Phoenix Contact SO46 Integrated Filter Relay Modules are insensitive to interference voltages up to 80VAC due to a high relay dropout voltage. These highly compact relay modules contain integrated RCZ filters that increase the release voltage and help to combat the leakage current and interference voltage issues. The completely assembled SO46 versions are now available in SPDT (6.2mm) and DPDT (14mm) designs with screw or push-in connection technology. These SO46 integrated filter relays utilize the same PLC relay accessories.