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Engineered for GE Series 90-30 Load Switching
This module switches AC and DC loads directly from the PLC backplane. It provides reliable relay outputs for the GE IC693MDL930C unit. You will find this relay card in Series 90-30 control systems. Unlike transistor modules, this version handles mixed voltage loads. It controls up to twelve independent channels for field devices.
Technical Specifications & Physical Dimensions
We designed this relay module for universal load compatibility. The table below presents all verified technical specifications.
| Parameter | Specification |
|---|---|
| Physical Dimensions (W x H x D) | 125mm x 90mm x 55mm |
| Total Weight | 0.35 kg (350 grams) |
| Output Channels | 12 form-A (normally open) relays |
| Maximum Switching Voltage | 250V AC / 30V DC |
| Maximum Switching Current | 2 Amps per channel (resistive) |
| Maximum Inrush Current | 5 Amps for 10 milliseconds |
| Response Time | 10 milliseconds typical |
Functional Architecture and Contact Configuration
This module connects to solenoids, contactors, lamps, and horns. It uses twelve electro-mechanical relays for flexible load control. You can mix AC and DC loads on the same module. Moreover, the module includes relay suppression for extended contact life. These components reduce arcing during inductive load switching. Consequently, the board handles small motors and valve solenoids reliably.
Installation and Operational Guidelines
The GE IC693MDL930C consumes 120 mA at 5V DC from the backplane. It updates outputs every 1 millisecond after CPU scan. You must use external fuses for circuits above 2 Amps. Always install flyback diodes across DC inductive loads. This practice prevents relay contact welding from voltage spikes. Furthermore, the module includes LED indicators for each output channel. This feature allows immediate visual status checking of all 12 relays.
Physical Characteristics and Environmental Limits
This relay module has a compact, industrial-grade plastic housing. Its lightweight 0.35 kg design allows for easy rack installation. The layout follows GE standard Series 90-30 specifications. Therefore, it fits securely into any Series 90-30 rack slot. The module requires one slot width for installation. In addition, it maintains stable operation between 0°C and 60°C ambient temperature. You can store this unit safely between -40°C and 85°C.