Process Control Solution – METSO IOP351 | Relay Output Module | I/O Series
Where This Product Is Used
The METSO IOP351 Relay Output Module is deployed in demanding process automation environments where reliable discrete output switching is critical. Typical application sites include:
- Oil & Gas Refineries – Actuator control, valve open/close commands, and ESD (Emergency Shutdown) relay outputs
- Chemical & Petrochemical Plants – Pump start/stop, motor control center (MCC) interface, and interlock relay switching
- Power Generation Facilities – Turbine auxiliary control, breaker trip/close commands, and alarm relay outputs
- Pulp & Paper Mills – Machine drive control, conveyor start/stop, and process interlock relay outputs
- Water & Wastewater Treatment – Pump station control, dosing system relay outputs, and SCADA-integrated switching
- Mining & Minerals Processing – Crusher control, conveyor relay outputs, and safety interlock systems
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number / SKU | IOP351 |
| Manufacturer | METSO |
| Module Type | Relay Output Module |
| Series | I/O Module Series (Neles / Metso DNA) |
| Output Type | Relay (Dry Contact) |
| Communication Interface | DCS Backplane / I/O Bus |
| Mounting | DIN Rail / Rack Mount (system-specific) |
| Weight | 1,470 g |
| Condition | New / Refurbished Available |
| Compliance | CE, RoHS |
Why Engineers Specify This Model
- Proven METSO DNA Ecosystem Compatibility – Designed for seamless integration within METSO’s distributed control architecture, eliminating compatibility risk
- Relay Isolation – Dry contact relay outputs provide galvanic isolation between the control system and field devices, protecting sensitive DCS electronics
- High Switching Reliability – Industrial-rated relay contacts rated for repetitive switching in continuous process environments
- Hot-Swap / Online Replacement – Supports maintenance without full system shutdown in compatible rack configurations
- Compact Form Factor – Optimized for high-density I/O cabinet layouts common in brownfield upgrades and greenfield DCS installations
- Long Service Life – Built to METSO’s industrial durability standards for 24/7 continuous operation
Complete System Bill of Materials
The IOP351 is typically specified alongside the following METSO system components:
- METSO I/O Controller Module (e.g., IOP321 / IOP331 series)
- METSO DCS Backplane / I/O Rack
- METSO Power Supply Module (system-matched)
- METSO Field Termination Assembly (FTA) for relay wiring
- METSO System Bus Cable / Redundancy Module (application-dependent)
- Field-side relay wiring: shielded twisted-pair cable, terminal blocks, surge protection
Contact Konmask for complete BOM sourcing support and cross-reference assistance.
Compliance & Industry Standards
- CE Marking – European conformity for industrial electrical equipment
- RoHS Compliant – Restriction of Hazardous Substances directive
- IEC 61131 – Programmable controllers standard (system-level)
- IEC 61511 – Functional safety for process industry (SIL-rated system configurations)
- ISO 9001 – Quality management system (manufacturer-level)
Quality Assurance & Sourcing
All METSO modules supplied by Konmask.com undergo a structured quality verification process:
- Visual inspection for physical damage, corrosion, and label integrity
- Firmware / revision verification against METSO documentation
- Functional bench test where applicable
- Anti-static packaging with humidity indicator cards
- Full traceability documentation available on request
We source directly from authorized channels, decommissioned plant inventories, and certified industrial surplus partners to ensure authenticity.
How to Source This Part
- Add to Cart – Click the purchase button above to place your order directly online
- Request a Quote – Email support@konmask.com for volume pricing, lead time confirmation, or BOM-level sourcing
- Phone / WhatsApp – Call or message +0086 19859288691 for urgent requirements
- Provide Your PO – We accept purchase orders from qualified industrial buyers and EPC contractors
Typical lead time: 3–7 business days for in-stock units. Express shipping available.
Application-Specific FAQ
Q: Is the IOP351 compatible with METSO DNA DCS systems?
A: Yes. The IOP351 is designed for integration within the METSO DNA distributed control system I/O architecture. Confirm your system revision with our technical team for exact compatibility.
Q: Can this module be used as a replacement for a failed unit in a live plant?
A: Yes, provided your rack configuration supports online module replacement. We recommend consulting your METSO system documentation or contacting our engineers before hot-swapping in safety-critical loops.
Q: Do you supply the matching Field Termination Assembly (FTA)?
A: We can source compatible FTAs and associated wiring accessories. Contact us with your full system configuration for a matched quote.
Q: What is the warranty on this module?
A: We offer a standard 90-day functional warranty on all modules. Extended warranty and exchange programs are available — contact us for details.
Q: Can you provide a datasheet or METSO documentation?
A: Yes. Request the IOP351 datasheet via email and we will provide available technical documentation.
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Contact: support@konmask.com | +0086 19859288691
