PROGRESSIVE INDUSTRIES EMSRDS Remote Display

in this video we compare portable and hardwired rv electrical management systems also known as ems to see if there's any significant differences between them what we found might be surprising an ems system provides two basic functions surge suppression and automatic disconnection of the rv if the voltage current and frequency exceed safe limits portable ems systems are typically located at the power pole while hardware ems systems are wired into the rv usually adjacent to the ac distribution breaker panel we compared a progressive industries portable ems pt-30x to an ems hw30c also manufacturers may call their ems systems surge suppressors even though they have an ems function there are also surge suppressors that do not have the ems function so make sure you differentiate between the two typically surge suppressors run around 100 or less while a full-blown ems system is around three hu