SE-704-0U Littelfuse

Protection Relays and Controls GROUND-FAULT PROTECTIONGROUNDED SYSTEMS SE-704 SERIES (PGR-4704) Earth-Leakage Monitor Description The SE-704 is a microprocessor-based ground-fault relay for resistance- and solidly-grounded systems. It offers very sensitive ground-fault detection as low as 10 mA and can be used on systems with significant harmonic content. The SE-704 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. Features & Benefits FEATURES BENEFITS Adjustable pickup Adjustable trip setting provides a wide range of low- (10 mA - 5 A) level protection and system coordination Adjustable time delay Adjustable trip delay allows quick protection and (30 ms - 2.0 s) system coordination Form A and Form B ground-fault output contacts for Output contacts operation of separate annunciation and trip circuits Analog output Allows for connecting an optional meter (PGA-0500) (0-5 V & 0-1 mA) or control system CT-Loop monitoring Alarms when CT is not connected Simplified Circuit Diagram Selectable contact Selectable fail-safe or non-fail-safe mode allows CT A operating mode connection to shunt or undervoltage breaker coil A Harmonic filtering Eliminates nuisance tripping GROUNDED B Non-volatile trip Retains trip state when de-energized to simplify SUPPLY memory troubleshooting C Microprocessor based No calibration required saves maintenance cost Allows operation in application where one side Universal of PT is faulted, provides flexibility for numerous power supply applications Accessories SE-704 SERIES ELCT30 or SE-CS30 Series Current Transformer A (Earth-Leakage Monitor) Required zero-sequence current transformer L1 specifically designed for low level detection. Flux conditioner is included to prevent saturation. L2 PGA-0500 Analog % Current Meter Optional panel-mounted analog meter displays ground- fault current as a percentage of the set-point or 5 A. Specifications Ordering Information IEEE Device Numbers Ground fault (50G/N, 51G/N) ORDERING NUMBER CONTROL POWER Input Voltage See ordering information Dimensions H 75 mm (3.0 ) W 55 mm (2.2 ) D 115 mm (4.5 ) SE-704-0U 120/240 V ac/V dc Trip Level Settings 10 mA-5.0 A SE-704-0D 12/24 V dc Trip Time Settings 30-2000 ms Contact Operating Mode Selectable fail-safe or non-fail-safe SE-704-0T 48 V dc Harmonic Filtering Standard feature Test Button Standard feature SE-704-03 24 V ac Reset Button Standard feature CT-Loop Monitoring Standard feature Output Contacts Isolated Form A and Form B ACCESSORIES REQUIREMENT Approvals UL Listed (E340889), CSA, CE (European Union) ELCT30 or SE-CS30 Series Required C-Tick (Australian) Analog Output 0-5 V & 0-1 mA PGA-0500 Optional Conformally coated Optional Warranty 5 years PMA-55, PMA-60 Optional Mounting DIN, Surface (standard) Note: For optional conformal coating please consult factory. Panel (with PMA-55 or PMA-60 adapter) Disclaimer Notice Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/product-disclaimer. Littelfuse.com /se-704 2020 Littelfuse, Inc. Rev: 4-B-072920 1 of 1 Based on Manual Rev 7-C-082814X-ON Electronics Largest Supplier of Electrical and Electronic Components Click to view similar products for Industrial Relays category: Click to view products by Littelfuse manufacturer: Other Similar products are found below : 6-1617801-8 6-1618107-9 7-1618273-3 EV250-4A-02 EV250-6A-01 FCA-125-CX8 FCA-325-159 FCA-410-138 8000-S3121 8-1618273-6 8-1618393-1 GCA63A220VAC60HZ GCA63A277VAC60HZ GCA63A600VAC60HZ 1-1672275-3 1-1833005-4 H-16/S1 A711Z H-8C H-8/S11 H-8/S68 ACC530U20 ACC730U30 RF303ZM4-12 DH18DA 1423675-8 AR4-15F13-C01 AR7-41F11 AVR907 15732A200 B07B032AC1-0329 B329 B490A 1618279-1 BHR124Y 1810DDB-SX N417 P30C42A12D1-120 2-1617748-6 2-1618375-1 2-1618396-6 2-1618398-1 JMAPD-5XL JMGACD-5M JMGSC-5LW JMGSCD-5L PBO-18A1218 PBO-40A3040 K8DSPH1200480VAC KA-3C-12A