Get Special Pricing!
QFM81.21 | Duct Hygrostat, 30 to 90% RH | Siemens
Hygrostats are used for controlling and monitoring relative humidity in facilities under HVAC control. They ensure duct humidity control within the selectable range of 15 to 95% relative humidity. The hygrostats do this by controlling humidification or dehumidification equipment. Duct hygrostats can be used as minimum or maximum limiters in the supply air duct.
The photo is for representation purposes only and may not be a photo of product being purchased.
Search products similar to QFM81.21
Documents and manuals
Siemens QFM81.21 Documents
Datasheet(Duct Hygrostats QFM81)Datasheet(QFM81 Series Duct Hygrostats Technical Instructions)Declaration of conformity(EU Declaration of Conformity QFM81.2 / QFM81.21)Installation instruction(QFM81.2. QFM81.21 Duct Hygrostats Installation Instructions)Mounting instruction(Duct humidistat) Installation Instructions More Info
Overview
Details for QFM81.21
Duct Hygrostat, 30 to 90% RH
Specifications
- Degree of protection
- IP55
- Digital outputs
- CO: 1 , Potential-free
- Setpoint setting range
- 15…95 % r.h.
- Switching differential
- 4 % r.h.
- Operating voltage
- Contact Rating: 3A@ 24 Vac/Vdc Max; 100mA Min
- Immersion length
- 130…156 mm
- Dimensions (W x H x D)
- 73 x 140 x 64 (246) mm
- Digital output, switching current
- 5 (3)A
- Digital output, switching voltage
- 250 V
Reviews
Recently Viewed
New Arrivals
![Generic BACnet Router BACNET_ROUTER BACnet Router | Generic | BACnet/IP to BACnet/MSTP | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/bacnet-router-generic_large.jpg?v=1719983610)
BACNET_ROUTER | BACnet Router | Generic | BACnet/IP to BACnet/MSTP | Generic BACnet Router
Brand: Generic BACnet Router
SKU: BACNET_ROUTER![Belimo AFB24-SR Damper Actuator | 180 in-lb | Spg Rtn | 24V | Modulating | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/AFB24-SR_Fail-Safe_Actuator-product_retina_0f74f686-50ae-4b7f-82ca-3376950d45fe_large.jpg?v=1719983659)
AFB24-SR | Damper Actuator | 180 in-lb | Spg Rtn | 24V | Modulating | Belimo
Brand: Belimo
SKU: AFB24-SR![Belimo AMB24-3 Damper Actuator | 180 in-lb | Non-Spg Rtn | 24V | On/Off/Floating Point | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/AMB..-3_Non_Fail-Safe_Actuators-product_retina_5f2512cc-bfd5-4abf-910e-ebcbe32791d2_large.jpg?v=1719983724)
AMB24-3 | Damper Actuator | 180 in-lb | Non-Spg Rtn | 24V | On/Off/Floating Point | Belimo
Brand: Belimo
SKU: AMB24-3![Belimo ARX24-MFT Valve Actuator | Non-Spg | 24V | MFT | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/ARQX24-MFT_web_f0891794-a597-47a6-b297-875e2b799dc9_large.png?v=1719983790)
ARX24-MFT | Valve Actuator | Non-Spg | 24V | MFT | Belimo
Brand: Belimo
SKU: ARX24-MFT![Siemens AQF3100 Radiation/Sun Shield for Outside Air RH Sensors | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/AQF3100_large.jpg?v=1692721436)
AQF3100 | Radiation/Sun Shield for Outside Air RH Sensors | Siemens
Brand: Siemens
SKU: AQF3100![Siemens QAA2280.FWSC Room Temp Sensor, Full Feature, Siemens Logo, Tool Port, TEC Controllers | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/QAA2280.FWSC_large.jpg?v=1692722917)
QAA2280.FWSC | Room Temp Sensor, Full Feature, Siemens Logo, Tool Port, TEC Controllers | Siemens
Brand: Siemens
SKU: QAA2280.FWSCPeople Also Searched
QFM81.21
Siemens QFM81.21
QFM81.21 price
Siemens QFM81.21 price