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The GE IC693MDR390C combines eight DC inputs and six relay outputs on one board. You can install this module directly into any Series 90-30 rack slot. It serves compact automation tasks requiring mixed signal capability. This unit reduces space requirements in crowded control cabinets.
Technical Specifications and Hardware Layout
This I/O module measures 127 mm in height. Its width reaches 55 mm, and the depth equals 140 mm. The GE IC693MDR390C weighs approximately 0.45 kilograms. A single internal PCB holds all input filtering and output driving circuits. The module provides eight 24 V DC input channels for field sensors. Additionally, it delivers six relay output channels for actuator control. The unit stores no energy in capacitors or internal batteries. One 48-pin front connector handles all field wiring connections.
| Parameter | Specification |
|---|---|
| Model | GE IC693MDR390C |
| Category | DC Input/Output Relay Module |
| Dimensions (H x W x D) | 127 mm x 55 mm x 140 mm |
| Weight | 0.45 kg |
| Internal PCBs | 1 |
| Digital Inputs | 8 (24 V DC) |
| Relay Outputs | 6 |
| Energy Storage | None |
| Field Connector | 48-pin front terminal |
| Status Indication | 14 LEDs (8 green, 6 red) |
| Isolation | 1500 V AC |
Input and Output Electrical Ratings
The GE IC693MDR390C accepts input voltages from 0 V to 30 V DC. Each input draws a typical current of 7 mA at 24 V DC. A logic “1” occurs at 15 V DC or higher reliably. For outputs, each relay channel switches 2 A at 250 V AC or 30 V DC. The total output current per module reaches 6 A maximum. Consequently, this module drives small contactors and solenoid valves effectively. Relay contacts include silver-alloy material for extended service life. Optical isolation separates the field side from the backplane logic.
Installation and Practical Application Tips
You must snap this module firmly into a standard 90-30 rack slot. Transitioning to wiring, use 0.5 mm² to 1.5 mm² stranded copper wire. The screw-type terminals require a 3 mm flathead screwdriver for tightening. For inductive loads, attach a suppression diode across each DC output. The operating temperature range extends from 0°C to 60°C reliably. This module consumes only 70 mA from the backplane bus.