GE · PACSYSTEMS RX3i · INDUSTRIAL AUTOMATION
GE IC694MDL231B
240 Vac Isolated Discrete Input Module · PACSystems RX3i
IC694MDL231B is the revision-B form of the RX3i IC694MDL231 240 Vac isolated discrete input design. It provides eight individually isolated AC input points, with each point having its own common connection. The reactive resistor/capacitor input circuits are intended for high-voltage field devices such as pushbuttons, limit switches, and electronic proximity switches. Each input is optically isolated from the backplane and frame ground, while point-to-point isolation allows separate AC sources to be used for individual points.
TECHNICAL PROFILE
Core specifications & engineering details
| Module function |
240 Vac isolated discrete input |
| Input points |
8, each with a separate common |
| Rated voltage |
240 Vac, 50/60 Hz |
| Input range |
0 to 264 Vac, 50/60 Hz |
| ON-state voltage |
148 to 264 Vac |
| OFF-state voltage |
0 to 40 Vac |
| ON-state current |
6 mA minimum |
| OFF-state current |
2.2 mA maximum |
| Typical input current |
15 mA at rated voltage |
| ON response |
30 ms maximum |
| OFF response |
45 ms maximum |
| Field-to-backplane isolation |
250 Vac continuous; 1500 Vac for one minute |
| Point-to-point isolation |
250 Vac continuous; 1500 Vac for one minute |
| Backplane consumption |
60 mA from 5 Vdc bus with all inputs on |
| Status indication |
Eight green LEDs for input ON/OFF state |
| Field supply |
AC field power supplied by the user; DC field power is not applicable |
SYSTEM POSITION
RX3i discrete input architecture: where IC694MDL231B fits
Within the RX3i discrete-input family, IC694MDL231B is the high-voltage isolated option. IC694MDL230 is the 120 Vac, 8-point isolated counterpart, while IC694MDL240 provides 16 points at 120 Vac without the same point-by-point isolation arrangement. For 24 Vdc sensing, the RX3i family instead includes modules such as IC694MDL645. The practical distinction is therefore not simply point count: IC694MDL231B is selected when 240 Vac sensing and independent input isolation are central to the field circuit.
|
IC694MDL231B
8-point isolated · 240 Vac · 0–264 Vac range |
IC694MDL230
8-point isolated · 120 Vac class |
IC694MDL240
16-point · 120 Vac class · higher point density |
IC694MDL645
16-point · 24 Vdc positive/negative logic |
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PURCHASING QUESTIONS
Five buyer-focused FAQs for GE IC694MDL231B
Why choose GE IC694MDL231B when the cabinet already has 120 Vac inputs?
The key purchasing distinction is voltage class and isolation. IC694MDL231B is designed around a 240 Vac rated input with eight individually isolated points, so it is better aligned with field circuits that actually operate in the 240 Vac range.
Can GE IC694MDL231B accept a DC proximity sensor instead of an AC device?
No. The module is an AC input design. Its specified input range is 0–264 Vac at 50/60 Hz, and the field circuit requires an AC source; it should not be treated as a DC input module.
Does GE IC694MDL231B allow different AC sources on different channels?
Yes. Each of the eight input points has a separate common and point-to-point isolation is specified. This architecture permits separate AC sources for individual points when the field wiring and protection are designed accordingly.
What should be checked before replacing an older high-voltage input with GE IC694MDL231B?
Verify the field voltage, frequency, input ON/OFF thresholds, terminal wiring, point isolation requirement, backplane loading, and the exact RX3i rack position. The 148–264 Vac ON-state range is especially important when the field supply may sag.
How does GE IC694MDL231B help during commissioning?
Eight green status LEDs provide a direct visual indication of input state. The isolated channel arrangement also makes it easier to keep separate field circuits electrically separated while the controller monitors the resulting %I states.
Order protection: Please contact AMIKON within 7 days after receipt if an issue occurs. Returned items should remain in original condition and include the specific return reason. A return or replacement can be arranged after the returned item is received. Shipping costs arising from the return are the buyer's responsibility.
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