ABB SNAT-7120 Circuit Board – SNAZ7120J Series
ABB SNAT-7120 SNAZ 7120 J SNAZ7120J is listed for SNAZ7120J Series RFQ review. Confirm quantity, condition and destination before quotation.
Model: 1MRK001162-CCr00
Product Overview
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Datasheet Preview
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Commercial Path
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Technical Dossier
The ABB Relion 670 Series is a platform of numerical protection and control IEDs (Intelligent Electronic Devices) deployed across critical heavy-industry infrastructure worldwide — including petrochemical refineries, nuclear power auxiliary systems, offshore platforms, and high-voltage transmission substations. Built on ABB's proprietary LDCM (Line Distance and Current Measurement) architecture and IEC 61850 Edition 2 communication stack, the 670 Series represents the current-generation backbone of ABB's protection relay portfolio. Units in this series are installed in switchgear panels rated from 11 kV to 500 kV and are certified to IEC 60255, IEEE C37.90, and EN 50263 standards. The 1MRK001162-CCr00 is a control panel assembly used within the 670 Series hardware chassis, providing front-panel operator interface and local HMI connectivity.
The Relion 670 Series was introduced in the mid-2000s as a successor to ABB's REX 500 and SPACOM platforms. The initial hardware revision (version 1.0–1.1) used a VME-based backplane with proprietary LON-bus communication. Version 1.2 introduced IEC 61850 GOOSE messaging over Ethernet, replacing the earlier SPA-bus serial protocol. Version 2.0 (circa 2012) migrated to a 32-bit ARM-based CPU module and introduced the LHMI (Local Human Machine Interface) with a graphical display, replacing the earlier character-based LCD. Version 2.2 added IEC 61968/61970 CIM compatibility for SCADA integration. The current revision (2.2.4+) supports IEEE 1588 PTP time synchronization and redundant Ethernet via PRP/HSR. Compatibility between hardware revisions requires careful attention: version 1.x I/O modules are not hot-swappable into version 2.x chassis without firmware alignment. End-users operating legacy 1.x installations must source original hardware revisions for like-for-like replacement, as firmware cross-loading is not supported by ABB.
The following SKUs represent verified components within the ABB Relion 670 Series hardware and accessory catalog, organized by functional category:
Control & HMI Panels
CPU & Processing Modules
Digital Input / Output Modules
Analog Input Modules
Communication & Networking Modules
Power Supply Modules
ABB has formally transitioned several 670 Series version 1.x modules to end-of-life (EOL) status, with last-time-buy windows closed for select part numbers including 1MRK002082-Ar00 and 1MRK002084-Ar00. DriveKNMS maintains a dedicated inventory of new-surplus, refurbished, and tested-used 670 Series components to support installations with remaining operational lifespans of 10–20 years. For operators of legacy 670 Series v1.x systems in nuclear auxiliary, offshore, or long-cycle chemical plant environments — where panel replacement is not operationally feasible — DriveKNMS provides lifecycle extension sourcing, including cross-reference validation against ABB's supersession tables. All EOL part numbers are cross-checked against ABB's published replacement matrix before dispatch. Customers are advised to provide the full part number including revision suffix (e.g., -Ar00, -Br00, -CCr00) to ensure hardware revision accuracy.
The 670 Series employs a multi-layer backplane bus architecture combining a high-speed internal process bus with a separate power distribution rail. Quality verification for these modules requires specialized procedures beyond standard power-on testing. DriveKNMS applies the following protocol to all 670 Series units: (1) Visual inspection of backplane connector pins and PCB for corrosion, flux residue, or mechanical stress fractures. (2) Firmware version readout via the LHMI or PCM600 engineering tool to confirm revision compatibility with the target chassis. (3) Functional I/O verification using a 670 Series test chassis: binary inputs are stimulated at rated voltage (24 VDC, 48 VDC, 110 VDC, 220 VDC) and output relay contact resistance is measured (<100 mΩ threshold). (4) Analog input accuracy test: CT/VT channels are injected with calibrated secondary current (1A and 5A) and voltage (57.7 V and 110 V) to verify measurement accuracy within ±0.2% of rated value. (5) Communication module loopback test on IEC 61850 GOOSE and MMS protocol layers. (6) 48-hour burn-in at 40°C ambient prior to shipment for refurbished units.
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