Product Details:

The Emerson 1173C16 is a rack-mounted relay output module compatible with Emerson 1170 series machinery protection systems. This relay module receives fault logic signals from vibration, displacement and speed monitor boards in the rack, and drives isolated relay contacts to output hard-wired alarm and emergency trip signals. It can directly trigger safety interlock circuits, solenoid valves and trip relays to shut down rotating machinery when abnormal vibration or rotor displacement exceeds preset limits, protecting turbines, compressors and pumps from severe damage. The module includes built-in relay diagnostic circuits to detect coil failure, open or shorted contact circuits and send fault alerts to the host monitoring system. Noise suppression components are integrated to prevent false relay triggering caused by heavy electromagnetic interference, oil mist and vibration in power and oil & gas industrial sites. It adopts industrial-grade relay components and compact board layout, maintaining stable performance under long-cycle operation in harsh field environments. It is designed for standard rack slot installation inside the monitor cabinet, supporting quick replacement during maintenance and reducing equipment downtime. The Emerson 1173C16 cooperates with signal monitor modules, power supply units and backplane assemblies to build complete rotating machinery protection systems. It is widely used in steam turbines, gas turbines, centrifugal compressors and large fans in power plants, chemical and oil & gas facilities, delivering reliable safety trip control and minimizing unexpected production shutdown risks.

Specifications

Brand: Emerson

Model: 1173C16

Product Type: Relay Output Module

Function: Alarm and trip relay contact output, relay channel self-diagnosis, safety interlock control

Application: Rotating machinery protection system, steam turbine, gas turbine, centrifugal compressor

Feature: Anti-interference, isolated relay output, rack slot mounting, contact health diagnosis