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ETC-974 defrost temperature controller
▇ Model number and parameters
| Model number | Main function | Online store: |
| ETC-974 | Cooling, defrosting, fan, dual sensors, temperature overrange and sensor fault alarms | US $15.59/ pieceOrder (3) |
▇ General
| Model number | ETC-974 |
| Measure range | -50 to 120 ℃ |
| Resolution | 0.1℃ |
| Accuracy | NTC: ±0.5℃, others: ±1 ℃ |
| Supply voltage | 220Vac, 110Vac, 50/60Hz; 12-24Vac/dc |
| Power consumption | Less than 5W |
| Output types | Three mechanical relays |
| Input types | 2pcs 2m cable NTC (included) |
| Panel size | 77x32 mm |
| External dimensions | 77x32x58 mm |
| Perforation dimensions | 71 10x29 10 mm |
| Control method | ON/OFF Control |
| Setting method | Touch switch |
| Indication method | Three-digit LED + Minus digit + Status indicator light (set; refrigeration; defrost; fan) |
| Front panel IP Rating | IP65 |
| Operating temperature | -5 to 55 ℃ (23 to 131 ℉) |
| Operating humidity | 10% to 90% RH, non-condensing |
| Storage temperature | -25 to 75 ℃ (-13 to 167 ℉) |
| Alias name | ETC-974 freezer temperature controller, defrost thermostat, freezer thermostat |
▇ Output type and description
| Electromagnetic relay for compressor | Contact rating: 10A at 220Vac |
| Electromagnetic relay for fan | Contact rating: 10A at 220Vac |
| Electromagnetic relay for defrosting | Contact rating: 10A at 220Vac |
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