Schneider South Korea three and EOCR3E420-WRZ7 digital display current relay â– 3E420: power distribution board integrated installation â– MCU (microprocessor) based products Schneider South Korea three and EOCR3E420-WRZ7 digital display current relay
Sanhe EOCR Co., Ltd. is Korea's largest manufacturer of motor protectors. The company was founded in 1981 by Dr. Jin Renxi (CEO of Schneider Electric Group Korea).
In 2001, in order to develop the company into a global, strategic enterprise, he joined the Schneider Electric Group of France.
EOCR's main products are electronic motor protection relays, electronic overcurrent relays, electronic undercurrent relays, electronic undervoltage relays, other protection and monitoring devices, and current transformers.
EOCR3E420-H13Q EOCR-3E420 EP 100 3CT 220 (ONLY, EOCR3E420-H16Q EOCR-3E420 EP 100 3CT 110, EOCR3E420-H23Q EOCR-3E420 EP 200 3CT 220, EOCR3E420-H26Q EOCR-3E420 EP 200 3CT 110, EOCR3E420-H29Q EOCR -3E420 EP 200 3CT 24, EOCR3E420-H33Q EOCR-3E420 EP 300 3CT 220, EOCR3E420-H36Q EOCR-3E420 EP 300 3CT 110, EOCR3E420-WR3 EOCR-3E420 WR 220 (ONLY), EOCR3E420-WR3Q EOCR-3E420 EP WR 220 (ONLY), EOCR3E420-WR6Q EOCR-3E420 EP WR 110, EOCR3E420-WR9Q EOCR-3E420 EP WR 24
Intensive design
â– 3E420: Integrated panel mounting â– MCU (microprocessor) based products
â– Function to display and memorize fault/trip cause â– Wide current adjustment range and alarm output â– Manual instant reset / electric remote reset
â– Multi-protection function with 4-20mA output function â– Self-test function
â– Fail-safe/no-fail-safe mode of operation
EOCR-3E420 Protection Project
| Protection project | Action (trip) time |
| Overcurrent | O-TIME |
| Undercurrent | U-TIME |
| Stall | Lock: Within 0.5 seconds after TIME; Stall: 0.5, 1-10 seconds |
| Missing phase | Within 3 seconds |
| Reverse phase | 0.1-0.3 seconds |
| Phase imbalance | Less than 8 seconds |
EOCR-3E420 technical parameters
| Current setting | range | ||
| Overcurrent | Definite time: 0.5-60A, greater than 60A using external CT Inverse time limit: 0.5-32A, about 32A using external CT | ||
| Undercurrent | Off/0.5- less than the "OC" setting | ||
| Phase imbalance | 5%-50%/Off | ||
| time setting | Start delay time (dt) | Off-200 seconds adjustable | |
| Overcurrent trip delay (ot) | 0.2-30 seconds | ||
| Undercurrent trip delay (ut) | 0.5-30 seconds, definite time, such as "UC" is Off, then "UT" is automatically set to Off | ||
| error | Current | 1 | |
| time | t"3s: ±0.2s, t>3s: ±5% | ||
| Control power supply | AC220V, ±15%, 50/60Hz | ||
| Power consumption | Less than 7VA | ||
| Relay output | OC/UC | 2-SPST | 3A/250VAC resistive |
| surroundings | temperature | Storage | -30-80 ° C |
| run | -20-60 ° C | ||
| humidity | No condensation state 30-85% RH | ||
| Analog output | 4-20mA | ||
| display | 7-segment LED | Three-phase current, trip cause, running time | |
| Dynamic amplitude indicator | The load system is the current set value (50%-100%) | ||
| insulation | insulation | Between the outer casing and the line | Greater than DC500V 10 megohms |
| Compressive strength | Between the outer casing and the line | 2KV 50/60Hz 1 minute | |
| Output contact | 1KV 50/60Hz 1 minute | ||
| Line room | 2KV 50/60Hz 1 minute | ||
Schneider Korea Sanwa EOCR-3E420/FE420 Typical Reference Diagram / Wiring Diagram / Installation Dimensions
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