Description
Product Profile: High-Voltage Input Module
This is the original Invensys Triconex 3501E Digital Input Module. It is built for demanding safety systems. The module reliably reads 32 high-voltage signals. Each input point is fully isolated from the others. You get secure and accurate data for your critical processes.
Technical Details & Core Specifications
- Brand & Model: Invensys Triconex 3501E
- Module Function: Digital Input (DI), TMR Type
- Input Channels: 32 Points, Non-Commoned
- Operational Voltage: 115 VAC or VDC
- Working Range: 90 to 155 VAC/VDC
- Max Safe Voltage: 155 VAC/VDC
- Input Frequency: DC or 47-63 Hz
- Turn-On Threshold: Above 86 VAC/VDC
- Turn-Off Threshold: Below 28 VAC/VDC
- Input Impedance: Greater than 8.5 KΩ
- Isolation Rating: 1500 VDC / 2500 VDC
- Response Time: ON < 8ms, OFF < 15ms
- Power Load: Approx. 1.5W to 2.9W per point
- Diagnostic Lights: Yes, Per Point & Module Status
- Module Color: Red
Top Features & Reasons to Choose
- High Voltage Ready: Directly connects to 115V field signals without extra converters.
- Full Point Isolation: Prevents noise and fault propagation between channels.
- Clear Diagnostics: LEDs show the status of every single input point.
- TMR Architecture: Designed for maximum reliability in triple-redundant safety systems.
- Fast & Accurate: Quick response time ensures precise system monitoring.
What You Get & Our Promise
- One genuine Invensys Triconex 3501E module.
- A strong 12-month product warranty.
- Fast delivery options: FedEx, UPS, or DHL.
- Complete shipping tracking for your peace of mind.
Frequently Asked Questions (FAQ)
What does “non-commoned” mean for wiring?
Each input channel is separate. You must connect both wires for every sensor or switch.
Can I mix AC and DC signals on one module?
No. The entire Triconex 3501E module must be set for either AC or DC operation.
Why is the turn-off voltage so much lower than turn-on?
This is called hysteresis. It prevents rapid on/off chattering if the signal voltage is near the threshold.
How are the diagnostic LEDs useful?
They let you see which field devices are active at a glance. This speeds up troubleshooting significantly.
Any installation tip for long cable runs?
Use twisted pair cables. This reduces electrical noise that can cause false readings on sensitive inputs.
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