SE-703 Earth-Leakage Monitor
Functions:
- Earth-fault protection for resistance-earthed three-phase systems
- Earth-fault protection on single-phase systems
- Main, feeder, or load protection
- Can reduce equipment damage and down time
Features:
- Microprocessor based - recalibration not required
- DFT (harmonic) filter prevents false operation
- Compatible with adjustable-speed drives and soft starters
- Self-test function
- 0- to 5-V analog output for external metering
- Selectable fail-safe (undervoltage) or non-fail-safe (shunt) operating mode
- Remote reset and indication
- Non-volatile trip memory
- Current-sensor verification
- DIN-rail, surface, and panel mounting
- Earth-fault trip level is 25 to 500 mA
- Australian AS/NZS 2081 compliant
- Five year warranty
Typical Applications:
Used on feeders, motors, generators, heating cable, SCR-controlled heaters, and ASD's
Minimum System Components:
The SE-703 requires an EFCT-series current sensor.
IEEE Device Numbers:
50G, 50N, 51G, 51N
Panel-Mount Adapter
Panel mount an SE-601 or SE-70X-series ground-fault monitor.
Watertight Cover
Allows relays to be used in a wet environment. NEMA 4 rating. Shown mounted on the MPU-16A.
Panel-Mount Adapter
Used for panel mounting an SE-601 or SE-70X-series ground-fault monitor. IP 53 and NEMA 3 rating, tamper resistant.
Voltage Clamp
Protects the EFCT input on the SE-701, SE-703, MPU-32, and FPU-32 when a current transformer other than the EFCT-1, EFCT-2, or EFCT-26 is used.
Data Sheet
Technical Information
Earth-Fault Current Transformer
Sensitive current transformer used to detect ground-fault current. Flux conditioner not required.
CAD Drawing
EFCT Flux Conditioner
Helps prevent saturation when installed in the EFCT-1 window.
EFCT Flux Conditioner
Dimensions: EFCT-1FC has a 70-mm (2.75") ID window.
Used with: EFCT-1
Used with: EFCT-1
Earth-Fault Current Transformer
Sensitive current transformer used to detect ground-fault current. EFCT-1FC flux conditioner available.
Earth-Fault Current Transformer
Sensitive current transformer used to detect ground-fault current. Flux conditioner included.
Earth-Fault Current Transformer