Product Core Brief
- Model: VE4001S2T2B4
- Part Numbers: KJ3201X1-BA1 (commonly associated); CE4001S2T2B4 (redundant-pair counterpart)
- Brand: EMERSON / DeltaV
- Series: DeltaV M-Series Discrete Input I/O
- Core Function: 32-channel discrete (digital) input module for monitoring field contact status, relay outputs, valve position feedback, permissive signals, and interlock inputs within the DeltaV DCS.
- Product Type: DeltaV M-Series 32-Ch Discrete Input Module
- Key Specs: 32 channels | optical isolation (1500 VDC) | 24 VDC nominal field side | local bus 12 VDC @ 50–75 mA | -40 to 70°C operating temperature
- Condition: New Original (New Surplus) / Factory Sealed
Product Introduction (Rotation Engine)
The EMERSON DeltaV VE4001S2T2B4 is a 32-channel discrete input module for the DeltaV M-Series I/O subsystem. It is used to monitor the on/off status of field devices such as limit switches, proximity switches, relay contacts, valve position feedback, and permissive/interlock signals, converting them into digital inputs for the DeltaV controller.
The VE4001 family belongs to DeltaV’s M-Series traditional I/O platform. The suffix S2T2B4 identifies the specific channel count, isolation type, field voltage class, and terminal configuration. The VE prefix denotes a non-redundant module, while the corresponding CE4001S2T2B4 is the redundant-pair variant. The module is commonly cross-referenced under Emerson part number KJ3201X1-BA1.
Each channel is optically isolated from the system backplane and factory-tested to 1500 VDC, helping protect the control system from field-side transients and ground loops. The module draws approximately 50 mA typical (75 mA max) from the 12 VDC local bus and supports up to 150 mA of 24 VDC field-side power per card, depending on configuration.
For procurement and maintenance teams, factory-sealed surplus VE4001S2T2B4 modules reduce risk from prior field installation, terminal wear, backplane connector damage, or unknown operational history.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | EMERSON / DeltaV |
| Model | |
| Associated Part Number | KJ3201X1-BA1 |
| Redundant Counterpart | CE4001S2T2B4 |
| I/O Type | Discrete (Digital) Input |
| Channel Count | 32 channels |
| Isolation | Optical isolation per channel; factory tested to 1500 VDC |
| Field Voltage | 24 VDC nominal (verify per nameplate and system configuration) |
| Local Bus Current (12 VDC) | 50 mA typical, 75 mA max |
| Field-Side Power | Up to 150 mA per card (24 VDC) |
| Operating Temperature | -40 to 70°C (-40 to 158°F) |
| Storage Temperature | -40 to 85°C (-40 to 185°F) |
| Humidity | 5% to 95%, non-condensing |
| Weight | Approx. 2 kg (reference listing data) |
Note: Exact on/off threshold levels, terminal block type, and field wiring details should be confirmed from the nameplate and Emerson datasheet, as VE4001 sub-variants (B1/B2/B3/B4/B5) differ in terminal and wiring configuration.
Key Selling Points & Differentiators
- Genuine DeltaV M-Series 32-channel discrete input module.
- Optical isolation on every channel protects the backplane and controller from field-side faults.
- Suitable for limit switches, relay contacts, valve position feedback, and interlock monitoring.
- Compatible with DeltaV M-Series carriers and traditional I/O architecture.
- Cross-referenced under KJ3201X1-BA1 for easier procurement verification.
- Factory-sealed surplus stock reduces risk from prior field installation or terminal wear.
- Redundant-pair option available as CE4001S2T2B4 for high-availability applications.
Quality Transparency SOP (DYNAMIC GENERATION)
For surplus DeltaV M-Series I/O modules, inspection focuses on physical integrity, label verification, and connector condition:
- Visual QA: Inspect module housing, front terminal area, backplane connector, label, and mounting hardware for impact damage, cracking, or corrosion.
- Anti-static handling: Seal in ESD-safe packaging with humidity indicators before shipment.
- Nameplate verification: Confirm model and associated part number match the order.
- Connector inspection: Check backplane connector pins, front terminal block, and status LEDs for wear, oxidation, or bent contacts.
- Packaging verification: Ensure factory-sealed packaging is intact with no signs of prior field installation.
Technical Risk Avoidance (DYNAMIC GENERATION)
❗ Confirm sub-variant. The is one variant within the VE4001 family. B1/B2/B3/B4/B5 sub-variants may differ in terminal type, field voltage class, or wiring configuration. Verify against the existing card label before replacement.
❗ Do not confuse VE and CE. is a non-redundant module; CE4001S2T2B4 is the redundant-pair variant. Substituting one for the other without system verification can cause redundancy or slot-configuration errors.
❗ Verify field voltage and wiring. Confirm the field-side voltage, common/individual return configuration, and terminal block type match the existing installation.
❗ Check local bus and field power budget. The module draws up to 75 mA from the 12 VDC local bus and up to 150 mA from the 24 VDC field supply per card. Ensure the carrier and power system can support the load.
❗ Confirm DeltaV system compatibility. The VE4001S2T2B4 is an M-Series traditional I/O module. It is not interchangeable with CHARMs, S-Series, or Ethernet I/O cards without architecture verification.
❗ Validate operating environment. Operating temperature range is -40 to 70°C. Ensure the cabinet environment stays within specification.
Buyer’s FAQ
Is this a genuine Emerson DeltaV module?
Yes. The is an original Emerson DeltaV M-Series discrete input module, commonly associated with part number .
What condition is the unit in?
Units are sold as New Original / New Surplus unless otherwise stated. That means unused, factory-sealed inventory rather than field-removed hardware.
Can I use it as a direct replacement?
If your existing installation uses a and the terminal configuration, field voltage, and carrier type match, it should be a like-for-like replacement. Always confirm the nameplate first.
What is the difference between VE4001S2T2B4 and CE4001S2T2B4?
VE denotes a non-redundant module; CE denotes a redundant-pair module. Both belong to the same 4001S2T2B4 family but serve different redundancy configurations.
What does KJ3201X1-BA1 mean?
is the Emerson part number commonly associated with the VE4001S2T2B4 discrete input module.
How many channels does it have?
It provides 32 discrete input channels with optical isolation.
How fast can you ship?
Stock availability determines lead time. For urgent DCS maintenance, request expedited shipping at checkout.
Do you offer a warranty?
Yes. Warranty terms are provided at checkout. For surplus I/O hardware, a clear warranty window helps protect against DOA or hidden inventory damage.
