Search

EUR

British Pound
EURO
USD

Sign in or Register

Categories

Clearance and Special Offers

Clearance and Special Offers

Siemens Connected Home

Siemens Connected Home

BELIMO

Actuators
Retrofit
Sensors Meters
Systems
Valves

Actuators
Retrofit
Sensors Meters
Systems
Valves

BELIMO

BELIMO

Actuators
Retrofit
Sensors Meters
Systems
Valves

Actuators
Retrofit
Sensors Meters
Systems
Valves

SIEMENS

Accessories
- AGA
- AGF
- AGG
- ALT
- Analog Time Switch
- ASK
- ASZ
- Installation set
- Miscellaneous
- View All
Communication units
- OCI
- OZW
- View All
Controllers
Damper actuators
- Accessories
- Accessories for Siemens damper actuators
- GAP
- GBB
- GCA
- GDB
- GEB
- GGA
- GIB
- GLB
- GLD
- GMA
- GNA
- GNP
- GPC
- GQD
- GSD
- View All
Electric Actuators
- SAL
- SAS
- SAV
- SAX
- SAY
- SBC
- SFA
- SFP
- SQL
- SQV
- SSA
- SSB
- SSC
- SSP
- STA
- STC
- SUA
- View All
Electronic Heat Meter
- WFM
- WFN
- WFZ
- WZT
- View All
Gas detection system
HVAC Controllers and accessories
- RLU
- RMH
- RMU
- RMZ
- RTN
- RXB
- View All
Miscellaneous
Oil and Gas firing devices
- LAE
- LAL
- LEC
- LFE
- LFL
- LGB
- LGI
- LME
- LMO
- LOA
- LOK
- Siemens Burner controller LGK
- View All
Sensors
Siemens Burner parts
- AGK
- AGM
- AGQ
- ARG
- KF
- LDU
- LFS
- QPL
- QRB
- QRC
- RWF
- View All
Siemens drive motors
- SKB
- SKC
- SKD
- SKL
- SKP
- View All
Siemens QRA flame detectors
Siemens RWB Daily Programmer
Siemens Servomotors
- SQK
- SQM
- SQN
- View All
Thermostats
Ultrasonic heat and cooling energy meter
- UH50
- WSM5
- View All
Valves
Variable Speed Drive for pumps and fans
Water Meter
- WFK
- WFW
- View All

Accessories
- AGA
- AGF
- AGG
- ALT
- Analog Time Switch
- ASK
- ASZ
- Installation set
- Miscellaneous
- View All
Communication units
- OCI
- OZW
- View All
Controllers
Damper actuators
- Accessories
- Accessories for Siemens damper actuators
- GAP
- GBB
- GCA
- GDB
- GEB
- GGA
- GIB
- GLB
- GLD
- GMA
- GNA
- GNP
- GPC
- GQD
- GSD
- View All
Electric Actuators
- SAL
- SAS
- SAV
- SAX
- SAY
- SBC
- SFA
- SFP
- SQL
- SQV
- SSA
- SSB
- SSC
- SSP
- STA
- STC
- SUA
- View All
Electronic Heat Meter
- WFM
- WFN
- WFZ
- WZT
- View All
Gas detection system
HVAC Controllers and accessories
- RLU
- RMH
- RMU
- RMZ
- RTN
- RXB
- View All
Miscellaneous
Oil and Gas firing devices
- LAE
- LAL
- LEC
- LFE
- LFL
- LGB
- LGI
- LME
- LMO
- LOA
- LOK
- Siemens Burner controller LGK
- View All
Sensors
Siemens Burner parts
- AGK
- AGM
- AGQ
- ARG
- KF
- LDU
- LFS
- QPL
- QRB
- QRC
- RWF
- View All
Siemens drive motors
- SKB
- SKC
- SKD
- SKL
- SKP
- View All
Siemens QRA flame detectors
Siemens RWB Daily Programmer
Siemens Servomotors
- SQK
- SQM
- SQN
- View All
Thermostats
Ultrasonic heat and cooling energy meter
- UH50
- WSM5
- View All
Valves
Variable Speed Drive for pumps and fans
Water Meter
- WFK
- WFW
- View All

