GE IC694MDL940 – 16-Channel Relay Output Module Guide

Introduction

The GE IC694MDL940 is a robust relay output module from the PACSystem RX3i series, now under Emerson Automation. This product review examines its key specifications and practical value for industrial automation professionals. As a 16-channel relay output module, it provides reliable switching for various field devices.

Key Specifications

This module features sixteen normally open (N.O.) contacts grouped into four groups of four outputs each. Each channel supports an operating voltage range of 5 to 30 VDC or 5 to 250 VAC at 47 to 63 Hz. Nominal voltages are 24 VDC and 120/240 VAC. The maximum load is 2 amps pilot duty per output, with a maximum of 4 amps per common group. Minimum load is 10 mA, and inrush rating is 5 amps.

Power and Isolation

The IC694MDL940 draws 7 mA from the 5 V bus and 135 mA from the 24 V relay bus on the backplane when all outputs are on. It offers 250 VAC continuous isolation and 1500 VAC for one minute between field and backplane, and between field and frame ground. Point-to-point isolation is also provided.

Applications and Compatibility

This module is compatible only with RX3i PacSystems CPUs and fits in any I/O slot on the backplane. It is ideal for controlling motor starters, solenoids, and indicators in discrete manufacturing and process control systems. The 32 front-panel LEDs clearly show each channel's status, aiding diagnostics. Note that the module lacks an internal fuse, so users should install external fuses for channel protection.

Conclusion

The GE IC694MDL940 offers a solid combination of channel count, voltage flexibility, and switching capacity. Its 15 ms response time suits most industrial applications. For engineers and procurement professionals, this module delivers dependable performance in a compact single-slot design. Explore this module and other automation solutions at PLC Source PRO.