The UPR OCR Checker can check the trip time of LTD, STD, INST for Hyundai Air Circuit Breakers series HGN and UAN series. The characteristics of electronic trip relay can be checked in the field.
Specifications
| Item | Specification |
| External power | Input 110-230VAC 50-60Hz |
| Tripping time measure range | 0-999.999sec |
| Applying voltage | 0mV-3000mV |
| Output precision | UPR 4.0/3.0 +/15% (200mV-3000mV |
| Magnitude | H: 193.40mm / W:11,60 / D: 44mm |