ETR 77.008-5
Universal temperature controller, -50-+50…°C, hysteresis 0.5-5K, internal setting
Electronic universal temperature controller. Various sensor versions allow universal use in heating, ventilation, air-conditioning, and refrigeration technology as well as in machinery and apparatus engineering. The heating status is indicated by a red LED. Sensors are not included in the scope of delivery. The sensor cable can be extended up to 100 m using a cable cross-section of min. 1.5 mm².
Universal temperature controller, -50-+50…°C, hysteresis 0.5-5K, internal setting
Art.-Nr.: D4770014
Technical data
| Actual temperature display | No |
| Ambient temperature, lower value | -20 °C |
| Ambient temperature, upper value | 50 °C |
| Assembly | Controller without sensor |
| Bearing temperature, lower value | -20 °C |
| Bearing temperature, upper value | 50 °C |
| Cable entry | 1 x M20x1,5; 1 x M12x1,5 |
| Colour | Grey |
| Control range, lower value | -50 °C |
| Control range, upper value | 50 °C |
| Cooling control function | Yes |
| Degree of contamination | 2 |
| Depth | 56 mm |
| Electric connection | Screw terminals |
| Electronic control | Yes |
| External setting | No |
| Heating control function | Yes |
| Height | 169 mm |
| Housing material | Plastic |
| Internal setting | Yes |
| Maximum air humidity (non-condensing) | 95 % r.H |
| Maximum switching current | S:10 (3) A ; O: 5 (1,5) A |
| Maximum switching voltage | 230 V AC, 50 Hz |
| Mounting / attachment | Wall mounting |
| Number of control ranges | 1 |
| Number of outputs | 2 |
| Operating voltage | 230 V AC / 50 Hz |
| Operation | Internal setpoint adjuster |
| Output signal | Switching |
| Potential free switching contact | Yes |
| Protection class | II, following appropriate mounting |
| RAL colour number (similar) | 7016/7035 |
| Rated impulse voltage | 4000 V |
| Scale | Degree Celsius |
| Sensor element | PTC |
| Sensor type | KTY 81-121 (sensor 51) |
| Suitable as 2-point controller | Yes |
| Surface properties | Matt |
| Switching contact | Two-way contact |
| Switching difference, can be adjusted | Yes |
| Switching differential adjustable from | 0,5 K |
| Switching differential adjustable up to | 5 K |
| Switching element | Relay |
| Switching power | 2300 W bzw. 1150 W |
| Type of protection | IP65 |
| Width | 96 mm |
| With explosion protection | No |
| Circuit diagram | |
| Photo | Type | Articlenumber | Features | Kind |
|---|---|---|---|---|
 | STF-51 | SN080500 | Radiation temperature sensor, 2x KTY-81-121 | Accessories |
 | KF-51/6 | G9031453 | Cable temperature sensor, KTY81-121, 6m, silicon sensor cable, -50...+150...°C | Accessories |
 | AF-51 | G9040420 | External temperature sensor, KTY81-121 | Accessories |
| KF-51 | G9031452 | Cable temperature sensor, KTY81-121, 1.5m, silicon sensor cable, -50...+150...°C | Accessories |
 | ALF-51 | G9050210 | Contact temperature sensor, KTY81-121 | Accessories |
 | BTF2-Y81/121-0000 | SA140017 | Room temperature sensor, KTY81-121, surface-mounted super flat | Accessories |
 | FUFY 81/121-0000 | SN090201 | Room temperature sensor, KTY81-121, flush-mounted, cover 50x50mm, pure white gloss | Accessories |
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