Emerson R-S108V01-16-24VDC-C10-1 16-Channel Relay Terminal Module

The R-S108V01-16-24VDC-C10-1 is a 16-channel relay terminal block specifically designed for Emerson Westinghouse Ovation DCS systems. It features 16 independent 24VDC drive miniature relays and connects to system I/O cards via DB37 male connectors, enabling isolated switching between controller low-voltage signals and field high-voltage loads. The integrated green screw terminal block on the board allows for independent wiring of each circuit, effectively isolating high and low voltage circuits, avoiding electromagnetic interference from motors and frequency converters, and ensuring stable operation of the DCS system output circuit.

The module uses a standard DIN rail snap-on mounting system. The entire board is marked with channel numbers JD01~JD16. The relays are SPST-NO normally open contacts, and C10 represents a 10A contact capacity. This module is now discontinued by the original manufacturer and is a core maintenance spare part for aging Ovation control systems in the thermal power, chemical, and paper industries. Replacement eliminates the need for re-laying field cables, significantly reducing unit downtime for maintenance.

Main Specifications

• Brand: Emerson Westinghouse; Model: R-S108V01-16-24VDC-C10-1; Series: Ovation DCS
• Channel Quantity: 16 independent relay output channels; Drive Voltage: 24VDC coil
• Relay Contact: SPST Normally Open; Rated Load: 10A @250VAC, Max 2500VA switching power
• Interface: DB37 male backplane connector + multi-group screw terminal blocks for field wiring
• Isolation: Galvanic isolation between DCS signal side and field power side, anti-ground loop interference
• Operating Temp: -40℃ ~ +70℃; Storage Temp: -40℃ ~ +85℃; CE & UL industrial certification
• Mounting: Standard 35mm DIN rail; Flame retardant PCB with conformal coating
• Matching Hardware: Ovation analog/digital I/O modules, Ovation controller racks, field valves & pump actuators

Core Functions

• Convert low-voltage logic signals from Ovation DCS I/O cards into high-power switching signals to control on-site pumps, valves and auxiliary equipment.
• 16-channel independent isolation design prevents field circuit short-circuit or surge from damaging the core DCS controller card, improving system safety margin.
• Detachable screw terminal blocks separate internal DCS wiring and field wiring; retain all field cables during module replacement without re-wiring.
• Built-in EMC filtering circuit suppresses electromagnetic radiation from high-power motors and inverters, eliminating signal jitter and misoperation faults.
• Each relay with visible status indicator light for quick on-site troubleshooting of broken coils or open/short load circuits.
• Unified Ovation backplane electrical definition supports plug-and-play replacement, no modification of DCS control logic or channel configuration required.

Application Scenarios

• Relay terminal board spare replacement for Emerson Ovation DCS control cabinets in thermal power plants and combined cycle power stations.
• Isolation output switching spare parts for petrochemical refineries, natural gas pipeline stations and chemical continuous reaction production lines.
• Maintenance backup inventory for pulp & paper mills, metallurgical rolling lines and industrial self-owned power station automation control rooms.
• Matching signal isolation accessory cooperating with Ovation digital output modules and on-site valve/pump actuator assemblies.
• Retrofit replacement components for aging DCS systems with relay coil burnout, contact ablation and unisolated signal interference faults.

• Global aftermarket spare stock for process industry maintenance teams maintaining legacy Westinghouse Ovation distributed control hardware.