SIEMENS

SIEMENS

Accessories
- AGA
- AGF
- AGG
- ALT
- Analog Time Switch
- ASK
- ASZ
- Installation set
- Miscellaneous
- View All
Communication units
- OCI
- OZW
- View All
Controllers
Damper actuators
- Accessories
- Accessories for Siemens damper actuators
- GAP
- GBB
- GCA
- GDB
- GEB
- GGA
- GIB
- GLB
- GLD
- GMA
- GNA
- GNP
- GPC
- GQD
- GSD
- View All
Electric Actuators
- SAL
- SAS
- SAV
- SAX
- SAY
- SBC
- SFA
- SFP
- SQL
- SQV
- SSA
- SSB
- SSC
- SSP
- STA
- STC
- SUA
- View All
Electronic Heat Meter
- WFM
- WFN
- WFZ
- WZT
- View All
Gas detection system
HVAC Controllers and accessories
- RLU
- RMH
- RMU
- RMZ
- RTN
- RXB
- View All
Miscellaneous
Oil and Gas firing devices
- LAE
- LAL
- LEC
- LFE
- LFL
- LGB
- LGI
- LME
- LMO
- LOA
- LOK
- Siemens Burner controller LGK
- View All
Sensors
Siemens Burner parts
- AGK
- AGM
- AGQ
- ARG
- KF
- LDU
- LFS
- QPL
- QRB
- QRC
- RWF
- View All
Siemens drive motors
- SKB
- SKC
- SKD
- SKL
- SKP
- View All
Siemens QRA flame detectors
Siemens RWB Daily Programmer
Siemens Servomotors
- SQK
- SQM
- SQN
- View All
Thermostats
Ultrasonic heat and cooling energy meter
- UH50
- WSM5
- View All
Valves
Variable Speed Drive for pumps and fans
Water Meter
- WFK
- WFW
- View All

Accessories
- AGA
- AGF
- AGG
- ALT
- Analog Time Switch
- ASK
- ASZ
- Installation set
- Miscellaneous
- View All
Communication units
- OCI
- OZW
- View All
Controllers
Damper actuators
- Accessories
- Accessories for Siemens damper actuators
- GAP
- GBB
- GCA
- GDB
- GEB
- GGA
- GIB
- GLB
- GLD
- GMA
- GNA
- GNP
- GPC
- GQD
- GSD
- View All
Electric Actuators
- SAL
- SAS
- SAV
- SAX
- SAY
- SBC
- SFA
- SFP
- SQL
- SQV
- SSA
- SSB
- SSC
- SSP
- STA
- STC
- SUA
- View All
Electronic Heat Meter
- WFM
- WFN
- WFZ
- WZT
- View All
Gas detection system
HVAC Controllers and accessories
- RLU
- RMH
- RMU
- RMZ
- RTN
- RXB
- View All
Miscellaneous
Oil and Gas firing devices
- LAE
- LAL
- LEC
- LFE
- LFL
- LGB
- LGI
- LME
- LMO
- LOA
- LOK
- Siemens Burner controller LGK
- View All
Sensors
Siemens Burner parts
- AGK
- AGM
- AGQ
- ARG
- KF
- LDU
- LFS
- QPL
- QRB
- QRC
- RWF
- View All
Siemens drive motors
- SKB
- SKC
- SKD
- SKL
- SKP
- View All
Siemens QRA flame detectors
Siemens RWB Daily Programmer
Siemens Servomotors
- SQK
- SQM
- SQN
- View All
Thermostats
Ultrasonic heat and cooling energy meter
- UH50
- WSM5
- View All
Valves
Variable Speed Drive for pumps and fans
Water Meter
- WFK
- WFW
- View All

Siemens CPS Fire Safety

Siemens CPS Fire Safety

AlgoRex
Cerberus ECO
Cerberus FIT
- Accessories
- O modules
- Panels
- View All
Cerberus PRO
DMS8000
Legacy
Miscellaneous
Sinteso
Special detection
Synova
X100
- Spare parts
- View All
XC10

AlgoRex
Cerberus ECO
Cerberus FIT
- Accessories
- O modules
- Panels
- View All
Cerberus PRO
DMS8000
Legacy
Miscellaneous
Sinteso
Special detection
Synova
X100
- Spare parts
- View All
XC10

Siemens CPS Fire Safety

Siemens CPS Fire Safety

AlgoRex
Cerberus ECO
Cerberus FIT
- Accessories
- O modules
- Panels
- View All
Cerberus PRO
DMS8000
Legacy
Miscellaneous
Sinteso
Special detection
Synova
X100
- Spare parts
- View All
XC10

AlgoRex
Cerberus ECO
Cerberus FIT
- Accessories
- O modules
- Panels
- View All
Cerberus PRO
DMS8000
Legacy
Miscellaneous
Sinteso
Special detection
Synova
X100
- Spare parts
- View All
XC10

