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Emerson KC3021X1-BA2 DeltaV 24 VDC Dry-Contact Plus Card

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KC3021X1-BA2

32-Channel 24 VDC Dry-Contact Plus Card

Exact part-number matching supports correct system fit, electrical duty and cabinet integration.

CHANNEL DENSITY

32 discrete input channels

ELECTRICAL DUTY

24 VDC field circuit · 4.5 mA per channel

LOCAL / FIELD BUS

12 VDC at 75 mA · 24 VDC at 30 mA

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PRODUCT SYSTEM SUPPLY CONTACT FAQ MODELS

32-CHANNEL DISCRETE INPUT

EMERSON KC3021X1-BA2

DeltaV 24 VDC Dry-Contact Plus Card

High-density dry-contact acquisition

The card accepts 32 channels of 24 VDC dry-contact input for the supported DeltaV Plus I/O arrangement. It combines local-bus power, bussed field power and per-channel field circuitry in a keyed carrier installation.

Terminal-block key position: E3

Channels	32 dry-contact inputs
Local bus power	12 VDC at 75 mA
Bussed field power	24 VDC at 30 mA
Field circuit	24 VDC at 4.5 mA/channel
Ambient range	-40°C to +70°C
Humidity	5–95%, non-condensing

Field power must be removed before connecting or removing the card. The unit cannot be inserted or removed with system power energized. The rotary keying arrangement must match the associated terminal block.

DETAILED OPERATING PROFILE

Power Paths, Channel Behavior and Installation Control

Electrical path	Rated demand	Engineering purpose
Local bus	12 VDC at 75 mA	Supplies card electronics through the carrier.
Bussed field power	24 VDC at 30 mA	Supports the common field-side input arrangement.
Per-channel field circuit	24 VDC at 4.5 mA/channel	Defines the load presented by each dry-contact input path.

32-channel density
One card concentrates 32 discrete dry-contact input points. Field wiring, common distribution and channel assignment should be checked before moving conductors to a replacement.

E3 keyed terminal interface
The rotary key position is E3. The terminal block must match this keying so an incompatible field interface is not forced onto the card.

Maintenance profile
No calibration adjustment or internal user servicing is required. Fault investigation should focus on field voltage, contact state, wiring, carrier connection and channel diagnostics.

Environmental envelope: -40°C to +70°C, 5–95% non-condensing humidity, 10 g half-sine shock for 11 ms, 1 mm peak-to-peak vibration from 2–13.2 Hz and 0.7 g from 13.2–150 Hz.

Safe Card Exchange

Isolate field power
Remove the 24 VDC field supply before disconnecting conductors.

De-energize system power
The card must not be inserted or removed with system power applied.

Verify keying
Confirm the E3 terminal-block key and carrier position.

Test all channels
Validate field contact operation and assigned logic.

Confirm the complete Plus I/O assembly before purchase.
Send card code, carrier, terminal block and installed DeltaV version.

GET A QUOTE

Plus I/O Signal Path and Comparison

Field Contacts
32 dry-contact signals

KC3021X1-BA2
24 VDC DI Plus card

DeltaV Carrier
Local bus and field-power path

KC3021X1-BA2
32-channel dry-contact input card

KC3040X1-BB1 relationship
PLC5 24 VDC input signal conditioner; connects only with this DI card in its intended interface arrangement.

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Contact Miya Zheng for KC3021X1-BA2

EMAIL sales@amikon.cn WHATSAPP 86-18020776792

Return support: Notify us within 7 days after receipt. Preserve original condition and provide the reason. Return or replacement review follows receipt; buyer covers return shipping.

KC3021X1-BA2 FAQ

Does KC3021X1-BA2 accept 32 dry-contact inputs?
Yes. It is a 32-channel 24 VDC dry-contact Plus card.

Can KC3021X1-BA2 be removed with system power energized?
No. Remove field power and system power before connecting or removing the unit.

Which terminal-block key is required for KC3021X1-BA2?
The specified rotary key position is E3. Confirm the installed terminal block before insertion.

Does KC3021X1-BA2 require calibration?
No. It contains no user calibration adjustment and no user-serviceable internal parts.

What should be compared before replacing KC3021X1-BA2?
Confirm the exact card, carrier, terminal-block keying, field-power arrangement, system version and channel configuration.

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