A compact hardwired EMS for 50 amp coaches with published cutoffs and a repairable design. Worth it when it costs less than the HW50C.
Amazon $158.29The Progressive Industries EMS-LCHW50 is the better RV surge protector overall, rated 3.8 to 3.5. The Progressive Industries EMS-LCHW50 leads on protection and price. The Progressive Industries EMS-LCHW50 costs $41.70 less ($158.29 vs $199.99).
A proven portable EMS for 50 amp coaches that does the whole job without an app. A good pick for owners who want full protection for about $200.
Camping World $199.99Prices 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 Progressive Industries EMS-LCHW50 for protection (high and low voltage cutoff, miswiring detection, restart delay, replaceable surge module vs high and low voltage cutoff, miswiring detection, restart delay) and price ($158.29 vs $199.99).
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 | Progressive Industries EMS-LCHW50 | Progressive Industries EMS-PT50X |
|---|---|---|
| Overall rating | 3.8/5 | 3.5/5 |
| Protection 35% | 100 high and low voltage cutoff, miswiring detection, restart delay, replaceable surge module | 85 high and low voltage cutoff, miswiring detection, restart delay |
| Surge rating 10% | 93 3,580 joules | 93 3,580 joules |
| Monitoring 10% | 50 volts and amps display | 50 volts and amps display |
| Price 20% | 82 $158.29 | 66 $199.99 |
| Warranty 25% | 0 warranty not published, scored as none | 0 warranty not published, scored as none |
Specifications
| Progressive Industries EMS-LCHW50 | Progressive Industries EMS-PT50X | |
|---|---|---|
| Protection | ||
| Service | 50 A | 50 A |
| Type | EMS | EMS |
| Surge rating | 3,580 J | 3,580 J |
| Voltage cutoffs | 104 V / 132 V | - |
| Miswiring detection | Yes | Yes |
| Restart delay | Yes | Yes |
| Replaceable surge module | Yes | - |
| Build | ||
| Mount | Hardwired | Portable |
| Display | Yes | Yes |
| App | No | No |
| Weatherproof | - | Yes |
| Lock | - | Yes |
| Released | 2016-03-01 | 2017-08-23 |
