ABB UNS3020A-Z V3 HIEE205010R0003 Protection Relay
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Key Product Information
Core fields for model confirmation and RFQ routing. Detailed product narrative remains below.
- Brand
- ABB
- Primary Part Number
- UNS3020A-Z
- Product Type
- Protection Relay
- Series / Family
- UNITROL
- Manufacturer
- ABB (ASEA Brown Boveri)
- Country of Origin
- SE
- Model Function
- Ground Fault / Earth Leakage Protection Relay
- Catalog Category
- DCS & Safety Modules
- Operating Temp.
- 0 °C to +55 °C
- Humidity
- 5% – 95% RH, non-condensing
- Compliance
- CE marked; IEC 60255 series
ABB UNS3020A-Z V3 HIEE205010R0003 — Procurement Strategy for Mission-Critical Ground Fault Protection
When a ground fault relay fails inside an ABB UNITROL excitation system or SYMPHONY DCS rack, the downstream consequences extend far beyond the cost of the component itself. Generator windings, motor insulation, and high-value rotating assets are exposed to uncontrolled earth leakage currents within milliseconds. For procurement managers and reliability engineers operating in power generation, petrochemical, or heavy manufacturing environments, the ABB UNS3020A-Z V3 — catalogued under part number HIEE205010R0003 — is not a commodity purchase. It is a risk management decision.
This page is written for industrial buyers who need to evaluate sourcing options with full awareness of lead time risk, total cost of ownership, and supply chain compliance. siemensplc.com maintains verified stock of the HIEE205010R0003 and ships globally from Xiamen, China — one of Asia’s most active international logistics corridors.
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Procurement Specifications
| Manufacturer | ABB (ASEA Brown Boveri) |
| Full Part Number | HIEE205010R0003 |
| Model / SKU | UNS3020A-Z, Version 3 (V3) |
| Function | Ground Fault / Earth Leakage Protection Relay |
| Platform | ABB UNITROL Excitation Systems; ABB SYMPHONY DCS |
| Module Format | Plug-in relay card, DIN rail / rack-mount chassis |
| Logic Supply Voltage | 24 VDC (UNITROL system bus) |
| Detection Method | Residual current / zero-sequence current measurement |
| Response Time | < 20 ms (typical, application-dependent) |
| Output | Relay contact trip + DCS digital alarm signal |
| Communication Interface | ABB UNITROL backplane bus (native) |
| Operating Temperature | 0 °C to +55 °C |
| Storage Temperature | -25 °C to +70 °C |
| Humidity | 5% – 95% RH, non-condensing |
| Weight | 160 g (approx.) |
| Compliance | CE marked; IEC 60255 series |
| Country of Origin | Germany / Sweden (ABB manufacturing) |
| Lead Time (In-Stock) | 3 – 7 business days, DHL / FedEx express worldwide |
| Lead Time (Sourced) | 10 – 21 business days depending on global availability |
| Minimum Order Quantity | 1 unit; volume pricing available from 3 units |
| Payment Terms | T/T, PayPal, Trade Assurance; USD / EUR / HKD / CNY accepted |
Total Cost of Ownership (TCO) Analysis
Procurement decisions for protection relays are frequently evaluated on unit price alone. This is a structural error in industrial cost accounting. The HIEE205010R0003 sits at the intersection of two cost categories that dwarf its acquisition price: unplanned downtime cost and reactive sourcing premium.
Downtime Risk Quantification. In a 300 MW thermal power plant, a single unplanned outage caused by an undetected ground fault in the excitation system can result in lost generation revenue of USD 15,000 – 60,000 per hour, depending on grid tariff structure and capacity market obligations. The UNS3020A-Z V3 is the primary detection layer for exactly this failure mode. A plant operating without a verified spare on-site is effectively self-insuring against a low-probability, high-consequence event with no financial hedge. The annualized cost of carrying one spare unit — factoring in capital cost of the module and storage overhead — is a fraction of a single hour of forced outage.
Reactive Sourcing Premium. When procurement is triggered by an active fault rather than planned maintenance, buyers lose negotiating leverage entirely. Emergency sourcing of legacy ABB UNITROL components through spot markets typically carries a 40% – 120% price premium over planned procurement, plus expedited freight costs that can exceed the component value on intercontinental shipments. Establishing a relationship with a verified supplier like siemensplc.com before the emergency occurs converts a reactive cost center into a managed procurement line item.
