SE-703-0T - SE-703 Series

Series: SE-703
Obsolete: 2018 -08-14 Availability: Obsolete

Obsolete

Questions? Contact Littelfuse Support
Roll Over to Zoom
Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

The SE-703 is a microprocessor-based ground-fault relay for resistance- and solidly-earthed systems. It offers sensitive ground-fault detection as low as 25 mA and can be used on systems with significant harmonic content. The SE-703 provides feeder-level protection or individual-load protection. The output contacts can be connected for use in protective tripping circuits or in alarm indication circuits. The analog output can be used with a PLC or a meter. The SE-703 is specifically designed to be Australian AS/NZS 2081 compliant.
Property (Mouseover for details) Value
Analog Output Voltage V 0 - 5 V
Relay Contacts Config 1 Form A (N.O.); 1 Form B (N.C.)
Supply Voltage dc 48
IEEE Device Numbers 50G - 50N - 51G - 51N
Relay Contacts Operation Fail-safe
Dimensions 3 H x 2.2 W x 4.5 D in.
Weight (lbs/g) 0 Kg
Auto Manual Reset Latching
Conformally coated Optional
CT Loop Monitoring Standard
Frequency 50; 60; ASD
GF Trip Level Range pct 1 - 99% of CT-Primary Rating
GF Trip Time s 0.5 - 2.5
Harmonic Filtering Standard (DFT)
Reset Type Front-panel switch/Remote N.O. Contact
System type Solidly Grounded AC; Resistance Grounded AC
Test Button Front-panel switch
To request product environmental information, please complete the Product Environmental Information Request Form.