LRR410_XSC Reactor Relay 4-Channel 10-Amp SPDT + 8-Channel 8-Bit A/D with XSC Interface 4 - 10 Amp SPDT Relay(s) XSC Interface Range: 1 mi. to 15 mi. Reactor Series $272.00 Full Description> LRR420_XSC Reactor Relay 4-Channel 20-Amp SPDT + 8-Channel 8-Bit A/D with XSC Interface 4 - 20 Amp SPDT Relay(s) XSC Interface Range: 1 mi. to 15 mi. Reactor Series $312.00 Full Description> LRR430_XSC Reactor Relay 4-Channel 30-Amp SPST + 8-Channel 8-Bit A/D with XSC Interface 4 - 30 Amp SPST Relay(s) XSC Interface Range: 1 mi. to 15 mi. Reactor Series $323.00 Full Description> LRR45_XSC Reactor Relay 4-Channel 5-Amp SPDT + 8-Channel 8-Bit A/D with XSC Interface 4 - 5 Amp SPDT Relay(s) XSC Interface Range: 1 mi. to 15 mi. Reactor Series $262.00 Full Description>