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- SEL-351A
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PRODUCT DESCRIPTION
SEL-351A feeder protection relay
SEL-351A protection system for feeder overcurrent protection, breaker control, fault location, metering and substation communications. Confirm the complete article identity, installed configuration and manufacturer documentation before ordering or replacement.
BEFORE YOU BUY
Confirm the complete feeder protection relay
ACTUAL APPLICATIONS
Application context for SEL-351A
Manufacturer documentation places the Feeder Protection Relay in practical electrical applications. The three cases below describe different operating tasks in which SEL-351A performs its documented product-family role with the configured companion equipment.
- 01 · WATER & WASTEWATER
Support chemical dosing with Feeder Protection
Inside the metering pumps and contact tanks, SEL-351A provides its specified system function as a Feeder Protection Relay. During dose-setpoint correction, the system uses this function to match reagent flow to the measured process load, helping it keep treatment chemistry inside its operating target. - 02 · MACHINERY MANUFACTURING
Balance press sequencing with Feeder Protection
During operation of the feed systems, dies and safety interfaces, SEL-351A supports the configured automation role as a Feeder Protection Relay. During part change, the system uses this function to apply the selected product recipe to the sequence, helping it produce the intended part without skipping an interlock. - 03 · POWER GENERATION
Monitor boiler feedwater with Feeder Protection
Across the feed pumps and drum-level loops, SEL-351A supports the configured automation role as a Feeder Protection Relay. During protective transfer, the system uses this function to balance flow demand with process inventory, helping it preserve the steam-water balance.
Technical specifications for SEL-351A
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Product ModelSEL-351A
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Product Parametersfeeder protection relay
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In stock1 unit
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ManufacturerSelinc
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ProtocolsModbus TCP/RTU, DNP3, IEC 61850
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Ethernet10/100BASE-T; optional fiber
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Serial PortFront EIA-232 DB-9
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Rear Serial Ports2 x EIA-232 DB-9
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EIA-485Optional 5-position terminal
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Frequency Elements6
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Residual Ground Elements2
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SynchrophasorsIEEE C37.118
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Rated Supply24 V DC
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MountingControl cabinet
View all additional
Alternative Names
SEL 351A
SEL-351 protection systems feeder protection relay
SEL feeder protection relay
SYSTEM & REPLACEMENT CHECK
Information needed before ordering
Three direct checks to secure your system integration and minimize ordering risks.
Information
System integration
Replacement check
Manuals & support
SYSTEM INTEGRATION
Match SEL-351A to the installed SEL-351 protection systems
SEL SEL-351A is a feeder protection relay used in the SEL-351 protection systems. Apply SEL-351A only in the manufacturer-specified SEL-351 protection systems position. Match the complete article number, electrical interfaces and adjacent hardware before service.
Record connector keying, terminal assignments, shields, protective earth and neighboring assemblies for SEL-351A; restore the same controlled arrangement during installation. Confirm eia-485 (Optional 5-position terminal), frequency elements (6), the exact mechanical position and approved system configuration before connection.
After installing SEL-351A, review system diagnostics and test the affected signals, communication or controlled equipment at a safe operating point. Record the final acceptance results. Use qualified personnel, keep the applicable manufacturer instructions at the work location and retain the measured results with the equipment service record.
Features:
- Exact identity: SEL-351A
- Product class: feeder protection relay
- Family: SEL-351 protection systems
The SEL SEL-351A requires documented system integration before energising the equipment.
REPLACEMENT CONTROL
Verify the complete SEL-351A identity before exchange
Replace SEL-351A only after matching the full article identity, feeder protection relay, serial port (Front EIA-232 DB-9) and documented system role. Confirm that the installed hardware version and controlled configuration agree with the manufacturer record.
Before removal, photograph the product label, mounting position, synchrophasors (IEEE C37.118), cable routing, shields, earth connections and adjacent assemblies. Preserve the approved program, parameter set or network configuration needed for recovery.