OPEX Reduction Through Supplier Consolidation. Sourcing the HIEE205010R0003 through a specialist industrial supplier reduces the internal labor cost of procurement. Rather than navigating ABB’s regional distributor network — which may have limited stock visibility for legacy UNITROL components — a single point of contact at siemensplc.com handles availability confirmation, export documentation, customs classification, and freight coordination. For maintenance teams managing hundreds of spare part lines, this consolidation has measurable OPEX impact.
12-Month Warranty as a Financial Instrument. Every HIEE205010R0003 unit shipped by siemensplc.com carries a 12-month warranty against manufacturing defects. In TCO terms, this warranty eliminates the cost of a second procurement cycle within the warranty period if the unit exhibits early-life failure — a risk that is statistically elevated for components that have been improperly stored or handled in the secondary market. Our pre-shipment functional verification and ESD-compliant packaging directly reduce this risk category.
CAPEX Optimization for Greenfield and Brownfield Projects. For engineering contractors specifying spare parts lists for new UNITROL or SYMPHONY installations, procuring the HIEE205010R0003 through siemensplc.com at competitive wholesale pricing reduces the initial capital outlay for the commissioning spares package. This is particularly relevant for EPC contractors working under fixed-price contracts where spare parts budgets are capped.
Quality & Compliance Assurance
Every unit of the ABB UNS3020A-Z V3 HIEE205010R0003 supplied by siemensplc.com is sourced as a genuine OEM component. We do not supply aftermarket substitutes, remanufactured boards, or units of unverified provenance. The following quality controls apply to every shipment:
- 100% Genuine OEM Commitment: Units carry original ABB factory serial numbers and date codes. Certificates of conformity are available upon request for quality-audited procurement processes.
- Pre-Shipment Inspection: Each module undergoes visual inspection for PCB integrity, connector condition, firmware version label verification, and physical damage assessment before dispatch.
- Xiamen Customs Compliance: All exports are processed through Xiamen Customs with accurate HS code classification, full commercial invoice documentation, and certificate of origin. This ensures clean import clearance at destination ports and eliminates the risk of customs holds that can extend lead times unpredictably.
- ESD-Compliant Packaging: Anti-static bags and foam-lined cartons protect sensitive relay electronics during international transit. Packaging meets IEC 61340-5-1 handling requirements.
- Multi-Currency Payment Support: USD, EUR, HKD, and CNY accepted via T/T bank transfer, PayPal, and Alibaba Trade Assurance — reducing FX friction for international buyers.
- Documentation Package: Commercial invoice, packing list, certificate of origin, and pre-shipment test report provided with every order.
Strategic Sourcing from Xiamen
Xiamen is not an arbitrary logistics point. It is one of China’s five original Special Economic Zones and home to Xiamen Gaoqi International Airport — a major cargo hub with direct freight connections to Frankfurt, Amsterdam, Dubai, Los Angeles, and Singapore. The Port of Xiamen ranks among the top 15 container ports globally by throughput volume, with established LCL and FCL services to every major industrial economy.
For industrial buyers in Southeast Asia, the Middle East, and Europe, Xiamen-origin shipments via DHL Express or FedEx International Priority typically achieve door-to-door transit times of 3 – 5 business days to major cities. For buyers in North America and Australia, 5 – 8 business days is the standard window under normal customs clearance conditions.
Beyond transit speed, Xiamen’s position within China’s export compliance framework means that industrial electronic components are processed under well-established customs procedures. siemensplc.com’s logistics team has direct relationships with licensed customs brokers and freight forwarders who specialize in industrial automation components — ensuring that export licenses, dual-use assessments, and HS code declarations are handled accurately and without delay.
For buyers requiring EXW, FOB, CIF, or DAP Incoterms, siemensplc.com can accommodate all standard trade terms. Freight insurance is available on request for high-value shipments.
Contact Information
Email: [email protected]
WhatsApp: +86 18359268345
Web: siemensplc.com
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Confirmation Process
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Sales confirms stock path, condition option, quantity and realistic lead time for export dispatch.
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