Product Core Brief
- Model: 1C31222G01
- Brand: Emerson / Westinghouse Ovation
- Series: Ovation DCS Digital Output PMOD
- Core Function: High-power relay output base assembly for Ovation DO E-Mods.
- Product Type: Relay Output PMOD Base Assembly
- Key Specs: 12 relay channels | KUEP-style relay base | Form C / Form X options
- Condition: New Original (New Surplus) / Factory Sealed
Product Introduction (Rotation Engine)
A failed relay output base can lock out pump starts, trip alarms, or block safety permissives even when the logic module is healthy. The EMERSON 1C31222G01 is the Ovation high-power relay output PMOD base that carries the actual relay contacts and field wiring for digital output points. It mates with the Ovation relay output E-Mod to form a complete DO channel set.
This base matters because relay output failures are often mechanical, not just electronic. If the existing base has corroded terminals, cracked relay socket
s, or heat-damaged contacts, swapping only the E-Mod will not restore reliable switching. Replacing with a matching EMERSON 1C31122G01-class high-power DO PMOD keeps the same contact style and wiring footprint, which shortens outage time and avoids unnecessary rewiring.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Emerson / Westinghouse |
| Product Family | Ovation DCS I/O |
| Module Type | Relay Output PMOD Base Assembly (High-Power DO) |
| Model | 1C31222G01 |
| Channels | 12 relay outputs |
| Relay Style | KUEP electromechanical |
| Contact Options | Form C (5A26458G01) or Form X (5A26458G02) |
| Mounting | Ovation I/O base / PMOD assembly |
| Typical Rating | Up to 250 VAC / 150 VDC per relay contact |
| Typical Use | Motor start/stop, alarm relays, permissive outputs, ESD trips |
| Compatibility | Ovation relay output E-Mod assemblies |
| Operating Temperature | Industrial control cabinet environment |
Key Selling Points & Differentiators
- Exact high-power relay PMOD match for Ovation DO points that need electromechanical switching.
- 12-channel base supports dense relay output layouts without changing the wiring panel.
- Compatible with KUEP-style relay kits, including Form C and Form X configurations.
- Factory-sealed surplus units reduce risk of corroded relay sockets, oxidized terminals, or prior arc damage.
- Suitable for power generation, chemical, water/wastewater, and steel DCS relay racks.
- Not recommended as a standalone replacement for the E-Mod logic module; this is the relay output base assembly and must be paired with the correct Ovation DO E-Mod.
Quality Transparency SOP (DYNAMIC GENERATION)
For surplus Ovation relay output PMOD bases, inspection focuses on contact integrity and terminal health:
- Visual QA: Check relay sockets, terminal blocks, PCB traces, and housing for corrosion, burns, or cracked plastic.
- Anti-static handling: Seal in ESD bags with humidity indicators before shipment.
- Relay socket fit test: Verify KUEP relay pins seat cleanly without looseness or carbon tracking.
- Continuity and isolation check: Use a Fluke multimeter to confirm NO/NC/COM paths and verify open-circuit isolation between channels.
- Base-to-E-Mod handshake: Confirm the assembly mates correctly with the matching Ovation relay output E-Mod and reports expected diagnostics.
Technical Risk Avoidance (DYNAMIC GENERATION)
❗ Confirm this is the base, not the E-Mod. The EMERSON 1C31222G01 is the relay output PMOD base. If the fault is in the logic/E-Mod side, replacing only the base will not fix it.
❗ Match the relay kit style. Form C and Form X relay kits are not interchangeable without confirming the wiring and point configuration. Installing the wrong kit can change contact behavior and trip downstream devices.
❗ De-energize field loads before swapping. Relay bases carry live AC/DC outputs. Pulling the assembly under load can arc contacts, damage terminals, or unexpectedly drop a running motor.
❗ Verify terminal numbering after installation. Ovation relay outputs use defined terminal positions for NC/NO/COM. Miswiring one channel can make a healthy relay appear failed.
Buyer’s FAQ
Is this a genuine OEM part?
Yes. The EMERSON 1C31222G01 is an original Ovation-series relay output PMOD base. We supply factory-sealed surplus stock when available.
What condition is it in?
Units are sold as New Original / New Surplus unless otherwise stated. That means unused, factory-sealed inventory rather than field-removed or refurbished hardware.
Does this include the relay output E-Mod?
No. This is the high-power relay output base assembly. The matching Ovation DO E-Mod must be confirmed separately.
Can I use it as a direct replacement?
If your existing point uses the Ovation high-power relay output PMOD with KUEP-style relays, this base should be a like-for-like swap. Confirm the relay kit type and terminal wiring first.
Do you offer a warranty?
Yes. Warranty terms are provided at checkout. For surplus automation parts, a clear warranty window helps protect against DOA or hidden inventory damage.
