GE IC693MDL230C | 120V AC Isolated Input Module

This AC isolated input module supports eight discrete channels. Each channel accepts 120V AC nominal voltage from field devices. The GE IC693MDL230C provides optical isolation for enhanced noise immunity. It also protects your PLC backplane from voltage spikes. You will find this module ideal for industrial automation systems.

Key Technical Specifications

The table below summarizes the critical technical parameters of GE IC693MDL230C.

Parameter	Specification
Input Points	8 (isolated, grouped)
Nominal Voltage	120V AC
Input Voltage Range	0–132V AC
Frequency	47–63 Hz
Input Current	12 mA typical at rated voltage
Off-State Voltage Max	20V AC
On-State Voltage Min	74V AC
Isolation Rating	1500V RMS (field to logic)
Response Time (On/Off)	1 cycle (16.6 ms at 60 Hz)
Power Consumption	40 mA from 5V DC backplane
Energy Storage	Internal RC snubber per channel
Dimensions (H x W x D)	13.8 cm x 3.3 cm x 9.8 cm
Weight	0.25 kg

Physical Interface and Construction

This module uses a single 20-pin terminal block for field wiring. You will need a compatible female connector (sold separately). The housing consists of high-impact thermoplastics for durability. Each channel includes LED indicators for quick status checks. Internal energy storage capacitors filter electrical noise effectively. The total component count inside the board remains low, which improves reliability.

Operational Performance

Transition words help describe the behavior clearly. For instance, the module filters input signals for one full AC cycle. Therefore, it ignores short-duration transients in harsh environments. Additionally, the isolation barrier separates the field side from the logic side completely. Consequently, this design prevents ground loops or false triggering.

Installation and Compatibility

You can install this module in any Series 90-30 PLC rack. First, align the board with the backplane slot. Then, push firmly until the locking tabs engage. Finally, connect the field wiring to the terminal block. This module does not require external power for the input circuits. Instead, it draws all necessary power from the 5V backplane supply.