SE-105 Series - Ground-Fault Ground-Check Monitor

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The SE-105/SE-107 is a combination ground-wire monitor and ground-fault relay for resistance-grounded systems. It continuously monitors the integrity of the ground conductor to protect portable equipment from hazardous voltages caused by ground faults. The SE-105/SE-107 is an excellent choice for trailing cables 5 kV and under in underground mining applications. For higher voltages or long-cable applications, see the SE-134C/SE-135.



Adjustable pickup
(0.5, 2.0, 4.0 A)

Unit can be used on a wide variety of trailing cable applications

Adjustable time delay
(0.1 - 2.0 s)

Adjustable trip delay for quick protection and system coordination

Harmonic filter

Prevents false operation

Zener-characteristic termination assembly

Provides reliable ground-check loop verification

Fail-safe ground-check circuit

Ensures ground-check circuit remains safe even in the event of equipment failure

Conformal coating

Additional coating protects circuit boards against harsh environment

SE-105: selectable UV- or shunt-trip mode

Provides flexibility for different applications

SE-107: UV-trip mode only

Eliminates chance of unauthorized change to trip circuit

Access specifications, certifications, check availability and order parts below

Catalog #Supply
SE-105120One Form A (N.O.)CSA; UL
SE-105D120120One Form A (N.O.)CSA; UL
SE-105DL120120One Form A (N.O.)CSA; UL
SE-105E240One Form A (N.O.)CSA; UL
SE-105EL240One Form A (N.O.)CSA; UL
SE-105L120One Form A (N.O.)CSA; UL

pdf icon SE-105 SE-107 Datasheet

pdf icon SE-105 Manual

The SE-105 is a combination ground-fault and groundcheck monitor for resistance-grounded systems in nonhazardous applications.

pdf icon SE-105 Manual French

SE-105 CAD Drawing

RK-105 CAD Drawing

SE-MON GFGC Software

pdf icon Littelfuse Protection Relays Ground-Fault Paper TN

Ground-Fault Protection and Ground-Conductor Monitoring for Portable Mine-Power Cables...

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