Description
WESTINGHOUSE 1C31238H01 is a high-reliability digital input (DI) module designed for Ovation DCS, specialized in accurate discrete signal acquisition and stable transmission in industrial automation systems across power, manufacturing, and petrochemical sectors. WESTINGHOUSE 1C31238H01 features a rugged UL94-V0 flame-retardant housing, withstanding extreme temperatures (-25°C to +85°C) and electromagnetic interference in harsh industrial environments. WESTINGHOUSE 1C31238H01 supports 24 input channels for switching signal detection, capturing device statuses (e.g., emergency stop buttons, position switches) and feeding data to the central control system for real-time decision-making. WESTINGHOUSE 1C31238H01 offers flexible DIN rail or screw mounting, integrating seamlessly with PLCs and remote I/O systems while delivering fast response and low contact resistance. Whether deployed in automated production lines or critical process control loops, WESTINGHOUSE 1C31238H01 ensures reliable signal conversion and long-term operational stability.
Technical Parameters WESTINGHOUSE 1C31238H01
| Parameter Item | Parameter Value |
|---|---|
| Product Model | WESTINGHOUSE 1C31238H01 |
| Module Type | Ovation Digital Input (DI) Module |
| Input Channels | 24 discrete input channels |
| Rated Voltage | 250V AC/DC |
| Rated Current | 10A |
| Contact Resistance | ≤15mΩ |
| Insulation Resistance | ≥100MΩ |
| Withstand Voltage | 1500V AC (1 minute) |
| Operating Temperature | -25°C to +85°C |
| Protection Level | IP20 |
| Housing Material | UL94-V0 flame-retardant engineering plastic |
| Mounting Method | DIN rail mounting / screw fixing |
| Plug Life | ≥500 times |
| Dimensions | 23mm×100mm×120mm |
| Weight | ~0.4kg |
| Certifications | RoHS compliant, industrial safety standards |
| Key Function | Discrete signal acquisition; high-temperature resistance; EMI immunity |
Advantages and Features WESTINGHOUSE 1C31238H01
- Rugged Industrial Design: WESTINGHOUSE 1C31238H01’s flame-retardant housing and wide operating temperature range (-25°C to +85°C) ensure stable performance in high-humidity, high-vibration, and EMI-rich environments.
- High-Density & Low Loss: 24 input channels in a compact form factor maximize I/O density, while ≤15mΩ contact resistance minimizes energy loss during signal transmission.
- Strong Insulation & Safety: 1500V AC withstand voltage and ≥100MΩ insulation resistance prevent short circuits and electric arcs, enhancing system safety.
- Flexible Deployment: Supports both DIN rail and screw mounting, adapting to dense wiring scenarios in control cabinets and reducing installation space.
- Seamless System Compatibility: Integrates with mainstream PLCs, DCS, and remote I/O modules, facilitating quick commissioning and system expansion.
Application Cases
- Automated Packaging Production Line: A food packaging plant deployed WESTINGHOUSE 1C31238H01 to detect workpiece positioning, conveyor speed, and emergency stop signals. The module’s EMI immunity resisted interference from nearby motors, improving line uptime by 22% and reducing false alarms.
- Petrochemical Pump Control System: A refinery used WESTINGHOUSE 1C31238H01 to monitor pump start/stop statuses and valve position feedback. Its high insulation resistance and voltage withstand capability ensured safe operation in flammable and explosive environments, reducing unplanned downtime by 18%.
- Metallurgical Equipment Monitoring: A steel mill integrated WESTINGHOUSE 1C31238H01 into its rolling mill control system to capture roller position and temperature switch signals. The module’s high-temperature resistance (-25°C to +85°C) withstood on-site heat radiation, maintaining signal accuracy for 24/7 operation.
Competitor Comparison
| Comparison Item | WESTINGHOUSE 1C31238H01 | Honeywell 8C-TDIL08 DI Module | Emerson DeltaV DI 16 Channel Module |
|---|---|---|---|
| Channel Count | 24 | 8 | 16 |
| Rated Current | 10A | 5A | 8A |
| Operating Temperature | -25°C to +85°C | -20°C to +70°C | -20°C to +70°C |
| Contact Resistance | ≤15mΩ | ≤20mΩ | ≤18mΩ |
| Mounting Flexibility | DIN rail + screw | Screw-only | DIN rail-only |
| Estimated Price (USD) | ~$650 | ~$320 | ~$500 |
Selection Suggestions
- Choose WESTINGHOUSE 1C31238H01 for Ovation DCS needing high-density (24-channel) digital input with rugged environmental adaptability.
- Opt for WESTINGHOUSE 1C31238H01 in petrochemical, metallurgical, or manufacturing industries where high temperature, EMI, or voltage fluctuations are present.
- Select WESTINGHOUSE 1C31238H01 when flexible mounting (DIN rail/screw) and high current capacity (10A) are required for heavy-duty field devices.
- Use WESTINGHOUSE 1C31238H01 for system upgrades or new installations requiring low energy loss and strong insulation safety.
Precautions
- Install WESTINGHOUSE 1C31238H01 in a well-ventilated control cabinet to avoid overheating, ensuring operating temperature stays within -25°C to +85°C.
- Verify field device voltage/current does not exceed the module’s 250V/10A ratings to prevent contact damage or signal distortion.
- Use shielded cables for wiring to enhance EMI immunity, especially in environments with nearby high-power motors or transformers.
- Follow ESD protection protocols when handling the module, particularly during plug-in operations, to avoid static damage to internal components.
- Regularly inspect terminal connections for tightness and oxidation, as loose contacts can cause signal loss or increased contact resistance.
- Avoid installing WESTINGHOUSE 1C31238H01 near corrosive gases or liquids, as this may degrade the flame-retardant housing and insulation performance.

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Brand new✔ In stock ✔ Fast shipping✔
PLC : Allen Bradley , Siemens MOORE, GE FANUC , Schneider
DCS : ABB ,Honeywell, Invensys Triconex , Foxboro , Ovation,YOKOGAWA, Woodword, HIMA
TSI : Triconex , HIMA , Bently Nevada , ICS Triplex
Complete service we offer
Payment: T/T
Delivery: 1-2 days
Shipment: DHL UPS FedEx, etc
After-sales service: Yes, 24/7 hours
Email: sales@plcfcs.com
Phone:+86 15343416922
Wechat:+86 15343416922
PLC : Allen Bradley , Siemens MOORE, GE FANUC , Schneider
DCS : ABB ,Honeywell, Invensys Triconex , Foxboro , Ovation,YOKOGAWA, Woodword, HIMA
TSI : Triconex , HIMA , Bently Nevada , ICS Triplex
Complete service we offer
Payment: T/T
Delivery: 1-2 days
Shipment: DHL UPS FedEx, etc
After-sales service: Yes, 24/7 hours




Email: jiedong@sxrszdh.com
Phone / Wechat:+86 15340683922
Wechat:+86 15343416922