Southwire Surge Guard 34951
#3 in 50 ampFull review
A thorough 50 amp EMS with a long warranty for big coaches. Worth the premium mainly for the extra neutral protection and the warranty.
Nomadic Supply $399.95$399.95
The Southwire Surge Guard 34951 is the better RV surge protector overall, rated 4.3 to 3.5. The Southwire Surge Guard 34951 leads on protection and monitoring. The Hughes Power Watchdog PWD50 wins on price. The Hughes Power Watchdog PWD50 costs $179.96 less ($219.99 vs $399.95).
Hughes Power Watchdog PWD50
#8 in 50 ampFull review
A surge protector with phone monitoring and a replaceable module for 50 amp RVs. It suits owners who want to watch park power but don’t need automatic shutoff.
Amazon $219.99$219.99
Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Southwire Surge Guard 34951 for protection (high and low voltage cutoff, miswiring detection, restart delay vs replaceable surge module) and monitoring (volts and amps display and app vs app).
- Choose the Hughes Power Watchdog PWD50 for price ($219.99 vs $399.95).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 50 amp RV surge protector; a clear win is highlighted. How we rank explains each one.
| Factor weight | Southwire Surge Guard 34951 | Hughes Power Watchdog PWD50 |
|---|---|---|
| Overall rating | 4.3/5 | 3.5/5 |
| Protection 35% | 85 high and low voltage cutoff, miswiring detection, restart delay | 15 replaceable surge module |
| Surge rating 10% | 100 4,200 joules | 100 6,100 joules |
| Monitoring 10% | 100 volts and amps display and app | 50 app |
| Price 20% | 21 $399.95 | 60 $219.99 |
| Warranty 25% | 100 lifetime warranty | 100 lifetime warranty |
Specifications
| Southwire Surge Guard 34951 | Hughes Power Watchdog PWD50 | |
|---|---|---|
| Protection | ||
| Service | 50 A | 50 A |
| Type | EMS | Surge only |
| Surge rating | 4,200 J | 6,100 J |
| Voltage cutoffs | 102 V / 132 V | - |
| Miswiring detection | Yes | No |
| Restart delay | Yes | No |
| Replaceable surge module | - | Yes |
| Build | ||
| Mount | Portable | Portable |
| Display | Yes | No |
| App | Yes | Yes |
| Weatherproof | Yes | Yes |
| Lock | Yes | - |
| Warranty | Lifetime | Lifetime |
| Released | - | 2018-01-16 |