EMS-HW50C Hardwired EMS-HW50C Surge & Electrical Protector

Never heard of that happening. It does have a bypass switch so you can force it to allow power through even if it detects an issue and shuts down.

I have one and the three things I don't like about it is the fact that the readout was off quite a bit and I had to calibrate it (should be done at the factory) and if you install it yourself, they can deny warranty coverage.
Then there's the display that's right out of 1972.

If I had it to do over, I would take a closer look at the Surge Guard unit and then decide.

Have used one going on 7 years now. Never an issue and great tech support - 24/7.

We have one, very happy with it. It has shut down power to my rig when it was over 135v at the pole and when it was 103v at the pole. I have seen on other forums an installation using twistlock connectors to make it easy to uninstall.

I have had surgeguard (prior rig) and can tell you this was the first thing installed on my new trailer. The progressive unit has a long history of good performance and
after sale support. I can personally confirm their prompt and effective support. No affiliation just extremely satisfied customer.

If the EMS completely fails just remove it. Just 4 wires to move or twist on some large wire nuts to bypass. Mine (30 amp hardwired)is working fine for a decade.

Very pleased with mine. The only time that I bypass the unit is when im running my Honda 2000 to power the rig. Biggest challenge of install was bending the heavy gauge wires into their spots inside the unit through the ferrules.

Daryll

I have one in our 5ver for four years now and I have been very happy with the unit. it has shut down the incoming power twice because of low voltage. True that it was warm at the time because we could not have AC without power but that is the point of having the surge protector, it protected our air conditioning unit from low voltage.

time2roll wrote:
If the EMS completely fails just remove it. Just 4 wires to move or twist on some large wire nuts to bypass. Mine (30 amp hardwired)is working fine for a decade.

When my PT50X portable fails after taking a hit or other reason, I just unplug it and plug in my spare. Yes, I have 2 of them. Worth every cent they cost. While the dead one is going back for service I'm still protected. This has happened 4 times over the past 8 years of full time use.

edatlanta wrote:

time2roll wrote:
If the EMS completely fails just remove it. Just 4 wires to move or twist on some large wire nuts to bypass. Mine (30 amp hardwired)is working fine for a decade.

When my PT50X portable fails after taking a hit or other reason, I just unplug it and plug in my spare. Yes, I have 2 of them. Worth every cent they cost. While the dead one is going back for service I'm still protected. This has happened 4 times over the past 8 years of full time use.

i'm glad to see somebody other than me carries a spare - so many shoddy electrical systems in campgrounds, good to have piece of mind.

Thank you everyone for your time and response. I'll put one on order.

We’ve had low voltage detected twice. Checked the pedalstal with my multimeter to confirm it, then changed the fridge to gas only, shut off the AC and only used the 110 ac I was willing to have damaged