Thirty-two dry-contact channels support dense discrete-input acquisition.
Overview
KC3021X1-BA2 is identified by Emerson as a DeltaV DI 32-channel 24 VDC Dry-Contact Plus card. The complete KC number defines the card identity.
The card uses 12 VDC local-bus power and 24 VDC bussed field power. Each field circuit is documented at 24 VDC and 4.5 mA.
Emerson states that the unit must not be removed or inserted while system power is energized. It contains no user-serviceable parts and does not require calibration.
Specifications
| Manufacturer | Emerson |
|---|---|
| Exact model | KC3021X1-BA2 |
| System family | DeltaV |
| Module type | DI 32-Ch 24 VDC Dry-Contact Plus card |
| Input channels | 32 |
| Local bus power | 12 VDC at 75 mA |
| Bussed field power | 24 VDC at 30 mA |
| Field circuit | 24 VDC at 4.5 mA per channel |
| Ambient temperature | -40 to 70 °C |
| Relative humidity | 5 to 95%, non-condensing |
| Shock | 10 g half-sine, 11 ms |
| Vibration | 1 mm peak-to-peak at 2 to 13.2 Hz; 0.7 g at 13.2 to 150 Hz |
| Terminal block key position | E3 |
| Calibration | Not required |
Features
Separate local-bus and bussed-field power definitions aid cabinet load review.
G3 environmental classification supports suitable industrial control locations.
No field calibration is required for the module itself.
Applications
- DeltaV discrete input collection from dry contacts and compatible field devices.
- Process-control cabinets using the documented 24 VDC field architecture.
- Like-for-like replacement where the installed carrier and terminal key confirm KC3021X1-BA2.
About IndustryParts
https://www.industryparts.com/Card, carrier and field circuit remain one record
IndustryParts prepares KC3021X1-BA2 enquiries with the exact module identity, E3 key and 24 VDC field arrangement.
- Carrier identity captured
- E3 key retained
- Channel map requested
Lifecycle
- De-energize system power before insertion or removal as required by Emerson.
- Record carrier, terminal block, key position, channel map and field-power arrangement.
- Do not attempt component-level repair; the unit has no user-serviceable parts.
- After replacement, test each active channel and every affected permissive, alarm and trip.
FAQ
Can KC3021X1-BA2 be hot-swapped?
No. Emerson states that it must not be removed or inserted with system power energized. Follow the site isolation procedure.
What should accompany a KC3021X1-BA2 enquiry?
Provide the full card and carrier labels, terminal block key, field power, used-channel map, DeltaV release and required quantity.
Does KC3021X1-BA2 require calibration after installation?
The card itself does not require calibration, but all channels, field circuits and application logic still require functional verification.
How should a returned KC3021X1-BA2 be prepared?
Use ESD-safe packaging, protect the connector and keyed edge, and attach the channel symptoms, diagnostics and full identity.
What proves KC3021X1-BA2 is ready for service?
Confirm carrier and key match, normal diagnostics, correct 24 VDC field power and successful point-to-logic testing for every affected channel.
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