Schweitzer Engineering
Model: SEL-311L / SEL311L 
Line Current Differential Protection and Automation System 
Part Number: 0311L0HCC4254XX


SEL Schweitzer Engineering Laboratories.

The Schweitzer SEL-311L Line Current Differential Protection and Automation System is a high-performance relay 
designed for fast, reliable line protection with integral four-zone distance backup. It features subcycle current 
differential protection with single or dual differential channels, providing robust security even in challenging scenarios 
like CT saturation or tapped loads. Ideal for two- or three-terminal lines, it supports a range of applications with 
advanced features like hot-standby differential channels, directional overcurrent backup, and four-shot reclosing. With 
versatile communication options, including fiber and multiplexed channels, the SEL-311L ensures dependable 
operation. Its integrated LCD display and real-time monitoring of breaker wear, battery voltage, and relay health 
enhance reliability and streamline automation systems, reducing overall project costs.


** 30 Days Free Return.


Power on and tested item testing picture are attached.
Have some marks and scratches due to old stock. 


© All the pictures are Organic and this part is physically in our stock.





Condition and Details:

This is a used item in good condition.
Not In the Original Packing
No Accessories / Cables or probe (only what showing in actually given pictures and in the description).




Old Stock.






Shipping:
Usually, we ship same business day, subject to clear funds into our account 
Standard order processing time is 2 to 4 business days 
Item will be packed as per International Standard, 
International Orders: DHL / SingPost / EMS 
 

* Expedited shipping is available for an extra fee.
* International buyers pay all custom, duties, taxes & brokerage fees at their end
 
Warranty and Returns:
Warranty:

Free 30 Days Money Back or Replacement, Seller pays return shipping.


Product Returns:

Returns:
Return 
to Base Warranty, Any type of power failure/burn / physical damage / tempered seal will void the warranty.
 







Payment:
Payment Methods:

PayPal
Credit Cards  
Wire-transfer: Kindly contact us for payment instructions

International buyers without PayPal: Kindly contact us before bidding
                          
About Us:
We deal in Semiconductor & Wafer Handling Parts/Components/machinery and types of equipment. A Verity of Industrial Automation Equipment and Parts.

Industrial PCs, PLCs, HMI, Controllers, and Sensors.
Industrial robotics, Data Acquisition, and Test & Measurement.  
Industrial Single Board Computers.
Marine Parts / Equipments.
Oil & Gas and offshore station.
Lab and Research Equipments.

We Source, We Refurbish, We Service and We also Repair …please contact for any further detailed inquiries.