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50 Amp Surge Protector with Voltage Protection

Catalog Item # 56420
$455.69   SAVE $46.20 (10%)
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Progressive Industries' Hardwired Electrical Management System (EMS) provides full RV surge and electrical protection against all adverse power conditions.
Whenever electrical power falls below 104 volts or rises above 132 volts, the EMS automatically shuts down power to the RV.

Once the electrical power rises above 104-volts, or below the 132-volt level, the time delay indicator flashes for the preset time and then automatically restores power to the RV. Remote digital readout features built-in surge fault indication, amperage meter, voltage meter, frequency meter, 3-mode surge protection, reverse polarity protection, open neutral/open ground protection, lost/open neutral protection, and AC frequency protection. Factory setting 15 seconds but can be adjusted to a 2 minute 16 seconds (136 seconds) delay for A/C Protection. Frequency Protection (Low <51Hz, High 69HZ>).

Remote display: Scrolls continuously through all of the power source information: voltage, current, frequency, error codes, and previous errors. Each reading is displayed for 2 seconds. Modular design for easy repair, eliminating removal of unit. Should the software ever change, EMS owners can receive a free upgrade at no cost.

The EMS-HW50C unit is shipped with the remote digital display, cable and extra hardware tucked INSIDE the unit for safe shipping. Simply remove the lid.


Technical Specs

Tech Specs

Weight: 2.5 lbs.

Dimensions: 9" x 5" x 4"

Warranty: Lifetime warranty

Manufacturer: Progressive Industries Inc

Mfg Part #: EMS-HW50C

Tech Notes:

  • Operating Temperatures: -40° C to + 105° C
  • Ratings: 240V/50A/12,000W
  • 5-mode surge protection: 3,580 joules
  • Surge current 88,000 Amps
  • Mfr. #EMS-HW50C
  • Made in USA

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    50 Amp Surge Protector with Voltage Protection: Customer Reviews

    Camper's Choice Rating

    (5 Based on 3 Reviews)

    Reviewed by 3 customers



    0 out of 0 people found this review helpful.
    May 05, 2012
    Order on 4/27/2012 and recieved it on 5/2/2012 by UPS. Install it it on my 5th wheel Redwood 38BR 2012. so far so good it was a little bit of a job. Working good so far and with a lifetime warranty and the sale price you can't go wrong.
    Was this review helpful? Yes / No

    Top Notch Surge Protector

    0 out of 0 people found this review helpful.
    August 28, 2012
    Excellent surge protector, does everything it's advertised to do. Best of all, it's mounted inside the RV, out of the weather, and not visible to possible theft. Recommend NOT cutting your existing 50-amp cord if possible. I disconnect the 4 wires from my RV elec panel, and connected the loose ends of these wires to the input side of the surge protector. Purchased a 3 ft. section of #6 wire from my local big box store to connect the output side of the surge protector to my RV electrical box. This allows me to remove the surge protector if I trade 5th wheels, and reconnect my original wiring. Love being able to monitor current draw from each leg of my 50A service from inside the 5th wheel with the provided remote monitor.
    Was this review helpful? Yes / No

    Wouldn't be without it!

    0 out of 0 people found this review helpful.
    April 13, 2013
    Why do RV's come without these? I did a lot of researching various brands of poweprotection and decided on Progressive Industries. For theft, accidental damage prevention and ease of use having it mounted inside our 5th wheel made it a no-brainer. The remote display just made it that much better.Don't leave home without it.
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    Q & A

    Product Question & Answer

    2 questions : 2 answers
    Expand All
    Dimentions ? Not sure where I could have it mounted.
    1 answer(s)
    is the remote hard wired or wireless?
    1 answer(s)

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