Relay Interface Modules - Standard 1 N/O Economy 1 N/O Economy Reverse blocking diode -ve looped 24 VDC Coil OEN Relay 1 C/O Standard 1 C/O Standard Reverse blocking diode -ve / +ve or isolated looping by jumpers(site selectable) 24 VDC Coil OEN Relay 1 C/O Looped Coils 1 C/O Looped Coils Reverse blocking diode -ve looped ( Factory set ) OR +ve looped 24 VDC Coil OEN Relay 1 C/O Space Saver 1 C/O Space Saver Reverse blocking diode Directly Soldered OEN Relay 2 C/O Standard 2 C/O Standard Reverse blocking diode -ve / +ve or isolated looping by jumpers 24 VDC Coil OEN Relay 2 C/O Looped Coils 2 C/O Looped Coils Reverse blocking diode -ve looped (Factory set) OR +ve looped 24 VDC Coil OEN Relay 2 C/O High Volt. Coil 2 C/O High Volt.Coil 2 C/O Contacts 230VAC Coil Isolated Coils OEN Relay 1 C/O Sugar cube Looped Coils 1 C/O Sugar cube Looped Coils Reverse blocking diode -ve looped ( Factory set ) OR +ve looped 24 VDC Coil Sun hold Relays 1 C/O Sugar Cube Isolated Coils 1 C/O Sugar Cube Isolated Coils Reverse blocking diode Isolated Coils 24 VDC Coil Sun hold Relays 1 C/O High Voltage Coils 1 C/O High Voltage Coils 1 C/O Contacts Isolated Coils 230VAC Coil OEN Relay 1 C/O 24VAC Coils 1 C/O 24VAC Coils 1 C/O Contacts Isolated Coils 24 VAC Coil OEN Relays 1 C/O Fuse 1 C/O Fuse at Pole with Fuse Fail Indication Reverse blocking diode -ve looped ( Factory set ) OR +ve looped 24 VDC Coil OEN Relay 1 C/O with High volatge Coil & Fuse 1 C/O with High volatge Coil & Fuse at poles with Fuse Fail Indication 1 C/O Contacts Isolated Coils 230 VDC Coil OEN Relay