Check the listing for details. Middle Atlantic MPR Module 20A Controlled Series Surge RLM-20A-SP. Condition: New. Listed at 475.00 USD. Series Protection™ Modular Power Raceway modules enable the industry’s fastest-responding series surge protection within the company’s configurable vertical power strip system. With the ability to provide series type, non-degrading surge protection to all modules integrated within the MPR raceway, Series Protection modules offer flexibility for protecting all connected equipment. The industry’s only vertical power strip to offer series type, non-degrading surge protectionThe industry’s only field-configurable strip to offer series type surge protectionProvides Series Protection™ to all cascading modules in each circuitModule sits on top of raceway channel to allow circuit wiring between modules and unimpeded connection to the termination12 year warrantyCurrently installed “A” version MPR raceway systems can be outfitted with Series Protection™ modulesETL ListedProvides patented Series Protection™