SE-701-0T-CC

Protection Relays and Controls Ground-Fault Protection–Grounded Systems SE-701 SERIES (PGR-5701) Ground-Fault Monitor Description The SE-701 is a microprocessor-based ground-fault relay for resistanceand solidly-grounded systems. In addition to common systems, it is uniquely suited for use on systems with significant harmonic content. The SE-701 can provide main-plant protection, feeder-level protection, or individual-load protection. Proper current transformer selection provides the desired pickup range. 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. Features & Benefits FEATURES BENEFITS Adjustable pickup (1-99%) Adjustable time delay (50 ms - 2.5 s) Analog output (0 - 5 V) Trip setting based on input CT primary, allows use with any CT. Minimum 50 mA with EFCT Series. Adjustable trip delay allows quick protection and system coordination Form A and Form B ground-fault output contacts for operation of separate annunciation and trip circuits Allows for connecting an optional meter (PGA-0500) or a control system CT-Loop monitoring Alarms when CT is not connected Selectable DFT or peak detection filtering Compatible with variable-speed drives Harmonic filtering Eliminates nuisance tripping Non-volatile trip memory Retains trip state while de-energized to simplify troubleshooting Microprocessor based No calibration required, saves on maintenance cost Allows operation in application where one side of PT is faulted, provides flexibility for numerous applications Output contacts Simplified Circuit Diagram CT A A GROUNDED B SUPPLY C Universal power supply Accessories SE-701 SERIES L1 (Ground-Fault Monitor) L2 A Ground-Fault Current Transformer Required current transformer model depends on application. We offer a variety of sensitive CTs with 5- and 30-A primaries. PGA-0500 Analog % Current Meter Optional panel-mounted analog meter displays ground-fault current as a percentage of the CT primary rating. Ordering Information Specifications ORDERING NUMBER CONTROL POWER SE-701-OU 120/240 Vac/Vdc SE-701-OD 12/24 Vdc SE-701-OT 48 Vdc SE-701-O3 24 Vac ACCESSORIES REQUIREMENT Current Transformer Required PGA-0500 Optional PMA-55, PMA-60 Optional SE-EFVC Voltage Clamp Optional Note: For optional conformal coating please consult factory. © 2018 Littelfuse Protection Relays & Controls Littelfuse.com/se-701 IEEE Device Numbers Ground fault (50G/N, 51G/N) Input Voltage See ordering information Dimensions  H 75 mm (3.0"); W 55 mm (2.2"); D 115 mm (4.5") Trip Level Settings 1-99% CT-Primary Rating Trip Time Settings 0.05-2.5 s Contact Operating Mode Selectable fail-safe or non-fail-safe Harmonic Filtering Standard feature Test Button Standard feature Reset Button Standard feature CT-Loop Monitoring Standard feature Output Contacts Isolated Form A and Form B Approvals CSA certified, UL Listed (E340889), CE (European Union), C-Tick (Australian) Analog Output 0-5 V Conformally coated Consult factory Warranty 5 years Mounting DIN, Surface (standard) Panel (with PMA-55 or PMA-60 adapter) Rev: 4-A-072414 Based on Manual Rev 10-C-072414