Emerson 1C31223G01 Product Description (Ovation 16-channel G2R Relay Base)

1C31223G01 is a 16-channel G2R relay output base of Emerson's Ovation DCS system. It belongs to the 1C series I/O subsystem and is specifically used with 1C31219G01/G04 relay drive modules, providing high-density and medium-power relay output circuits for controlling on-site equipment such as solenoid valves, contactors, and small motors. It is commonly used in process industries such as power, oil and gas, and chemical. 

I. Basic Information

Model: 1C31223G01

Brand: Emerson (formerly Westinghouse)

Series: Ovation DCS 1C Series

Type: 16-channel G2R Relay Output Base

Compatible Driver Module: 1C31219G01 / 1C31219G04

Installation Location: Ovation Standard 4-slot / 2-slot I/O Base (1C31206G01 / 1C31205G01)

Relay Type: G2R Series Power Relay

Channel Number: 16 Independent Outputs

Origin: United States

Warranty: 12 months (Original Factory)

Protection: IP20 (Body)

II. Core Functions and Features

1) 16-channel High-density G2R Relay Compatibility

16 independent G2R relay slots, one slot corresponding to one relay, matching 16 channels of 1C31219G01/G04 drivers exactly.

G2R Relay Contact Specifications: AC 250V / 10A, DC 30V / 10A, suitable for medium-power loads.

Relay Plug-and-Play Installation, Tool-Free Replacement, Quick Maintenance.

2) Electrical Isolation of Drive and Load Side + Independent Protection for Each Channel

Isolation of 2500V AC between drive side (connected to the module) and load side (on-site wiring) to suppress strong electric interference from entering the DCS.

Each channel comes with an independent replaceable fuse 1.0A / 250V AC, quickly melting in case of short circuit / overload, protecting the base and driver module.

Special fuse compartment on the base side, no need to remove the base to replace.

3) Status Indication and Diagnosis

Each channel has an LED status light: On when the relay is engaged, off when it is disengaged, intuitive for circuit status determination.

Contact status can be uploaded to the Ovation system through the driver module, supporting remote monitoring and fault location.

4) Industrial-grade Environmental Tolerance

Operating Temperature: -20℃ ~ +60℃; Storage: -40℃ ~ +85℃.

Relative Humidity: 5%–95% RH (No Condensation).

Vibration Resistance: 5g; Shock Resistance: 30g; Pollution Grade: ISA-S71.04 Class G3.

Flame-retardant ABS + Metal Reinforced Frame, suitable for power plants, turbine cabins, outdoor cabinets, etc., harsh environments.

5) Compatibility and Maintenance

Fully compatible: 1C31219G01 (Standard Version), 1C31219G04 (Enhanced Version), can be directly replaced without rewiring.

Support for Hot Swap of Driver Modules, online replacement does not affect other circuits.

Mixed insertion with 1C Series I/O (DI/DO/AI/AO), flexible configuration of the system.

III. Technical Specifications (Key Parameters)

Channels: 16 (G2R Relays)

Compatible Driver: 24V DC (from 1C31219 module)

Contact Rating: AC 250V/10A, DC 30V/10A

Each Channel Fuse: 1.0A / 250V AC (Fast Fuse, Replaceable)

Isolation Voltage: 2500V AC (Drive - Load, Channel-to-Channel)

Response Time: ≤10ms (Typical)

Terminal: Suitable for 1.5–4mm² Copper Cable, Screw Terminal

Size: Approximately 220×140×35mm

Weight: Approximately 0.35kg

Certifications: CE, UL, CSA, RoHS

IV. Typical Applications

Power Generation (Thermal Power / Gas Power)

Boilers: Blow-off Valve, Sewage Valve, Small Fans, Alarm Light

Steam Turbines: Drainage Electromagnetic Valve, Auxiliary Oil Pump, On-site Indicator Light

Auxiliary Machinery: Water Treatment Additive Pump, Coal Conveyor Auxiliary Motor, Small De-Sulfurization and De-Nitrogenization Blanking Plate

Oil and Chemicals Small and medium-sized solenoid valves, emergency shut-off valves (auxiliary), flare ignition circuit

Pump / fan control, safety interlock output, on-site alarm equipment Others

Water treatment: Chlorine injection pump, discharge valve, aeration fan

Test bench / Factory automation: Actuator, solenoid valve, alarm circuit

V. Complementary List (Common Combinations)

Drive module: 1C31219G01 / 1C31219G04

Relay: G2R series (Original equipment manufacturer's supply)

Installation base: 1C31206G01 (4 slots) / 1C31205G01 (2 slots)

Spares: 1.0A/250V backup fuse, cold-pressed terminal, label paper