GE IC693MDL940K Relay Output Module

Description

GE IC693MDL940K Relay Output Module

Product Dimensions：

The GE IC693MDL940K is a 2A Output Relay Module belonging to the legacy Series 90-30 Programmable Logic Controller (PLC) platform, originally manufactured by GE Fanuc (now Emerson Automation Solutions). It is designed to interface the low-voltage control logic of the PLC with higher-power field devices.

Product Detailed Description

The IC693MDL940K provides 16 normally-open (Form A) relay output channels. These channels are divided into four isolated groups, with four channels sharing a common return line in each group. This isolation allows the module to switch different voltage sources or phases simultaneously within the same module (e.g., mixing AC and DC circuits). The “K” suffix indicates a specific hardware revision, often denoting a change in internal component suppliers or ROHS compliance, but it remains fully backward-compatible with older revisions (such as the suffix A through J).

Technical Parameters

Product Advantages

• High Switching Capacity: Capable of handling up to 2 Amps per point, eliminating the need for external interposing relays for many standard solenoids and contactors.
• Group Isolation: The 4 isolated groups allow high flexibility in wiring, enabling the control of distinct sub-systems with different voltages or power sources on a single card.
• Mechanical Durability: Built using robust relay components designed to withstand millions of mechanical cycles under proper load conditions.
• Status LEDs: Features a highly visible LED block at the top of the module, mapping out the ON/OFF state of all 16 points for rapid troubleshooting.

Important Considerations & Precautions

• Inductive Loads: When switching inductive loads (such as motor starters, solenoids, or relays), significant voltage spikes occur upon turn-off. You must install external suppression networks (RC snubbers for AC, diodes for DC) to prevent contact arcing and premature relay failure.
• Current Limitations: While each point can handle 2.0 A, the maximum current per common terminal cannot exceed 4.0 A. Exceeding this thermal limit will melt internal traces on the circuit board.
• Minimum Load Requirement: Ensure the connected device draws at least 10 mA. If the load is too small, the relay contacts may build up oxidization over time, leading to intermittent connection failures.

Product Applications

The IC693MDL940K is primarily found in legacy manufacturing and process industries:

• Motor Control Centers (MCC): Actuating the coils of size 1 to size 3 magnetic motor starters.
• Pneumatic & Hydraulic Systems: Direct control of heavy-duty 24VDC or 120VAC directional control valves and solenoids.
• Facility Automation: Controlling large lighting contactors, horn alarms, or strobe beacons for safety alerts.
• Interfacing: Sending dry-contact run/stop signals to independent third-party equipment like Variable Frequency Drives (VFDs) or air compressors.

Shipping Port: Xiamen, China

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