Name: TRICONEX 4000187‑320 Termination Assembly - MASSIVE
Brand: Triconex

Description

TRICONEX 4000187‑320 Termination Assembly

Product Overview

The TRICONEX 4000187‑320 is a field termination wiring assembly for Tricon TMR safety instrumented system, serving as the physical interface between Triconex I/O modules and field‑wired safety devices. It converts the compact back‑plane connector of Tricon I/O modules into discrete field wiring terminals, simplifying site cabling, maintenance and troubleshooting for SIS safety loops. This termination unit is widely matched with Tricon 3000 series digital I/O modules for safety‑critical process applications.

TRICONENX 4000187-320

Typical Applications

ESD Emergency Shutdown System: Termination interface for solenoid valves, trip relays and digital field devices in refinery and petrochemical safety interlock loops.
BMS Burner Management System: Field wiring connection for flame detectors, fuel‑gas solenoid output circuits.
Fire & Gas System: Interface for smoke detectors, gas sensors and fire‑triggered safety actuators.
Power‑generation Turbine Protection: Termination for turbine trip digital input & output signals.
Off‑shore & On‑shore Oil‑gas Facilities: Cabinet‑mount signal wiring unit for hazardous‑area SIS control cabinets.
Chemical Process Safety Control: Support digital safety loop wiring for reactor safety interlock circuits.

Technical Specifications

Item	Parameter
Model	4000187‑320
Product Type	I/O Termination Assembly (Wiring Harness Unit)
Matching System	Tricon 3000 series SIS chassis & I/O modules
Connector Type	Special multi‑pin male‑female locking connector for Tricon I/O modules
Field Connection	Screw‑type terminal blocks for discrete field wiring
Signal Type	Digital DI/DO safety signal, 24 VDC nominal
Rated Voltage	30 VDC maximum
Rated Current	2 A per single signal circuit
Isolation	Consistent with paired Tricon I/O module channel‑to‑channel isolation
Operating Temperature	‑40 °C ~ +70 °C
Humidity	5 %‑95 % RH, non‑condensing
Protection Class	IP20 (for cabinet‑internal installation only)
Mechanical Form	Pre‑assembled termination unit with fixed‑length cable
Compatibility	Matches Tricon digital input / digital output I/O modules

Key Features

Purpose‑built Tricon Interface: Factory‑assembled termination assembly, directly mates with Tricon I/O module rear connector, eliminates custom‑crimp cabling errors on site.
Screw Terminal Field Terminals: Clear numbered screw terminals for convenient field instrument wiring, easy for loop inspection and point‑to‑point troubleshooting.
Robust Industrial‑grade Cable: Shielded multi‑conductor cable resists EMI interference in heavy‑industry cabinet environments, protects safety signal integrity.
Quick‑lock Connector Mechanism: Positive locking connector prevents loose contact caused by cabinet vibration; anti‑misplug mechanical keying avoids wrong‑slot installation.
SIL‑3 Loop Compatible: Designed for safety‑instrumented loops conforming to IEC 61508, used together with certified Tricon I/O modules to satisfy SIL 3 application requirements.
Simplified Maintenance: When replacing I/O modules, no need to re‑terminate all field wires; only unlock the back‑side termination connector, greatly shorten maintenance downtime.
Cabinet‑mount Compact Structure: Space‑saving design for standard control cabinet installation, suitable for dense I/O cabinet layout.

TRICONENX 4000187-320

Installation Guidelines

Pre‑installation Check: Verify part number revision; inspect cable insulation, connector pins and terminal blocks for physical damage. Follow ESD anti‑static procedures during handling.
Connector Mating: Align the keyed multi‑pin connector with the rear port of target Tricon I/O module, push fully home and engage locking latch to secure connection.
Field Wiring Operation: Route field instrument cables to the screw terminal side. Assign wiring strictly following project I/O point list; tighten terminal screws with specified torque. Separate safety signal cables from high‑power motor / VFD cables to reduce EMI coupling.
Mechanical Arrangement: Fix the termination assembly and cable inside control cabinet; avoid sharp bending, pulling or squeezing the pre‑fabricated cable harness. Do not install outside cabinet or in hazardous field zones.
Loop Commissioning: After full wiring completion, perform continuity test and insulation resistance check for each safety loop. Confirm signal transmission before putting SIS system online.
Environment Requirements: Install within indoor control cabinet; keep away from heat source, moisture and corrosive gas; maintain operating temperature within‑40 °C ~ +70 °C.