GE IC693PWR321X Power Supply

This power supply provides regulated DC power for GE Series 90-30 PLC systems. It converts 120 or 240 VAC input into stable 5 and 24 VDC outputs. Therefore, it supplies all connected CPU and I/O modules with clean operating voltage.

Physical and Input Specifications

The GE IC693PWR321X measures 12.5 cm in length and 9.0 cm in width. Moreover, its supply weight equals approximately 0.72 kg for rack mounting. A single 4-pin terminal block accepts AC input from an external source. Additionally, this module delivers power through the Series 90-30 backplane to all slots.

Parameter	Specification
Brand	General Electric (GE)
Full Model	IC693PWR321X
Category	Power Supply
Dimensions (L x W x H)	12.5 cm x 9.0 cm x 5.5 cm (4.92″ x 3.54″ x 2.17″)
Supply Weight	0.72 kg (1.59 lbs)
Input Voltage Range (AC)	85 to 264 VAC (Universal)
Input Frequency	47 to 63 Hz
Input Current (120 VAC)	1.8 A (Maximum)
Input Current (240 VAC)	0.9 A (Maximum)
Inrush Current	25 A Peak (Cold Start at 120 VAC)
Output Voltage 1	+5 VDC (Regulated)
Output Current 1	3.0 A (Continuous)
Output Voltage 2	+24 VDC (Regulated)
Output Current 2	0.5 A (Continuous)
Output Ripple (5 VDC)	< 50 mV Peak-to-Peak
Output Ripple (24 VDC)	< 100 mV Peak-to-Peak
Output Accuracy (5 VDC)	±2% (No Load to Full Load)
Output Accuracy (24 VDC)	±3% (No Load to Full Load)
Hold-Up Time	20 ms at Full Load (120 VAC Input)
Efficiency	> 75% (Typical)
Overvoltage Protection	Yes (5 VDC: 5.8 V, 24 VDC: 28 V)
Overcurrent Protection	Yes (Automatic Foldback)
Short Circuit Protection	Yes (Continuous Recovery)
Overtemperature Protection	Yes (Shutdown at 90°C Internal)
On-Board Components	1 Switching Transformer + 1 Bridge Rectifier + 5 Filter Capacitors + 1 PWM Controller IC + 2 Optocouplers + 6 Protection Diodes + 1 Internal Fuse + 1 EMI Filter
Energy Storage	1 x 820 µF Electrolytic Capacitor (450V, Input) + 2 x 1500 µF (10V, 5V Output) + 1 x 470 µF (35V, 24V Output) + 1 x 10 µF Tantalum (25V)
Operating Temperature	0°C to +55°C (32°F to 131°F)
Storage Temperature	-25°C to +85°C (-13°F to 185°F)
Cooling	Passive (Natural Convection)
Mounting Type	Series 90-30 PLC Rack (Leftmost Slot)
Status Indicators	1 Green LED (5 VDC OK) + 1 Green LED (24 VDC OK) + 1 Red LED (Fault)

Energy Storage and Hold-Up Performance

The GE IC693PWR321X stores significant energy using five large electrolytic capacitors. Specifically, one input capacitor stores energy from the AC line for 20 ms hold-up time. In addition, two output capacitors filter the 5 VDC supply for stable backplane power. Moreover, one capacitor filters the 24 VDC output for I/O modules. Furthermore, one tantalum capacitor provides high-frequency noise suppression. Consequently, the system continues running through brief AC power interruptions reliably.

Universal AC Input and Protection Features

This power supply accepts universal AC input from 85 to 264 VAC without jumpers. For instance, it operates on 120 VAC or 240 VAC systems automatically. In addition, overvoltage protection shuts down the supply if voltages exceed safe limits. Moreover, overcurrent protection reduces output current automatically during overload conditions. Furthermore, short circuit protection allows continuous recovery without permanent damage. Finally, overtemperature protection prevents internal component failure during excessive heat. Thus, the GE IC693PWR321X safeguards your entire Series 90-30 PLC system effectively.

Passive Cooling and Thermal Management

This power supply uses passive convection cooling without any fans or moving parts. Specifically, an aluminum heat sink dissipates heat from switching transistors and diodes. In addition, the module operates reliably in dusty environments where fans would fail. Moreover, derating curves allow full output current up to 50°C ambient temperature. Furthermore, the 75 percent efficiency reduces waste heat generation significantly. Thus, this power supply provides maintenance-free operation for industrial control cabinets.

Installation and Status Indication

Three LED indicators on the front panel provide operational status at a glance. First, a green 5V OK LED lights when the 5 VDC output is within specification. Second, a green 24V OK LED indicates proper 24 VDC output voltage. Third, a red Fault LED illuminates during overcurrent or overtemperature events. Additionally, this module occupies the leftmost slot of the Series 90-30 rack. Furthermore, the module includes a locking ejector for secure backplane insertion. Therefore, it powers all CPU and I/O modules through the backplane efficiently.