Product Description
The MFR 012 electromechanical hygrostat is designed to control the relative humidity inside enclosures. When connected to an enclosure heater (dehumidifier), it will energize the heater at the humidity set point in order to raise the dew point. This helps prevent damage and mal-function of electronic components caused by condensation and corrosion. 1)
The MFR 012 can also be used to control cooling fans, warning lights or other devices.
Technic data
|
Switch difference* |
4% RH (±3% tolerance) |
|
Permissible air velocity |
15m/sec |
|
Contact type |
change-over contact |
|
Service life |
> 50,000 cycles |
|
Min. switching capacity |
20V AC/DC 100 mA |
|
Max. switching capacity |
25VAC, 5A |
|
|
DC 20W |
|
Connection |
3-pole terminal for 2.5mm², clamping torque 0.5Nm max.: rigid wire 2.5mm², stranded wire (with wire end ferrule) 1.5mm² |
|
Mounting |
clip for 35mm DIN rail, EN60715 |
|
Casing |
plastic according to UL94 V-0, light grey |
|
Dimensions |
67 x 50 x 38mm |
|
Weight |
approx. 60g |
|
Fitting position |
variable |
|
Operarting/Storage temperature |
0 to +60°C (+32 to +140°F) / -40 to +60°C (-40 to +140°F) |
|
Operating / Storage humidity |
max. 90 % RH (non-condensing) |
|
Protection type |
IP20 |
|
Approvals |
UL File No. E164102 |
|
*at 50% RH |
|
|
Art. No. |
Setting range |
|
01220.0-00 |
35 to 95% RH |
Size
4.Example of connection:
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