DUCT HUMIDITY-, TEMPERATURE- AND PRESSURE SENSORS ±500PA-MB
Maintenance-free duct sensor covering humidity, temperature and pressure
in one transducer. Microprocessor-controlled with Modbus RTU connection
in a resistant IP65 plastic housing with quick-locking screws and M16
cable gland for cable connection. Including mounting flange to detect
the relative humidity (0…100% RH) and the temperature (–35...+80 °C)
inside a tube, with an exchangeable plastic sinter filter. A
differential air pressure (max. ± 500 Pa) with connection nozzles for
pressure hose (Ø 6 mm). The duct sensor is applied in a non-aggressive
and dust-free environment and is suitable for installation in ceilings,
ducts and devices. International SI units (default) can be switched to
Imperial (via Modbus).
Measuring range: 0...100 % RH (humidity) / – 35...+80°C /-31… +176°F
(temperature)
Medium: clean air and non-aggressive, non-combustible gases
Deviation, humidity: typical ± 2.0 % (20...80 % RH) at +25°C/+77°F ,
otherwise ± 3.0 %
Deviation, temperature: typical ± 0.2 K at +25 °C / ± 0.4 °F at +77 °F
Pressure range: ± 500 Pa
Accuracy: 500 Pa/2.0 inWC: typical ± 13 Pa at +25 °C / ± 0.05 inWC at +
77 °F
Above- # below-pressure: max. ± 50 kPa
Power: 24VAC (± 20%) / 15…36VDC - 24DC <0,2W
Operation temperature: –30...+70 °C / –22...+158 °F
Media temperature –20...+50 °C / –4...+122 °F IP65 plastic housing two
M16 cable glands
Housing dimensions: 126 x 90 x 50 mm / 4.96 x 3.54 x 1.97 in

DUCT AIR QUALITY (VOC) AND CO2 SENSOR KLQ-CO2-MB
Maintenance-free duct sensor covering air quality (VOC 0…100 %), carbon
dioxide (CO2 0...5000 ppm) and atmospheric pressure (hPa). The air
quality is detected by a VOC sensor (mixed gas sensor for volatile
organic substances) and include an automatic calibration. It determines
the loading of the room air due to contaminated gases such as cigarette
smoke, body perspiration, exhaled breathing air, solvent vapors,
emissions etc. The air contamination can be selected into different
sensitivity ranges as low, medium or high. The CO2 measurement is
performed using an optical NDIR sensor (non-dispersive infra-red
technology), and the detection range is calibrated for standard
applications such as monitoring residential rooms and conference rooms.
A microprocessor-controlled solution with factory sensor calibration,
Modbus RTU connection in a resistant IP65 plastic housing with mounting
flange, quick-locking screws and two M16 cable gland for cable
connection. International SI units (default) can be changed to imperial
(via Modbus).
VOC Sensor: Volatile Organic Compounds sensor (metal oxide) with
automatic calibration
VOC measuring range: 0...100 % air quality; referred to calibrating gas
& selection of VOC sensitivities (low/medium/high)
VOC measuring accuracy: typical ± 20 % of final value (referred to
calibrating gas)
CO2 Sensor: optical NDIR sensor (non-dispersive infra-red technology)
including atmospheric pressure compensation (up to 1100 mbar) with
manual or automatic calibration
CO2 measuring range: 0...5000 ppm
CO2 measuring accuracy: typical ± 30 ppm (± 3 % of measured value) &
temperature dependence: ± 5 ppm pro °C or ± 0,5 % of measured value pro
°C (whichever is higher) & pressure dependence: ± 0.13 % per mm Hg
Medium: clean air and non-aggressive, non-combustible gases
Power: 24VAC/DC (± 10%) 24DC <1,6W
Operation temperature: –10...+60 °C / 14...+140 °F
T2-IP65 plastic housing two M20 cable glands
Housing dimensions: 126 x 90 x 50 mm / 4.96 x 3.54 x 1.97 in

VLT PTU 025 pressure transmitter unit
for external attachment to frequency converters
VLT HVAC Drive FC-102 IP55 / IP66 on one
the cable entries suitable for M25
- with four pressure sensors 2x 0-500 Pa;
1x 0-1000 Pa; 1x 0-2500 Pa
- eight hose connections D 5mm
- Can be positioned 360 ° around the longitudinal axis
Software version of the frequency converter FC-102
at least 5.20 am required
Mounting thread: M25
Dimensions LxW: 155mm x 38mm
(Length with hose support rail 260.5mm)
Degree of protection: IP66

VLT® Line reactor MCC 103 - line reactor for load sharing

MCC 103 line reactor is specially designed to match the Danfoss frequency converters VLT® AutomationDrive, VLT® AQUA Drive and VLT® HVAC Drive in applications using load sharing. Use the MCC 103 line reactor for up to 500V mains supply with 50 Hz or 60 Hz mains frequency. The MCC 103 line reactor is available with IP00 enclosure protection.

Specifications:,,
Rated voltage:,,380-500 V
Rated frequency: 50-60 Hz
Rated current,,174 A
Inductance L: 42 uH
Winding resistance: 0.9 mOhm
L tolerance: ±10%
Mains connection - type: Bus-bar
Mains connection - dimension: 1 x Ø7.1
Mains connection - tightening torque: - Nm
PE connection - type: Bolt connection
PE connection - dimension: M5
Ambient temperature without derating: -10 to +45 C°
Derating > 45 °C: 2.5%/K
Derating > 1km: 5%/1km
Type of cooling: Cooled by natural convection
Operating conditions: Permanent operation with 100% load
Weight: 10.8 kg
Dimensions - HxWxD: 160x185 x140 mm
Enclosure degree: IP00
Mounting,,: Vertical or horizontal,,