TRICONEX 3636R 32-Channel Normally Open Dry Contact Relay Output Module

Manufacturer Background: TRICONEX belongs to Schneider Electric, core I/O accessory of Tricon triple modular redundant safety instrumented system (SIS). Model 3636R is a non-triplicated relay output module equipped with 32 independent normally open dry contact relays, specially used for driving field solenoid valves, alarm horns, contactors and other safety actuators in petrochemical, power, oil & gas ESD emergency shutdown and turbomachinery protection systems. It matches Tricon V9/V10 safety mainframe, supports hot swap, passed IEC61508/IEC61511 SIL3 functional safety certification, built-in complete channel self-diagnosis and fault detection function.

Part Number Breakdown: TRICONEX 3636R - TRICONEX: Safety control system brand under Schneider - 3636: Base model of 32-point relay digital output module - R: Rugged industrial wide-temperature variant, conformal coated PCB, extended operating temperature range (-40℃~+70℃) Comparative models: 3636T (standard temperature 0~60℃ non-coated relay output module), 3511E (TMR triplicated solid-state DO module)

Product Type: Single-slot plug-in relay output card for Tricon rack, non-triplicated independent relay design, 32 channels of NO dry contact relays; each channel adopts SPDT single-pole double-throw dry contact, no internal power supply on the field side, supports AC/DC mixed load switching; built-in channel open/short circuit diagnosis circuit, front panel single-point LED status indication, global PASS/FAULT running indicator, hot-swappable design, suitable for safety loop final actuator control output of SIS systems.

Matching System Components: Tricon V9 / V10 safety chassis; TMR redundant main processor module (3008 / 3009 series); Tricon redundant system power supply; TriStation safety configuration programming software; field terminal wiring base; solenoid valves, alarm lights, motor contactors; safety cabinet wiring terminals; module extraction handles, spare replacement modules.

Core Hardware Overview: 1. Relay Output Channel Specifications - Channel quantity: 32 independent normally open dry contact relays, 4 groups × 8 channels - Relay contact type: SPDT single-pole double-throw dry contact - Rated switching capacity: Max 125VAC / 125VDC, single channel 5A resistive load - Contact mechanical life: ≥10 million times; electrical life ≥100,000 times at rated load - Field side isolation: Full galvanic isolation between internal logic circuit and field load contacts 2. Diagnosis & Indication Circuit - Single-point LED: ON = relay closed output status - Global LED indicators: PASS (module normal running), FAULT (hardware/channel fault alarm) - Continuous self-diagnosis: Detect relay coil open circuit, contact adhesion, channel short-circuit fault, upload fault codes to main CPU and record in system log 3. Electrical & Mechanical Parameters - Backplane power supply: 24VDC from Tricon rack backplane - Module total power consumption: ≤12W - Signal response delay: ≤15ms - Operating temperature (3636R rugged version): -40℃ ~ +70℃; standard 3636T: 0℃ ~ +60℃ - Storage temperature: -55℃ ~ +85℃ - Humidity: 5%~95% RH non-condensing, G3 industrial anti-corrosion coating - Dimensions: 406mm × 398mm × 22mm; weight: 2.42kg - Installation: Single slot plug-in for Tricon V9/V10 rack, hot swap supported 4. Safety Certification - Functional safety: IEC61508 / IEC61511 SIL3 certified by TÜV - Industrial certificates: CE, UL, ATEX Zone 2 hazardous area applicable - MTBF: Up to 186 years under rated operating conditions

1. Product Overview

TRICONEX 3636R is a rugged wide-temperature 32-channel dry contact relay output module of Tricon SIS safety system, used to convert internal safety logic signals into physical switching actions to drive field safety actuators. It adopts non-triplicated independent relay design with 32 isolated SPDT dry contacts, which can switch AC and DC loads up to 125V, widely matched with ESD emergency shutdown solenoid valves, boiler flame alarm indicators, compressor trip contactors and other field equipment in petrochemical, power and offshore platforms. The suffix R represents a rugged enhanced version with full PCB conformal coating, supporting ultra-wide operating temperature from -40℃ to +70℃, adapting to cold northern power plants, outdoor explosion-proof cabinets and other harsh industrial environments. Each relay channel is equipped with a dedicated diagnosis circuit, which can automatically detect coil open circuit, contact sticking and short-circuit hidden faults, trigger front panel fault indicator and upload alarm information to the safety logic solver, avoiding safety loop failure caused by actuator circuit failure. Single-slot hot-swappable plug-in design realizes online maintenance without shutting down the whole safety rack, and each channel is equipped with independent LED to display output state for convenient field troubleshooting. It has passed TÜV SIL3 safety certification, fully meets the functional safety requirements of high-risk industrial safety instrumented systems, and is the standard spare replacement output module for old Tricon safety control system renovation projects.

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