GE IC693PWR321K Power Supply

The IC693PWR321K operates as a dedicated power supply for the Series 90-30 PLC system. This unit converts AC line voltage into stable DC power for the backplane. It supplies all connected modules with the correct operating voltages. Therefore, this power supply ensures reliable operation of your entire control system.

Technical Specifications

We engineered this power supply for demanding industrial automation environments. Its compact form factor fits into the leftmost slot of any Series 90-30 base. Moreover, the unit includes built-in overvoltage and short-circuit protection.

Parameter	Specification
Dimensions (H x W x D)	5.5 x 2.8 x 5.1 inches (140 x 71 x 130 mm)
Weight	0.91 kg (2.0 lbs)
Input Voltage	85-264V AC (universal input)
Input Frequency	47-63 Hz
Input Current	1.5 A maximum at 115V AC
Inrush Current	25 A peak maximum
Output Voltage (Backplane)	5V DC
Output Current (5V)	30 A continuous
Output Voltage (External)	24V DC (isolated)
Output Current (24V)	1 A continuous
Efficiency	85% typical at full load
Hold-up Time	20 ms minimum
Operating Temperature	0°C to 60°C (32°F to 140°F)

Output Capabilities and Distribution

The IC693PWR321K supplies 30 amperes at 5V DC to the backplane. This power supports all I/O and specialty modules in the rack. The unit also provides 1 ampere at 24V DC for external field devices. Consequently, you do not need a separate power supply for small sensor networks.

Protection Features and Reliability

This power supply includes overvoltage clamping on all output rails. It also provides short-circuit protection that resets automatically after fault removal. The unit features thermal shutdown to prevent damage from excessive temperatures. Therefore, this power supply protects your expensive PLC modules from electrical faults.

Input Characteristics and Ride-Through

The IC693PWR321K accepts any AC input from 85 to 264 volts. This universal input works worldwide without jumper or switch changes. The unit provides 20 milliseconds of hold-up time during power dips. Hence, the PLC continues running through brief voltage sags and interruptions.

Energy Storage Components

This power supply uses high-capacitance electrolytic capacitors for energy storage. These capacitors provide the hold-up time during input power interruptions. No battery exists on this unit for memory retention purposes. The capacitors discharge completely within 60 seconds after removing input power.

Cooling and Thermal Management

The IC693PWR321K uses convection cooling without any internal fans. The metal housing acts as a heatsink for power semiconductors. Maintain 50 mm of clearance above and below the unit for airflow. Consequently, this power supply operates silently without any moving parts to fail.

Installation and Wiring

Mount the IC693PWR321K into the leftmost slot of the base only. Connect the AC line wires to the removable terminal block securely. Use 14 AWG copper wire for the AC input connections. Tighten the terminal screws to 0.8 Nm of torque. Always disconnect AC power before removing or inserting this module.