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The Triconex 2752 provides precise 5V DC current sourcing for field wiring termination in Triconex safety instrumented systems. This connector interface module occupies two chassis slots and delivers two independently adjustable current outputs.

Key Technical Specifications

Adjustable Current Sourcing Capability

The Triconex 2752 features two independent 5V DC outputs with continuously adjustable current from 0 to 250 mA. Operators set each channel precisely using onboard potentiometers to match specific field device requirements.

This adjustability accommodates various termination applications without external current-limiting resistors. Engineers optimize current delivery for each connected device while maintaining consistent 5V potential.

Field Wiring Termination Capacity

Each Connector Interface Module terminates up to 16 individual field wires within a compact two-slot footprint. This termination density maximizes chassis utilization in space-constrained safety system installations.

The 2752 accepts standard Triconex field wiring harnesses with positive-locking connectors. These connectors resist vibration-induced disconnection in industrial environments.

Mechanical Design and Form Factor

Measuring just 4.7 x 2.1 x 0.7 inches and weighing only 0.3 pounds, this module occupies minimal chassis space. Its low-profile design allows installation adjacent to other safety modules without airflow obstruction.

The rugged thermoplastic enclosure withstands continuous industrial service. All field connections utilize corrosion-resistant gold-plated contacts for signal integrity.

Hot-Swappable Field Replacement

The Triconex 2752 functions as a field-replaceable unit supporting online replacement without safety system shutdown. Technicians remove a failed module and install a replacement while the safety system maintains continuous process protection.

This hot-swap capability proves essential for high-availability applications. Facilities avoid costly production interruptions for routine maintenance or unexpected module failures.

Output Status Indication

Two front-panel LED indicators provide immediate visual confirmation of output status. A steady green LED illuminates when the corresponding channel delivers current within specification.

An unlit LED signals output failure, open circuit condition, or module power loss. Maintenance personnel instantly identify fault locations without diagnostic software.

System Integration with Triconex Platform

Schneider Electric engineered the 2752 specifically for Triconex Triple Modular Redundant safety systems. The module interfaces directly with Triconex main processors and I/O modules through the passive chassis backplane.

Compatible chassis include Tricon and Trident models across all generations. The module requires no configuration software or firmware loading.

Application Versatility

Safety instrumented systems deploy the Triconex 2752 across numerous termination applications. Typical implementations include 5V current sourcing for emergency shutdown pushbuttons, limit switch wetting, and proximity sensor excitation.

The adjustable current range accommodates both dry contact monitoring and active electronic sensor interfaces. Engineers set precise current levels for optimal contact wetting without excessive power dissipation.

SIL3 Certification Compliance

As an integral Triconex system component, the 2752 complies with TÜV SIL3 certification requirements. The module undergoes same rigorous design validation and manufacturing quality processes as Triconex safety processors.

This certification eliminates additional validation effort during safety system commissioning. End users reference existing Triconex SIL3 approval documentation.

Current Adjustment Procedure

Each output channel includes an accessible potentiometer for continuous current adjustment. Technicians connect an ammeter in series with the field circuit and rotate the adjustment screw to achieve desired current between 0 and 250 mA.

The module maintains stable output current regardless of input voltage variations or ambient temperature changes. This regulation ensures consistent field device performance.

Reliability and Service Life

Triconex designs the 2752 for continuous duty with mean time between failures exceeding 500,000 hours. All components operate well below rated maximums for extended service life.

The module contains no electrolytic capacitors or other wear-limited components. Facilities typically operate these modules for decades without performance degradation.

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