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TC70 is a specialized device for control and protection of three-phase electric motors, designed for mounting on a DIN rail. The device monitors phases and neutral and switches off its relay output in case of emergency. An additional thermistor input with a positive TC (posistor) enables monitoring of the motor temperature. An inexpensive but reliable device, the TC70, apart from electric motors, can also be used anywhere where it is necessary to monitor the condition of the three-phase power supply.
| Релеен изход | |
|---|---|
| Аналогов вход | RTD PTC 1k, RTD PTC 2k |
| Захранване | 230 VAC |
| Корпус | 45x78x108 mm |
| Монтаж | DIN rail |
| Input | |
| LINE control input (3-phase) | 3 x 380 VAC ± 15% |
| NEUTRAL control input | 220 VAC ± 15% |
| Temperature input | PTC (RPTC at 25 °C = 1k, 2k, or other) |
| Output | |
| Relay electromechanical | 3A/250V w/ NO/NC contact |
| Solid state relay (SSR) | 1A/250VAC |
| Output function | switches off in situations (1): (a) missing line (R/S/T) or neutral (N), (b) ) line voltage exceeds 270 ± 10 V, (c) line voltage drops below 170 ± 10 V, (d) line order is not RST, STR, or TRS |
| Temperature control | switches off when PTC indicates 70 °C |
| Indication | LED for relay ON |
| Power supply | |
| Supply voltage | 230 VAC +10/-15% |
| Consumption | max. 4 VA |
| Operating conditions | |
| Ambient temperature | -10…65 °C |
| Ambient humidity | 0…85 %RH |
| Design and materials | |
| Case material | plastic |
| Mounting | on 35 mm DIN rail |
| Wiring | screw terminals |
| Dimensions | 45x78x108 mm |
| Weight | макс. 300 g |
| Protection, case/terminals | IP40 / IP00 |
(1) Other phase voltages than the described in points (b) and (c) may be monitored if requested.
