Ground Fault Relay K6EL CSM K6EL DS E 9 4 Economical, Compact, High-performance, DIN 48 48-mm Ground Fault Relay for Low Voltages Performs continuous monitoring and detection of ground faults in low-voltage circuits due to the deterioration of insulation in electrical devices. Higher reliability ensured with improved resistance to high-fre- quency noise when used for inverter loads. Ground Fault Relays and through-type ZCTs (zero-phase cur- rent transformers) are mutually compatible. The through-type ZCTs are equipped with test terminals, allow- ing operation tests for Ground Fault Relays to be performed with ease. Model Number Structure Model Number Legend K6EL- 1 23 1. Ground Fault Relay 3. Sensed Current 2. Operating Time and Reset Method 30: 30 mA (fixed) None: 0.1 s manual reset 100: 100 mA/200 mA (switchable) A: 0.3/0.8 s (switchable) manual reset 200: 200 mA/500 mA (switchable) 500: 500 mA/1,000 mA (switchable) Ordering Information List of Models Ground Fault Relays Type High-sensitivity Medium-sensitivity models models Sensed current 30 mA (fixed) 100 mA/200 mA 200 mA/500 mA 500 mA/1,000 mA Type Operating time (switchable) (switchable) (switchable) High-speed models Less than 0.1 s K6EL-30 K6EL-100 K6EL-200 K6EL-500 Delayed models 0.3/0.8 s (switchable) --- K6EL-A100 K6EL-A200 K6EL-A500 ZCTs (Zero-phase Current Transformers) Type Indoor through-type models Indoor separate-type models Rated current Sensed current Model Diameter of through-hole Model Diameter of through-hole 50 A OTG-L21 21 mm --- --- 100 A OTG-L30 30 mm --- --- 200 A OTG-L42 42 mm OTG-CN52 52 mm 400 A OTG-L68 68 mm OTG-CN77 77 mm 600 A OTG-L82 82 mm OTG-CN112 112 mm 1,000 A OTG-L156 156 mm --- --- 1K6EL Ground Fault Relay and ZCT Combinations (OK: Compatible) Ground Fault Relay K6EL-30 K6EL-100, -200, -500 ZCT K6EL-A100, -A200, -A500 OTG-L21 (50 A) OK OK OTG-L30 (100 A) OK OK OTG-L42 (200 A) OK OK OTG-L68 (400 A) --- OK OTG-L82 (600 A) --- OK OTG-L156 (1,000 A) --- OK OTG-CN52 (200 A) --- OK OTG-CN77 (400 A) --- OK OTG-CN112 (600 A) --- OK Note: 1. OK indicates groupings that can be combined freely. 2. Combinations with the OTG-LA are also possible. Options Flush Mounting Adapters Front Cover Model Model Y92F-30 Y92A-48B (Hard Cover) Y92F-71 Y92A-48D(Soft Cover) Note: The Front Cover can be attached when the Y92F-30 Adapter is used to mount the Ground Fault Relay to a panel. Specifications Ground Fault Relay Ratings Item Type High-speed models Delayed models Control power supply 100/110 VAC or 200/220 VAC, 50/60 Hz (same for all) Rated current Depends on the ZCT Sensed current 50% to 100% of the rated sensed current Non-operating current 0% to 50% of the rated sensed current Rated short-time current 2,500 A Ground fault indication method LED (red) Test method Relay operation confirmed using a test button. (Independent of ZCT connection.) Reset method Manual Either press the reset button or turn the control power supply OFF and ON again. Built-in Contact form SPDT+SPST-NO contacts Carrying current 5A Rated load cos = 1 cos = 0.4 (L/R = 7 ms) 240 VAC 5 A 2 A 110 VDC 0.3 A 0.2 A 30 VDC 5 A 3 A Power (VA) consumption 3VA max. Weight Approx. 110 g 2