HONEYWELL

Honeywell 2-Way and 3-Way Valves
Honeywell Ignition Controls
Honeywell servo motor
Satronic
- DKO
- DKW
- Miscellaneous
- MMG
- MMI
- TF
- TFI
- TMG
- View All
Gas control blocks
Miscellaneous
Honeywell Solenoid valves

Honeywell 2-Way and 3-Way Valves
Honeywell Ignition Controls
Honeywell servo motor
Satronic
- DKO
- DKW
- Miscellaneous
- MMG
- MMI
- TF
- TFI
- TMG
- View All
Gas control blocks
Miscellaneous
Honeywell Solenoid valves

HONEYWELL

HONEYWELL

Honeywell 2-Way and 3-Way Valves
Honeywell Ignition Controls
Honeywell servo motor
Satronic
- DKO
- DKW
- Miscellaneous
- MMG
- MMI
- TF
- TFI
- TMG
- View All
Gas control blocks
Miscellaneous
Honeywell Solenoid valves

Honeywell 2-Way and 3-Way Valves
Honeywell Ignition Controls
Honeywell servo motor
Satronic
- DKO
- DKW
- Miscellaneous
- MMG
- MMI
- TF
- TFI
- TMG
- View All
Gas control blocks
Miscellaneous
Honeywell Solenoid valves

Spare parts According to Manufacturer

Spare parts According to Manufacturer

Baltur
Bentone
Brotje
- Burner motor
- Cable
- Control unit
- Electrodes
- Flame tube
- Flange
- Gas control
- Miscellaneous
- Pump
- View All
Buderus
Danfoss
De Dietrich
Elco
Electro-Oil
Elster Kromschroder
EUROSIT
- Miscellaneous
- View All
Ideal Standard
Intercal
Korting
Lamborghini
Man
Miscellaneous
Olymp
Rapido
Riello
SIT
Viessmann
Weishaupt
Wolf

Baltur
Bentone
Brotje
- Burner motor
- Cable
- Control unit
- Electrodes
- Flame tube
- Flange
- Gas control
- Miscellaneous
- Pump
- View All
Buderus
Danfoss
De Dietrich
Elco
Electro-Oil
Elster Kromschroder
EUROSIT
- Miscellaneous
- View All
Ideal Standard
Intercal
Korting
Lamborghini
Man
Miscellaneous
Olymp
Rapido
Riello
SIT
Viessmann
Weishaupt
Wolf

Spare parts According to Manufacturer

Spare parts According to Manufacturer

Baltur
Bentone
Brotje
- Burner motor
- Cable
- Control unit
- Electrodes
- Flame tube
- Flange
- Gas control
- Miscellaneous
- Pump
- View All
Buderus
Danfoss
De Dietrich
Elco
Electro-Oil
Elster Kromschroder
EUROSIT
- Miscellaneous
- View All
Ideal Standard
Intercal
Korting
Lamborghini
Man
Miscellaneous
Olymp
Rapido
Riello
SIT
Viessmann
Weishaupt
Wolf

Baltur
Bentone
Brotje
- Burner motor
- Cable
- Control unit
- Electrodes
- Flame tube
- Flange
- Gas control
- Miscellaneous
- Pump
- View All
Buderus
Danfoss
De Dietrich
Elco
Electro-Oil
Elster Kromschroder
EUROSIT
- Miscellaneous
- View All
Ideal Standard
Intercal
Korting
Lamborghini
Man
Miscellaneous
Olymp
Rapido
Riello
SIT
Viessmann
Weishaupt
Wolf

Spare parts for Oil and Gas

Spare parts for Oil and Gas

Brahma
COFI
Danfoss
FIDA
May & Christe
Thermodeflectors
Ignition Transformers
- Siemens
- View All
Oil Burner Pumps
- Danfoss Pumps
- SUNTEC Pumps
  - AE Series
  - AJ Series
  - AL Series
  - ALE Series
  - AN Series
  - AP Series
  - AR Series
  - AS Series
  - AT2 Series
  - AT3 Series
  - D Series
  - E Series
  - J Series
  - Miscellaneous
  - T Series
  - TA Series
  - View All
- View All
Oil Filters
- Filters
- View All
Oil Meter and accessories
Servo motor
Solenoid valves
- DANFOSS
- Rapa
- View All

Brahma
COFI
Danfoss
FIDA
May & Christe
Thermodeflectors
Ignition Transformers
- Siemens
- View All
Oil Burner Pumps
- Danfoss Pumps
- SUNTEC Pumps
  - AE Series
  - AJ Series
  - AL Series
  - ALE Series
  - AN Series
  - AP Series
  - AR Series
  - AS Series
  - AT2 Series
  - AT3 Series
  - D Series
  - E Series
  - J Series
  - Miscellaneous
  - T Series
  - TA Series
  - View All
- View All
Oil Filters
- Filters
- View All
Oil Meter and accessories
Servo motor
Solenoid valves
- DANFOSS
- Rapa
- View All

