The Allen-Bradley 1756-L7SP by Rockwell Automation is a ControlLogix GuardLogix Controller designed for safety-critical applications. It draws 801 milliamps at 5.1 volts, dissipating 2.5 watts of power and 8.5 BTU/hr thermally. Despite lacking on-board I/O memory, this open-style module ensures reliable isolation with 30 volts continuous voltage. Manufacturer Rockwell Automation Brand Allen-Bradley Part Number/Catalog No. 1756-L7SP Series ControlLogix Module Type GuardLogix Controller I-O Memory N/A User Memory N/A Maximum I-O N/A Maximum Analog I-O N/A Maximum Digital I-O N/A Current Draw (1.2 Volts DC) 5 milliamps Current Draw (5.1 Volts) 801 milliamps Power Dissipation 2.5 Watts Thermal Dissipation 8.5 BTU per hour Isolation Voltage 30 Volts Continuous Enclosure None (Open-Style) UPC 10885630016495