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For technical assistance, please call 1-800-780-4324 x 20311 

Manufactured by Southwire Company, LLC, 5250 140th Avenue North, Clearwater, Florida 33760

© 2017 Southwire Company, LLC. All rights reserved.              * Trademark of Southwire Company, LLC. Registered in the United States.

MODEL 35550

HARDWIRE

MODEL 35530

HARDWIRE

OVER/UNDER VOLTAGE PROTECTION

Should voltage drop below 102V or rise above 132V for more than 8-14 

seconds, power to RV is turned off.

SEE TIME DELAY INDICATOR

INPUT POWER INDICATION

The green LED indicates power to RV when 

illuminated.

TIME DELAY AND FAULT INDICATOR

When unit is plugged in, the red caution LED 

is  flashing  indicating  delay  of  128  seconds.  

(This allows head pressure to bleed off the A/C 

compressor).  Flashing can indicate faults are 

present, like possible mis-wiring or current to 

ground conditions (will prevent power reset).

SURGE FAILURE

If the red “SURGE” indicator LED is on, it 

means that the built-in surge protection has 

been  sacrificed  to  protect  your  equipment 

and  is  no  longer  functioning  properly.  Other 

features will still function, but the unit is 

recommended  to be replaced. 

(with cover)   OUTPUT TERMINALS   (cover not required)

L1 VOLTAGE

When green light is on L1 is between 

102VAC to 132VAC.  When the light is red, 

L1 is  greater than 132VAC or below 102VAC, 

and  power  is  shut  off  to  protect  your  coach. 

3 MODE SURGE PROTECTION

Protects the RV's sensitive electronic 

systems  and    appliances  from  potentially 

damaging power surge events  without power 

interruptions to the RV. 

FOR YOUR RECORDS

MODEL NO: ___________________
DATE PURCHASED:  ____________
WHERE PURCHASED: __________

L2 VOLTAGE

When green light is on L2 is between 

102VAC to 132VAC.  When the light is red, 

L2 is  greater than 132VAC or below 102VAC, 

and  power  is  shut  off  to  protect  your  coach. 

LINE

LOAD

(with cover)   INPUT TERMINALS   (cover not required)

PLEASE READ THE ENCLOSED 

INSTRUCTIONS CAREFULLY.

In the event you have any questions 

concerning the care of this product, 

please contact Customer Support.

REMOTE PORT

Connection for optional Remote LCD display 

PN 40298 (sold separately).  

Caution: Use 6-pin cable only.

505-00115C

INSTALLATION & OPERATING

INSTRUCTIONS

56

1-01044 

C

LOAD

LINE

120/240V, 50Amp

3850 Joules of Power Surge Protection

Model 35550

REMOTE

PORT

SURGE

(No Protection When Lit)

LINE 2

(Green = OK, Red = Fault)

LINE 1

(Green = OK, Red = Fault)

CAUTION WHEN FLASHING

POWER ON

* Trademark of Southwire Company, LLC. Registered in the United States.

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