GE IC693PWR321N | Power Supply Module

This power supply module provides DC power to your Series 90-30 rack. It converts incoming AC line voltage into stable outputs for all modules. The unit mounts in the leftmost slot of the base rack.

Technical specifications

Parameter	Specification
Brand	GE Intelligent Platforms
Model	GE IC693PWR321N
Product Family	Series 90-30
Category	Power Supply Module
Input Voltage	120/240V AC (selectable)
Input Frequency	47 to 63 Hz
Input Current	1.0A at 120V AC, 0.5A at 240V AC
Output Voltage 1	+5V DC (nominal)
Output Current 1	6.0A continuous from +5V rail
Output Voltage 2	+24V DC (isolated relay power)
Output Current 2	1.0A continuous from +24V rail
Total Output Power	30 Watts maximum
Hold-up Time	15 ms at full load
Efficiency	Approximately 75%
Overvoltage Protection	Yes (crowbar circuit)
Number of Components	1 PCB, 1 transformer, 5 capacitors
Energy Storage	2 x electrolytic capacitors (primary side)
Dimensions (L x W x H)	Approx. 14 cm x 11 cm x 10 cm
Weight	Approx. 0.9 kg
Operating Temperature	0°C to 60°C
Cooling	Convection (no internal fan)

Detailed Technical Analysis

This power supply module accepts either 120V or 240V AC input voltage. You select the correct voltage using a slide switch on the side. The unit then produces a regulated +5V DC output at 6 amps. It also provides an isolated +24V DC rail for relay circuits.

Now let us examine its energy storage features. The GE IC693PWR321N contains two large electrolytic capacitors on the primary side. These capacitors store enough energy for 15 milliseconds of hold-up time. This feature bridges short power interruptions without resetting the PLC. The unit achieves approximately 75% efficiency under normal load.

The power supply uses convection cooling without any internal fan. This design eliminates fan noise and maintenance requirements. The GE IC693PWR321N weighs 0.9 kilograms and fits in a single slot. Its crowbar circuit protects against overvoltage conditions on the output rails.

Installation and Wiring Guidelines

You mount this power supply in the leftmost slot of a Series 90-30 rack. Connect the AC input wires to the terminal block on the bottom. Use 14 AWG or larger wire for the AC supply connection. The GE IC693PWR321N automatically distributes +5V and +24V to the backplane.

For safety, connect a proper earth ground to the grounding terminal. Do not exceed the maximum output current ratings on either rail. The +5V rail powers logic circuits in the CPU and I/O modules. The isolated +24V rail supplies power for relay output modules only.

Practical Applications

Engineers use this power supply for small to medium Series 90-30 systems. For example, a rack with one CPU and eight I/O modules needs 30 watts. The GE IC693PWR321N also powers remote racks in distributed configurations. Its convection cooling suits clean, dust-free control cabinets.

Summary

To conclude, this power supply module delivers 30 watts of DC output power. It provides 6 amps at +5V and 1 amp at +24V. Choose GE IC693PWR321N for reliable rack power in Series 90-30 systems.