Spare parts for Oil and Gas

Spare parts for Oil and Gas

Brahma
COFI
Danfoss
FIDA
May & Christe
Thermodeflectors
Ignition Transformers
- Siemens
- View All
Oil Burner Pumps
- Danfoss Pumps
- SUNTEC Pumps
  - AE Series
  - AJ Series
  - AL Series
  - ALE Series
  - AN Series
  - AP Series
  - AR Series
  - AS Series
  - AT2 Series
  - AT3 Series
  - D Series
  - E Series
  - J Series
  - Miscellaneous
  - T Series
  - TA Series
  - View All
- View All
Oil Filters
- Filters
- View All
Oil Meter and accessories
Servo motor
Solenoid valves
- DANFOSS
- Rapa
- View All

Brahma
COFI
Danfoss
FIDA
May & Christe
Thermodeflectors
Ignition Transformers
- Siemens
- View All
Oil Burner Pumps
- Danfoss Pumps
- SUNTEC Pumps
  - AE Series
  - AJ Series
  - AL Series
  - ALE Series
  - AN Series
  - AP Series
  - AR Series
  - AS Series
  - AT2 Series
  - AT3 Series
  - D Series
  - E Series
  - J Series
  - Miscellaneous
  - T Series
  - TA Series
  - View All
- View All
Oil Filters
- Filters
- View All
Oil Meter and accessories
Servo motor
Solenoid valves
- DANFOSS
- Rapa
- View All

Sanitary products

Sanitary products

Flexible Connecting Hoses
- Flexible Tap Connectors
  - 1/2x1/2 Inox F-F Flexible Tap Connector
  - View All
- View All
Geberit
GROHE
Ideal Standard
Modea OPTIMA

Flexible Connecting Hoses
- Flexible Tap Connectors
  - 1/2x1/2 Inox F-F Flexible Tap Connector
  - View All
- View All
Geberit
GROHE
Ideal Standard
Modea OPTIMA

Sanitary products

Sanitary products

Flexible Connecting Hoses
- Flexible Tap Connectors
  - 1/2x1/2 Inox F-F Flexible Tap Connector
  - View All
- View All
Geberit
GROHE
Ideal Standard
Modea OPTIMA

Flexible Connecting Hoses
- Flexible Tap Connectors
  - 1/2x1/2 Inox F-F Flexible Tap Connector
  - View All
- View All
Geberit
GROHE
Ideal Standard
Modea OPTIMA

Measuring instruments

Measuring instruments

Brigon
Testo

Brigon
Testo

Measuring instruments

Measuring instruments

Brigon
Testo

Brigon
Testo

Navigation

About us
Frequently Asked Questions
Delivery Policy, including delivery on split shipment of goods
Returns & Refund Policy
Terms and Conditions
Privacy Policy

Solutions & Services

Contact Us

Blog

Brands

SIEMENS

BELIMO

Viessmann

ELCO

RIELLO

GROHE

Buderus

SUNTEC

DE DIETRICH

Wolf

View all Brands

HVAC deals
information
Solutions & Services
Contact Us
Blog
+44 2036952386

Home
SIEMENS
Electric Actuators
SUA

SUA

Sort By:

Quick view Compare Add to Cart

SIEMENS

Siemens SUA21/3

MSRP:

Was:

Now: €18.58

Quick view Compare Add to Cart

Compare Selected

Join our newsletter

Email Address

Navigate

HVAC deals
information
Solutions & Services
Contact Us
Blog
Sign in or Register
Sitemap

Categories

Clearance and Special Offers
Siemens Connected Home
BELIMO
SIEMENS
Siemens CPS Fire Safety
SIEMENS KNX
HONEYWELL
Spare parts According to Manufacturer
Spare parts for Oil and Gas
Sanitary products
Measuring instruments

Popular Brands

SIEMENS
BELIMO
Viessmann
ELCO
RIELLO
GROHE
Buderus
SUNTEC
DE DIETRICH
Wolf
View All

Connect With Us

+44 2036952386

Kestakon Limited Company Number 9527760 VAT Num.: GB211738235 EORI Num.: GB211738235000 71-75 Shelton Street, Covent Garden London WC2H 9JQ

+44 2036952386

© 2025 HVAC parts & spares UK by Kestakon Ltd.