Product Description
Triconex 3503N Digital Input Module
- Manufacturer: Triconex (Schneider Electric)
- Series: Tricon
- Model/Part Number: 3503N
- Description: 24 VAC/VDC TMR Digital Input Module for Tricon systems
Overview
The Triconex 3503N is a Digital Input Module designed for use in Triconex’s Tricon safety instrumented systems (SIS), part of Schneider Electric’s portfolio. It processes digital input signals from field devices, such as switches, relays
Technical Specifications
| Specification | Details |
|---|---|
| Model | 3503N |
| Series | Tricon |
| Type | TMR Digital Input Module |
| Function | Processes digital input signals from field devices |
| Input Channels | 32, non-commoned, individually isolated |
| Nominal Input Voltage | 24 VAC/VDC |
| Input Voltage Range | 20–42.5 VAC/VDC |
| Frequency Range | DC or 47–63 Hz |
| Maximum Voltage | 42.5 VAC/VDC |
| Switching Level | Off to On: >16 VAC/VDC On to Off: <6 VAC/VDC |
| Nominal Turn-On Current | 4–6 mA |
| Typical Hysteresis | 4 VAC/VDC |
| Input Delay | Off to On: <10 ms On to Off: <15 ms |
| Point Isolation | 1,500 VDC / 2,500 VDC (channel-to-channel and channel-to-backplane) |
| Nominal Input Impedance | >4 kΩ |
| Nominal Field Power Load | 0.2 W per point at maximum field voltage |
| Diagnostic Indicators | 1 per point (Input Status), Module Status (PASS, FAULT, ACTIVE) |
| Connectors | Requires external termination panel (e.g., 3000580-110) with terminal blocks |
| Compatible Modules | Triconex termination panels (e.g., 3000580-110) |
| Compatibility | Tricon systems, integrates with Triconex Main Processors (e.g., 3008) and TriStation 1131 software |
| Mounting | Plugs into Tricon chassis |
| Power Supply | Supplied by Tricon chassis backplane (typically 24 VDC) |
| Power Consumption | Approx. 5–7 W |
| Operating Temperature | -40°C to +70°C (-40°F to +158°F) |
| Storage Temperature | -40°C to +85°C (-40°F to +185°F) |
| Relative Humidity | 5% to 95% (non-condensing) |
| Environmental Protection | Designed for harsh industrial environments; EMI/RFI shielding |
| Dimensions | Approx. 49 x 45.3 x 6.8 cm (19.3 x 17.8 x 2.7 in) |
| Weight | Approx. 2.6 kg (5.7 lbs) |
| Certifications | TÜV-certified for SIL 3 (IEC 61508), CE, UL, CSA, marine-certified, nuclear 1E-certified |
| Manual | Tricon Planning and Installation Guide |