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BF451, digital thermostat.
BF451 is a digital wall thermostat equipped with
alphanumeric backlit display with two lines to
facilitate the displaying of all the settings and
simplify programming.
The device is equipped with double hysteresis and
can be used for heating or cooling control (for the
control of both we recommend the BF454 model).
The maximum and minimum temperatures are
registered by the last turning-on or by the last
deletion.
The message displayed on the first line can be
personalised by the user, a useful function if more
devices are installed.
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Application sectors
Heating, Air conditioning, Refrigeration, Drying
Technical Characteristics
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| Supply Voltage |
230 V - 50 Hz |
| Consumption |
3 VA |
| Type of output |
1 relay, exchange contact, max 3A |
| Type of degree |
°C (°F optional) |
| Probe Range |
-40 to 120 °C |
| Hysteresis |
Double |
| Control unit function range |
0-45 °C with 0-90% humidity |
| Displays |
2X16 alphanumeric backlit display + 2 leds |
| Connection of external probe |
2-wire connection (max recommended distance 60m) |
| Type of connections |
2,5 mm² screw clamps |
| Type of control unit installation |
Wall installation |
| Control unit protection level |
IP55 |
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