Relative Humitity Controller For Enclosures

Description

The MFR012 is designed to control therelative air humidity inside of enclosures.When connected to an enclosure heater,(de-humidifier), it will turn the heater on atthe set humidity level in order to raise thedew point. This helps prevent damage andmalfunction of electronic componentscaused by condensation and corrosion. TheMFR012 can also be used to control coolingfans, warning lights or other devices.

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: Service Life: 100,000 cycles
Minimum Switching Capacity: 100 mA @ AC/DC 20 V
Maximum Switching Capacity: 5A @ AC 230V (resistive load), 1.0A @ AC 230V (inductive load at cos j = 0.8) DC 20W
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 35mm (1.4″) DIN rail (EN 50022)
Dimensions: 67H x 50W x 38 mmD (2.64 x 1.97 x 1.5″)
Housing: Clip for 35mm DIN rail (EN 50022)
Weight: 60g (2oz)
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:
&nbsp&nbsp&nbsp• Electrical and Electronic Enclosures
&nbsp&nbsp&nbsp• Telecommunication Systems
&nbsp&nbsp&nbsp• Display Panels
&nbsp&nbsp&nbsp• Ticket Dispensers
&nbsp&nbsp&nbsp• Automatic Teller Machines (ATM’s)
&nbsp&nbsp&nbsp• Access and Parking Control Systems
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.