Surge Guard 50A Hardwire – Model 40240

Southwire RV Hardwired Surge Protector Model 40240

Surge Guard* 50A – Model 40240

Full Protection Hardwire

Rated 120/240V, 50A, 3350 Joules

Total Electrical Protection from Faulty Park Power

  • Multi-mode surge suppression
  • Automatic reset on power restoration
  • 128 second reset delay protects A/C compressor
  • Remote power monitor LCD display (English)
    • Joystick for easy screen navigation
    • Displays voltage and amp draw (RMS)


Protects against:

  • Power surges
  • Open ground
  • Open neutral
  • Low (<102V) and high (>132V) voltage
  • Reverse polarity
  • Miswired pedestal
  • High and low frequency
More Information
Rated 120/240V, 50A
12000 Watts
3350 Joules
Config Listed
Technical Data:
Frequency: 60Hz
Max Spike Current - 130,000A
Over/Under Voltage - Yes
Open Neutral Protection - Yes
Reverse Polarity Protection - Yes
Miswired Pedestal Indication - Yes
Time Delay at Power Up (2 Min.15 Sec) - Optional
Remote Display - Yes
UL Listed - Yes
Source Power Connection Diagnostics - Yes