Omega Products MFR0122 User Manual
MECHANICAL HYGROSTAT
23
L
%
rF/RH
.
40
50
90
80
70
60
50 (1.97)
38 (1.5)
67 (2.64)
MFR0122
$
78
⻬ Adjustable Relative
Humidity Range
⻬ High Switching Capacity
⻬ DIN Rail Mountable
The MFR0122 is designed to
control the relative air humidity
inside of enclosures. When
connected to an enclosure heater,
(de-humidifier), it will turn the heater
on at the set humidity level in order
to raise the dew point. This helps
prevent damage and malfunction of
electronic components caused by
condensation and corrosion. The
MFR0122 can also be used to
control cooling fans, warning lights
or other devices.
MFR0122, $78,
shown actual size.
Specifications
Adjustment Range: 35 to 95%
(±3.0%) relative humidity
Switching Difference (Hysteresis):
Approx 4% RH @ 50% relative humidity
Permissible Air Velocity: 50 ft/sec
(15 m/s)
Maximum Switching Voltage: 250 Vac
Attention: 250 V should only be switched
in a non-condensing environment
Contact Type: Change-over contact
Contact Resistance: <10 mOhm
Service Life: 100,000 cycles
Minimum Switching Capacity:
100 mA @ AC/DC 20 V
Maximum Switching Capacity:
5 A @ AC 230 V (resistive load)
1.0 A @ AC 230 V (inductive load
at cos j = 0.8); DC 20 W
EMI/EMC Compliance: EN 55014-1-2,
EN 61000-3-2, EN 61000-3-3
Connection: 3-pole terminal, 3 x AWG
14 max [2.5 mm² (0.1 in²)]
Mounting: Clip for 35 mm (1.4")
DIN rail (EN 50022)
Dimensions: 67 H x 50 W x 38 mm D
(2.64 x 1.97 x 1.5")
Housing: Clip for 35 mm DIN rail
(EN 50022)
Weight: 60 g (2 oz)
Operating Temperature:
0 to 60°C (32 to 140°F)
Storage Temperature:
-20 to 80°C (-4 to 176°F)
Protection Type: NEMA 2 (IP20)
Application Examples:
• Electrical and Electronic Enclosures
• Telecommunication Systems
• Display Panels
• Ticket Dispensers
• Automatic Teller Machines (ATM’s)
• Access and Parking Control Systems
To Order (Specify Model Number)
Model No. Price Description
MFR0122 $78 Mechanical humidity control, SPDT,
Comes complete with operator’s manual.
Ordering Example: MFR0122, mechanical hygrostat, $78.
Dimensions:
mm (in)
HT-51
Note: The critical relative humidity for most
components is 65%. Above 65% RH,
condensation can cause malfunction of
electronic equipment. Long-term, this can
lead to corrosion and permanent damage
of electronic components and systems.
AVAILABLE FOR FAST DELIVERY!
35 to 100% RH, 20 Vdc to 230 Vac
One Omega Drive | Stamford, CT 06907 | 1-888-TC-OMEGA (1-888-826-6342) | info@omega.com
EPG05
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