The 45C-316 is a 19-slot card rack and backplane enclosure for Reliance AutoMate 30/40 series PLC systems. It serves as mechanical support, power distribution and data transmission channel for CPU, I/O, communication and power supply modules. This product has been discontinued, and only refurbished, surplus or NOS units are available for maintenance and expansion of legacy systems.

45C: Unified prefix for Reliance AutoMate 45C-series control components.316: Represents the 19-slot rack with the largest capacity in this product line.No suffix: Stands for the original hardware version. Models marked with A/B/C/D are revised versions with optimized structure and connection performance.Hyphen: A common format for industrial part numbers, which does not affect product functions and compatibility.

Slot Count: 19 slots in total, including long slots for CPU and power supply modules and short slots for I/O and communication modules.Backplane: Dedicated backplane for AutoMate 30/40 series, providing 24 VDC power distribution and high-speed data exchange.Material: Rugged metal housing for industrial application.Mounting: Equipped with top and bottom brackets for panel mounting, with additional fixing points on the rear side.Ventilation: Vents on the top and bottom for effective airflow and heat dissipation.Operating Environment: Operating temperature ranges from -10°C to +50°C, relative humidity 5% to 95% non-condensing.Weight: Approximately 3.0 kg.Power Supply Compatibility: Compatible with 2-slot and 3-slot power supply modules. The occupied slots will reduce the number of available positions for other modules.

Module Installation: Side loading design for easy installation and removal of modules, fixed by screws.Backplane Connector: Built-in edge connectors to realize power supply and data communication between modules and backplane.System Configurations: Standalone control system equipped with CPU, I/O and power supply; networked system based on R-NET protocol; remote distributed I/O system.

It provides reliable mechanical support and protection for all installed PLC modules.It distributes 24 VDC power to each module through the internal backplane.It enables stable data interaction between different modules to ensure normal system operation.It provides electromagnetic interference shielding to adapt to harsh industrial working conditions.It supports large quantity of module installation to meet the demands of large-scale automation systems.

It is used to replace or expand 19-slot racks in legacy AutoMate 30/40 series PLC systems.It is widely applied in large industrial sites including manufacturing production lines, process control, water treatment, power, metallurgy and petrochemical industry.It is suitable for old equipment renovation projects, maintaining compatibility with original system architecture and lowering renovation costs.It is an ideal choice for automation systems that require maximum I/O capacity and flexible module layout.

Installation: Fasten the rack on the control panel with mounting brackets and reserve sufficient space for ventilation.Module Insertion: Cut off system power before inserting modules into corresponding slots and fix them firmly.Power-On Check: Confirm all modules are fully seated and connections are reliable before powering on the system.Routine Maintenance: Clean dust on vents and connectors every quarter, check the tightness of mounting parts, and keep the device away from moisture and pollutants.Safety: Disconnect all power sources and wait for complete discharge before disassembly and maintenance work to prevent electric shock.