SE-703-03 Littelfuse

Protection Relays and Controls Ground-Fault ProtectionGrounded Systems SE-703 SERIES Earth-Leakage Monitor Description The SE-703 is a microprocessor-based earth-fault relay for resistance- and solidly earthed systems. It offers sensitive earth-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 AS/NZS 2081 compliant to either 2011 or 2002 (see ordering options). Features & Benefits FEATURES BENEFITS Adjustable pickup Adjustable trip setting provides a wide range of low- level protection and system coordination (25 - 500 mA) Adjustable time delay Adjustable trip delay allows quick protection and (INST- 500 ms) system coordination 2 Form C ground-fault output contacts for operation of Output contacts separate annunciation and trip circuits Analog output Allows for connecting an optional meter (PGA-0500) Simplified Circuit Diagram (0 - 5 V) or control system CT CT-Loop monitoring Alarms when CT is not connected A A Contact operating Fail-safe operating mode for undervoltage GROUNDED mode applications, optional non-fail-safe mode available SUPPLY B Harmonic filtering Eliminates nuisance tripping C Non-volatile trip Retains trip state while de-energized to simplify memory troubleshooting Microprocessor based No calibration required, saves maintenance cost Universal Allows operation in application where one side of PT is power supply faulted, provides flexibility for numerous applications Compliant with US, Canadian, European, and Australian SE-703 SERIES Global certifications standards for applications in almost any country (Earth-Leakage Monitor) L1 L2 Accessories EFCT Series Ground-Fault Current Transformer A Required zero-sequence current transformer specifically designed for low-level detection. PGA-0500 Analog % Current Meter Optional panel-mounted analog meter displays ground- Ordering Information fault current as a percentage of the set-point or 5 A. ORDERING NUMBER CONTROL POWER PMA-60 Series Mounting Adapter Required when panel mounting for SE-703-0U-0x 120/240 Vac/Vdc AS/NZS 2081:2011 compliance SE-703-0D-0x 12/24 Vdc Specifications SE-703-0T-0x 48 Vdc IEEE Device Numbers Ground fault (50G/N, 51G/N) SE-703-03-0x 24 Vac Input Voltage See ordering information Dimensions H 75 mm (3.0 ) W 55 mm (2.2 ) D 115 mm (4.5 ) Note: x=0 for AS/NZS 2081:2011 compliance (fail-safe output contacts) Trip Level Settings 25-500 mA x=2 for AS/NZS 2081:2002 compliance (selectable fail-safe or non-fail-safe Trip Time Settings INST-500 ms output contacts Contact Operating Mode Fail-safe (x=0 models) or selectable (x=2 models) Harmonic Filtering Standard feature Test Button Standard feature ACCESSORIES REQUIREMENT Reset Button Standard feature EFCT Series Required CT-Loop Monitoring Standard feature Output Contacts Two isolated Form C contacts PGA-0500 Optional Approvals CSA certified , UL Listed (E340889), PMA-55 Optional CE (European Union), RCM (Australian) Compliance AS/NZS 2081:2011 (x=0 models) or PMA-60 Optional AS/NZS 2081: 2002 (x=2 models) SE-EFVC Voltage Clamp Optional Analog Output 0-5 V Conformally coated Yes Warranty 5 years Mounting DIN, Surface (standard) Panel (with PMA-55 or PMA-60 adapter) 2017 Littelfuse Protection Relays & Controls Rev: 4-D-091517 Littelfuse.com/se-703 Based on Manual Rev 12-B-092117X-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 ACC530U20 ACC633U30 ACC730U30 DH18DA 1423675-8 AVR907 15732A200 B07B032AC1-0329 B329 B490A 1618279-1 BHR124Y 1810DDB-SX N417 P30C42A12D1-120 2-1617748-6 2-1618396-6 2-1618398-1 JMGACD-5M JMGSC-5LW JMGSCD-5L PBO-18A1218 PBO-40A3040 K8DSPH1200480VAC KA-3C-12A RT334012WG S160156115 SAH159 2944795 301-17SX 1618105-2 1618112-6