STEGO MFR 012 / KFR 012 Mechanical Humidity Regulators

Concise operating instructions for STEGO MFR 012 and KFR 012 mechanical humidity regulators. Learn about application, safety, and installation for controlling heating, cooling, and ventilation systems.

Application

Mechanical humidity regulators are used to switch heaters, cooling equipment, filter fans, or signal devices on or off when an adjustable or preset reference humidity value is exceeded or undershot. These regulators are intended for use only in stationary, sealed housings for electrical devices.

Safety Considerations

Installation must only be performed by qualified electrical technicians in accordance with national power-supply guidelines (IEC 60364).
Ensure safety measures according to VDE 0100.
Strictly observe the technical specifications on the type plate.
No changes or modifications are permitted on the device.
In case of apparent damage or malfunction, do not repair or operate the device. Dispose of the device.

Installation Guidelines

The regulator should be mounted in the lower third of the switch cabinet.
The device must not be covered.
The device must not be operated in environments with aggressive atmospheres.

Technical Specifications

The device features a dial for setting humidity levels, indicated by "% rF/RH". It connects to electrical systems via terminals for Line (L) and Neutral (N), controlling an external load.

Electrical Ratings

Minimum: AC/DC 20V, 100mA
Maximum: AC 250V, 5A; DC 20W

Environmental & Physical

Humidity Range: Max. 95% rH
Operating Temperature: 0°C to +60°C (32°F to +140°F)
Connection Torque: 0.5 Nm max. (4.4 lb-in)
Wire Size: Suitable for 1.5mm² and 2.5mm² conductors.
Ingress Protection: IP20
Standard: DIN EN 60715
Weight: MFR 012: 60g, KFR 012: 40g

Manufacturer Information

STEGO Elektrotechnik GmbH

Kolpingstrasse 21

74523 Schwaebisch Hall, Germany

Website: www.stego.de

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