After installation, verify rated supply (24 V DC) and mounting (Control cabinet). Review diagnostics, test the affected function at a safe operating point and record the final maintenance acceptance evidence.
Features:
- Exact identity: SEL-351A
- Synchrophasors: IEEE C37.118
- Mounting: Control cabinet
The SEL SEL-351A requires documented replacement verification before energising the equipment.
DOCUMENTATION STATUS
Browse the Manuals, Datasheets, Official Documents, Links
Important Notice: Official documents are provided through manufacturer links. Accessories, manuals, cables, calibration data, software and certificates are included only when listed in the quotation.
Features:
- Technical values prepared for SEL-351A
- Installation checks matched to SEL-351 protection systems
- Exact SEL identity required before service
Documentation for SEL SEL-351A must match the installed equipment and complete product identity; confirm manual applicability before service.
Also searched as
Important notice
Manuals, software, firmware, cables, calibration data and accessories are included only when listed in the quotation. AMIKON is an independent supplier and is not affiliated with or authorised by the manufacturer.
This content has been produced using multiple sources. Takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
BUYER INFORMATION
Commercial terms without hidden steps
Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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01
Shipping & delivery
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DispatchEligible stock: same / next day
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CarriersDHL, FedEx or UPS
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Ship fromXiamen, China
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Packed size53 × 26 × 28 cm
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Shipping weight5.4 kg
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02
Payment & customs
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PaymentBank transfer (T/T)
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CurrenciesUSD · EUR · GBP · RMB
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Credit cardsNot accepted
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HS reference85363090
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OriginUnited States
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03
Warranty & returns
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Warranty12 months from AMIKON
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InspectionLabel, condition and packing checks
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ReturnsPrior RMA authorisation required
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CompatibilityConfirm before order
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OEM warrantyDoes not apply
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Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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Part checked
Full suffix recorded -
Condition checked
Label and appearance -
Packing checked
Antistatic protection -
Tracking supplied
Established couriers -
Sandy Lin
Dedicated account manager · 15+ years
FREQUENTLY ASKED QUESTIONS
Questions buyers ask about SEL-351A
Direct answers about identity, compatibility, stock, warranty, payment and shipping.
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Which protocols value must match when sourcing SEL-351A?
SEL-351A is documented with Protocols Modbus TCP/RTU, DNP3, IEC 61850. Compare this value, the full order number and installed system record before purchase. -
How should engineering verify ethernet for SEL-351A?
Use the manufacturer data and installed configuration to confirm Ethernet 10/100BASE-T; optional fiber; retain the checked value in the replacement work pack. -
What does serial port Front EIA-232 DB-9 mean for installing SEL-351A?
The installation must satisfy Serial Port Front EIA-232 DB-9 together with the documented power, interface, mounting and environmental limits for SEL-351A. -
Which compatibility records should accompany a distributor quote for SEL-351A?
Provide the complete model, quantity, nameplate photos, installed SEL-351 protection systems, required interfaces and destination country. Include project or network records when relevant. -
Can SEL-351A replace a similar feeder protection relay without configuration changes?
Do not decide by appearance. Match the full order number, hardware or firmware level, Rear Serial Ports 2 x EIA-232 DB-9, interfaces and approved project before exchange. -
What should receiving inspection check on SEL-351A before installation?
Check the exact label, housing, connectors, terminals, mounting points and supplied accessories. Reject damage, contamination, bent pins or unreadable identification. -
Which connection evidence should maintenance capture before removing SEL-351A?
Photograph connector keying, cable destinations, port assignments, shields, protective earth and adjacent modules. Save the controlled configuration and current diagnostics. -
What commissioning result confirms SEL-351A is ready for service?
Confirm normal diagnostics, communication and affected equipment response, then test the documented feeder protection relay function under controlled conditions and record acceptance.
READY TO VERIFY YOUR PART?
Get a SEL-351A quote with price, lead time and revision check.
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