great. If you reach out to them with your use case they will provide the correct device for your needs.
The oscilloscope trace for length of time the sump pump sucks peak power would be interesting. Analog, not sampling trace.
I note the precautions lean towards 220v equipment and reliability of communication as well as devices that draw peak current for longer periods. You can bypass this problem by installing a switch of lower capacity (cheaper) and pairing it with a heavy duty contactor which is designed to carry heavy loads and high inrush current. This is common practice in the electrical industry, and the added reliability and longevity may prove a better choice in the long run.
Agreed 
I love Zooz devices, but the ZEN15s are more fragile than the stated limitations. Just my opinion.
Hindsight and experience top spec sheets, always!
For vendors, product support, device returns and warranty claims will guide subsequent generation design considerations if short term profits are not the primary driving factors for staying the long run.
Sadly, marketing and accounts is sometimes the tail that wags the dog, and falling sales and escalating product support load is overlooked.
Competition and regulation are market forces that cannot be ignored. Reputation can be a double edged sword.
It’s not all that important. Thanks the good discussion.
