Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
Your message must
be between 20-3,000 characters!
Submit Requirement
Thank You！
Your requirement has been sent. we will contact you quickly!
{"title":"SEL-751 & SEL-411L Protection Relays | Original SEL New","imgUrl":"https:\/\/img.chinax.com\/nimg\/28\/11\/c507c8736effee735d5f1411b36d-200x200-1\/sel_751_26amp_3b_sel_411l_protection_relays_7c_original_sel_new.jpg","attrs":{"Brand Name":"SEL","Model Number":"SEL-751\u3001SEL-411L","Certification":"IEEE \/ IEC \u3001CE & UL\u3001ISO","Place of Origin":"USA"}}
{"title":"LYD1-C40\/385 Surge Protector Relay Surge Protection 40kA 385VAC For PV","imgUrl":"https:\/\/img.chinax.com\/nimg\/76\/98\/0040ef09291c15920f8ca87326b9-200x200-1\/lyd1_c40_2f385_surge_protector_relay_surge_protection_40ka_385vac_for_pv.jpg","attrs":{"Model Number":"LYD1-C40\/385","Certification":"CE\u3001T\u00dcV\u3001UL\u3001IEC","Place of Origin":"China","Minimum Order Quantity":"1"}}
{"title":"Original Genuine Breaker Contactor Relay High Current For Industrial Automation","imgUrl":"https:\/\/img.chinax.com\/nimg\/44\/bb\/be158e24175805e95a6b69342a36-200x200-1\/original_genuine_breaker_contactor_relay_high_current_for_industrial_automation_26_ev.jpg","attrs":{"Model Number":"G2R\u3001G6RN\u3001MY\u3001G7L\u3001G9KA\u3001G9EK\u3001G9KB\u3001G9TA\u3001G6K\u3001G6J-Y\u3001G6A\u3001G5V","Certification":"TUV\u3001UL\u3001CQC\u3001CSA\u3001VDE\u3001RoHS\u3001IEC","Place of Origin":"Japan","Minimum Order Quantity":"1"}}
{"title":"Genuine Protection Relay Differential Overcurrent Relay For Power Grid & New","imgUrl":"https:\/\/img.chinax.com\/nimg\/bb\/cc\/b20502243f6734706acacfb828d5-200x200-1\/genuine_protection_relay_differential_overcurrent_relay_for_power_grid_26_new_energy.jpg","attrs":{"Model Number":"SIPROTEC 4\u3001SIPROTEC 5\u30017SJ80\/81\/82\u3001SIRIUS \u3001P1J","Certification":"CE\u3001IEC\u3001UL\u3001VDE\u3001EAC\u3001UKCA\u3001RoHS","Place of Origin":"Germany","Minimum Order Quantity":"1"}}
{"title":"6A-16A ABB Safety Relay Overcurrent Phase Sequence Time Delay Protection","imgUrl":"https:\/\/img.chinax.com\/nimg\/85\/9f\/82145d4662a18c464f2feec9693b-200x200-1\/6a_16a_abb_safety_relay_overcurrent_phase_sequence_time_delay_protection.jpg","attrs":{"Model Number":"CR\u3001CM\u3001TA\u3001CT\u3001REF\u3001REX\u3001","Certification":"CE\u3001UL\u3001cUL\u3001VDE\u3001IEC\u3001RoHS\u3001ATEX\u3001IECEx\u3001EAC\u3001CB\u3001SIL2\/SIL3\u3001UKCA","Place of Origin":"Switzerland","Minimum Order Quantity":"1"}}
{"title":"Siemens SION 3AE & 3AH VCB | Original Medium Voltage Breaker","imgUrl":"https:\/\/img.chinax.com\/nimg\/c9\/64\/4712da8c2d0a86526ba3657bc532-200x200-1\/siemens_sion_3ae_26_3ah_vcb_7c_original_medium_voltage_breaker.jpg","attrs":{"Brand Name":"Siemens","Model Number":"3AE \u30013AH","Certification":"IEC 62271-100\u3001CE & UL \u3001ISO","Place of Origin":"Germany"}}
{"title":"Schneider HVX Vacuum Circuit Breaker | 12-36kV Original VCB","imgUrl":"https:\/\/img.chinax.com\/nimg\/28\/6f\/23b9917867bce465d8935ff7744c-200x200-1\/schneider_hvx_vacuum_circuit_breaker_7c_12_36kv_original_vcb.jpg","attrs":{"Brand Name":"Schneider","Model Number":"HVX 12\u3001HVX 24\u3001HVX 36","Certification":"IEC 62271-100\u3001CE & UL\u3001ISO","Place of Origin":"France"}}
International Express（DHL/FEDEX/TNT/UPS/ARAMEX）/sea Freight / Air Freight / International Special Line
Freight Charge
For Industrial Equipment (e.g., PLC Modules, Inverters..), Shipping Cost Varies By Package Weight/volume And Delivery Location. Contact Our Sales Team For A Customized Shipping Solution And Quote
International Express（DHL/FEDEX/TNT/UPS/ARAMEX）/sea Freight / Air Freight / International Special Line
Freight Charge
For Industrial Equipment (e.g., PLC Modules, Inverters..), Shipping Cost Varies By Package Weight/volume And Delivery Location. Contact Our Sales Team For A Customized Shipping Solution And Quote
SEL-751 & SEL-411L Protection Relays | Original SEL New
The SEL-751 and SEL-411L represent the pinnacle of power system protection. We supply original SEL numerical relays designed to safeguard feeders and transmission lines against faults. With SEL's legendary reputation for reliability and our commitment to providing 100% genuine, brand-new hardware, we ensure your utility or industrial power system remains secure under the most demanding conditions.
Product Highlights
Hardened Cybersecurity: Integrated secure communication protocols to protect critical infrastructure from cyber threats.
High-Speed Protection: Sub-cycle line differential and distance protection with the SEL-411L series.
Versatile Logic: Advanced SELogic allows for complex automation and interlocking without external PLCs.
Technical Specifications
Feature
SEL-751 (Feeder)
SEL-411L (Differential)
Primary Focus
Feeder Protection & Arc Flash
Line Differential & Distance
Communication
Ethernet, Modbus, DNP3
Dual Ethernet, Mirrored Bits
Arc Flash Support
Yes (Fiber Optic)
No
Protection Speed
Standard High-Speed
Sub-cycle Line Protection
Software Support
AcSELerator QuickSet
AcSELerator QuickSet
Application Fields
Utility Substations: Main and backup protection for transmission and distribution.
Renewable Energy: Secure integration of wind and solar farms.
Heavy Industry: Protection for large mining, chemical, and metal processing plants.
Microgrids: Advanced logic for islanding and synchronization.
Frequently Asked Questions
Q: Does the SEL-751 include arc flash sensors?
A: The relay supports arc flash detection, but fiber-optic sensors are typically ordered as separate accessories.
Q: Can I use the SEL-411L for long-distance transmission lines?
A: Yes, it is specifically designed for high-speed line differential and distance protection over fiber or serial links.
Q: Is the AcSELerator QuickSet software included?
A: We provide the necessary technical documentation; the software is usually available through SEL's official portal.
Q: How do you verify the 10-year warranty?
A: SEL products are famous for their 10-year warranty. We provide original units with valid serial numbers for registration.
Q: Are these units made in the USA?
A: Yes, SEL products are primarily engineered and manufactured in the USA.
Q: What is the configuration for a standard SEL-751-5-1-1-A?
A: This configuration typically includes standard I/O, 125/250 Vdc power, and standard communication ports.
