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3725

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3725
May 18, 2026

3725

TRICONEX 3725 is a 16‑channel digital output module with triple modular redundancy (TMR) for Tricon V9/V10/V11 SIS safety systems. It provides 24VDC / 2A per channel, fail‑safe operation, and SIL3 compliance for ESD, fire & gas, and critical safety interlocks.

Description

3725.jpg

TRICONEX 3725

16‑Channel 24VDC TMR Digital Output Module (SIL3)

English Specification (No Images)

1. General Description

TRICONEX 3725 is a 16‑channel digital output module with triple modular redundancy (TMR) for Tricon V9/V10/V11 SIS safety systems. It provides 24VDC / 2A per channel, fail‑safe operation, and SIL3 compliance for ESD, fire & gas, and critical safety interlocks.

2. Basic Information

  • Model: 3725

  • Type: 16‑Channel Digital Output (TMR)

  • Output: 24VDC, 2A max per channel

  • System Compatibility: Tricon V9 / V10 / V11

  • Safety Level: SIL3 (IEC 61508 / IEC 61511)

  • Certifications: TUV, FM, CSA, ATEX/IECEx

  • Architecture: TMR, 2oo3 voting

  • Status: In production & supported

3. Key Features

  • 16 output channels, 24VDC / 2A (sink/source configurable)

  • TMR fault tolerance, 2oo3 voting logic

  • Fast response time: <3ms

  • Fail‑safe de‑energize on fault

  • Channel‑to‑ground isolation: 1,500VDC

  • Diagnostics: open load, short circuit, overcurrent, TMR mismatch

  • Hot‑swappable; online replacement

  • Overload protection: electronic current limiting

  • LED status per channel

4. Technical Parameters

4.1 Digital Output

  • Voltage: 24VDC nominal (18–30VDC range)

  • Current: 2A max per channel, 8A max per module

  • Channels: 16, isolated, sink/source configurable

  • Response time: <3ms

  • On‑state resistance: <0.5Ω

  • Off‑state leakage: <100μA

4.2 Safety & Isolation

  • Voting: 2‑out‑of‑3 (2oo3)

  • Fault coverage: ≥99%

  • Isolation: 1,500VDC (channel–ground)

  • Diagnostics: open load, short circuit, overcurrent, TMR mismatch

4.3 Environmental

  • Operating temp: –40°C to +70°C

  • Storage temp: –40°C to +85°C

  • Humidity: 5%–95%, non‑condensing

  • Vibration: 5–200Hz, 2G

4.4 Power & Mechanical

  • Backplane: 5VDC

  • Power consumption: ≤18W

  • Dimensions: 178 × 127 × 63mm

  • Weight: ~0.8kg

5. Function

Outputs 24VDC on‑off signals to solenoids, relays, valves, motor starters, and alarm beacons; TMR voting ensures fault‑free control; de‑energizes on fault for fail‑safe ESD/SIS operation.

6. LED Indicators

  • PWR (Green): Power OK

  • RUN (Green): Normal operation

  • FAULT (Red): Module/channel fault

  • CH0–CH15 (Yellow): Channel active

7. Installation & Configuration

  1. Insert into Tricon I/O slots

  2. Wire 24VDC field devices to terminal base

  3. Configure sink/source and diagnostics via TriStation 1131

  4. Verify LEDs and output status

8. Typical Applications

  • ESD emergency shutdown valves (24VDC solenoids)

  • Fire & gas suppression system triggers

  • Critical pump/trip valve interlocks

  • Alarm beacons, horns, and annunciators

  • Oil/gas, chemical, power plant safety instrumentation

9. Maintenance

  • Hot swap faulty modules online

  • Inspect wiring/terminals annually

  • Test solenoid/valve loads periodically

  • Review fault/SOE logs

10. Compatibility

  • Terminal base: 3725TB series

  • Software: TriStation 1131

  • Compatible processors: 3008, 3005 series


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