



The Emerson VE4001S4T2B2 is a DeltaV Series 2 discrete input module designed for high-voltage AC signal acquisition in industrial automation systems. It is used to monitor ON/OFF status signals from field devices such as breaker auxiliary contacts, relays, limit switches, motor starters, and alarm circuits operating in 230 V AC environments.
Built for harsh electrical conditions, this module provides stable signal detection, strong channel isolation, and integrated diagnostics, ensuring reliable operation in power systems and heavy industrial applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Emerson |
| Model | VE4001S4T2B2 |
| Associated Module | KJ3201X1-BA1 |
| Product Type | Discrete Input Module (DI) |
| System Platform | DeltaV Series 2 I/O |
| Input Channels | 8 channels |
| Input Type | 230 V AC digital input |
| Signal Type | Dry contact / powered AC status signals |
| Input Voltage Range | 180–264 V AC |
| Frequency | 50/60 Hz |
| Response Time | ≤ 10 ms (typical) |
| Isolation | Channel-to-system galvanic isolation |
| Diagnostics | Channel status monitoring and fault detection |
| Wiring Type | Industrial terminal interface |
| Mounting Method | DeltaV I/O carrier mounted |
| Operating Temperature | -40°C to +70°C |
| Humidity Range | 5%–95% non-condensing |
| EMC Protection | Industrial-grade noise immunity |
Physical Dimensions & Weight
| Parameter | Specification |
|---|---|
| Dimensions (H × W × D) | 105 × 125 × 42 mm |
| Length × Width × Height | Included in above format |
| Weight | Approx. 0.30–0.45 kg |
Recommended Related Models
The VE4001S4T2B2 is commonly deployed together with:
- Emerson VE3006 MD Plus Controller Module
- Emerson VE3008 MQ Controller Module
- Emerson VE4003S2B1 Analog Input Module
- Emerson VE4005S2B1 Analog Output Module
- Emerson VE4033S2B1 Redundant I/O Module
- Emerson VE4001S4T1B1 / VE4001S4T1B2 High-Voltage DI Variants
- Emerson VE4001S3T2B2 120 V AC Input Module
- Emerson VE4001S2T2B1 24 V DC Input Module
- Emerson KJ3203X1-BA1 Analog Output Module
- Emerson KJ3241X1-BA1 Communication Interface Module
Popular Emerson DeltaV Modules
Common DeltaV Series 2 modules include:
- VE3006 MD Plus Controller
- VE3008 MQ Controller
- VE4003S2B1 Analog Input Module
- VE4005S2B1 Analog Output Module
- VE4001S4T2B2 High-Voltage Input Module
- VE4001S2T2B1 Low-Voltage Input Module
- VE4001S2T2B4 / VE4001S2T2B5 Variants
- VE4033S2B1 Redundant I/O Module
- KJ3201X1-BA1 Discrete Input Card (8-channel 24V DC variant)