NARI-RELAYS OUT2 Ruggedized Dual-Output Module

Product Overview

NARI-RELAYS OUT2 Ruggedized Dual-Output Module for Harsh Industrial Environments

The NARI-RELAYS OUT2 is a ruggedized dual-output relay protection IED (Intelligent Electronic Device) module engineered for continuous, fault-free operation in the most demanding power system and industrial automation environments. Designed as a core output card within the PCS-9000 series protection platform, the OUT2 delivers reliable trip and close signal execution across high-voltage substations, power generation facilities, and heavy industrial control systems where signal integrity and response speed are non-negotiable.

Built to withstand extreme thermal cycling, high-humidity atmospheres, airborne particulate contamination, mechanical vibration, and intense electromagnetic interference (EMI), the OUT2 module maintains deterministic output behavior even when installed in open-air switchgear rooms, underground mining control panels, or coastal substations exposed to salt-laden air. Its hardened PCB coating and conformal surface treatment provide long-term protection against corrosive gases and condensation — conditions that routinely degrade standard commercial-grade electronics within months of field deployment.

Rugged Specifications Table

Comprehensive Protection Solutions

The OUT2 module does not operate in isolation — it is the final execution layer in a tightly integrated protection chain. Within a typical PCS-9000 relay protection cabinet, the OUT2 works in concert with the NARI-RELAYS CPU1 central processing module, which handles protection logic computation and issues trip commands that the OUT2 translates into physical relay contact closures. Upstream, the IN4 or IN8 binary input modules capture field status signals from circuit breakers, isolators, and auxiliary contacts, feeding real-time state data to the CPU for decision-making.

For analog measurement, the AC1 or AC4 AC input modules digitize current and voltage waveforms from CTs and VTs, enabling the protection IED to detect overcurrent, differential, distance, or earth-fault conditions. When a fault is confirmed, the OUT2 executes the trip or close command with millisecond-level response, directly driving the circuit breaker trip coil or lockout relay in the switchgear panel. In applications requiring redundant protection, a secondary OUT2 card is often installed alongside the primary, ensuring that a single card failure does not compromise system safety.

The PCS-9000 platform also integrates seamlessly with NARI-RELAYS COM1 or COM2 communication modules, which handle IEC 61850 GOOSE messaging and IEC 60870-5-103 serial communication to the SCADA or DCS layer. In substations running a NARI PCS-9611 or PCS-9705 series protection relay, the OUT2 card serves as the standardized output interface, ensuring interoperability across protection zones. For power supply redundancy within the protection panel, the PWR1 DC power supply module provides stable 24 VDC or 48 VDC rail power to all IED cards including the OUT2, with built-in overvoltage and reverse-polarity protection.

In distributed I/O architectures where remote I/O units are deployed across large substations or industrial plants, the OUT2 can be paired with NARI-RELAYS RIO series remote I/O modules to extend output reach without signal degradation. This makes the OUT2 equally valuable in both compact bay-level protection panels and large multi-bay protection and control systems.

Application in Critical Infrastructure

The NARI-RELAYS OUT2 has established a strong operational track record across China’s most demanding critical infrastructure sectors, and its proven design makes it a trusted choice for international projects in similar environments.

Power Generation & Transmission: In 110 kV to 500 kV substations, the OUT2 module executes generator protection, transformer differential protection, and busbar protection trip commands. Its fast relay response — typically under 5 ms contact closure time — meets the stringent requirements of high-voltage protection schemes where delayed tripping can result in cascading failures across the grid.

Oil & Gas Processing: In hazardous-area control rooms and wellhead automation panels, the OUT2 provides reliable output signaling for emergency shutdown (ESD) systems and process safety interlock circuits. Its tolerance for wide temperature swings and resistance to hydrocarbon-laden atmospheres make it suitable for both onshore and offshore applications where standard modules fail prematurely.

Mining & Mineral Processing: Underground mining environments subject control electronics to constant vibration from blasting and heavy machinery, combined with coal dust and high humidity. The OUT2’s conformal-coated PCB and vibration-rated construction allow it to maintain reliable output contact operation in longwall mining control systems, conveyor protection panels, and ventilation control cabinets.

Water & Wastewater Treatment: Municipal water treatment plants and pumping stations require 24/7 uninterrupted operation of motor protection and pump control systems. The OUT2 module’s proven reliability in continuous-duty applications, combined with its compatibility with the PCS-9000 platform’s self-monitoring diagnostics, reduces unplanned downtime and simplifies preventive maintenance scheduling.

Metallurgy & Steel Production: Electric arc furnaces, rolling mills, and smelting operations generate extreme electromagnetic noise that disrupts sensitive control electronics. The OUT2’s Class III surge immunity and EMI-hardened design ensure that protection relay output commands are executed accurately even in the presence of high-frequency switching transients from large variable-frequency drives and thyristor-controlled rectifiers.

Security & Quality FAQ

Q1: What does the 12-month warranty cover, and how is a warranty claim processed?
The 12-month warranty covers all manufacturing defects, component failures, and functional anomalies that occur under normal operating conditions as specified in the product datasheet. If a module fails within the warranty period, TOPNLMS will arrange replacement or repair at no additional cost. Claims are initiated by contacting [email protected] with the order reference and a description of the fault. Replacement units are typically dispatched within 3–5 business days after fault confirmation.

Q2: How is each OUT2 module tested before shipment?
Every NARI-RELAYS OUT2 module in our inventory undergoes a pre-shipment functional verification process that includes power-on self-test, relay contact continuity and isolation resistance measurement, and output channel actuation testing. Modules that exhibit any anomaly during testing are quarantined and not shipped. A test report is available upon request for customers with strict incoming inspection requirements.

Q3: Is the OUT2 compatible with all PCS-9000 series protection relays, and can it replace older revisions?
The OUT2 is designed as a standard output card for the PCS-9000 platform and is compatible with the full range of PCS-9000 series protection relays, including the PCS-9611, PCS-9705, PCS-9621, and related variants. Hardware revision compatibility should be confirmed against the relay’s configuration file and backplane slot assignment. TOPNLMS technical support can assist with cross-referencing your existing system configuration to confirm drop-in replacement suitability before purchase.

Q4: Can TOPNLMS guarantee long-term supply of the OUT2 for ongoing maintenance contracts?
Yes. TOPNLMS maintains dedicated stock of high-demand NARI-RELAYS PCS-9000 series modules including the OUT2, specifically to support customers with long-term maintenance and spare parts agreements. For utilities, EPCs, and industrial operators managing multi-year asset maintenance programs, we offer reserved stock arrangements and priority fulfillment to ensure that critical spare parts are available when needed, without lead-time uncertainty.