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Controllers

Home / Controllers & Accessories / Controllers / Page 3
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Merlin 1250X - Gas and Ventilation Interlock System - S&S Northern
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Merlin 1250X – Gas and Ventilation Interlock System – S&S Northern

£425.00 ex. VAT
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ESU 3 - Electronic speed controller - Helios
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ESU 3 – Electronic speed controller – Helios

£81.37 ex. VAT
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TEID7.5A - FlaktWoods - Transformer Single Phase Fan Speed Controller
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TEID7.5A – FlaktWoods – Transformer Single Phase Fan Speed Controller

£302.50 ex. VAT
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TEID5A - FlaktWoods - Transformer Single Phase Fan Speed Controller
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TEID5A – FlaktWoods – Transformer Single Phase Fan Speed Controller

£198.00 ex. VAT
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TEID2.2A - FlaktWoods - Transformer Single Phase Fan Speed Controller
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TEID2.2A – FlaktWoods – Transformer Single Phase Fan Speed Controller

£170.50 ex. VAT
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SC5030 - 3 Amp Electronic Fan Speed Controller - Vent Axia
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SC5030 – 3 Amp Electronic Fan Speed Controller – Vent Axia

£108.00 ex. VAT
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149-EL101 AC Electronic Controller - Elta
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149-EL101 AC Electronic Controller – Elta

£181.00 ex. VAT
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149-EL31 AC Electronic Controller - Elta
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149-EL31 AC Electronic Controller – Elta

£91.00 ex. VAT
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149-TC310 (10AMP) Three Phase - Transformer Controller - Elta
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149-TC310 (10AMP) Three Phase – Transformer Controller – Elta

£575.00 ex. VAT
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RRB-100 - Electromechanical Single Phase Speed Control - Soler & Palau
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RRB-100 – Electromechanical Single Phase Speed Control – Soler & Palau

£97.65 ex. VAT
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VFD-M 10A IP54 (1-PH) - Variable Frequency Inverter - Soler & Palau
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VFD-M 10A IP54 (1-PH) – Variable Frequency Inverter – Soler & Palau

£558.60 ex. VAT
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ZNI - Helios - Overrun Timer
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ZNI – Helios – Overrun Timer

£64.73 ex. VAT
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HY 3 SI - Helios - Ventilation Hygrostat
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HY 3 SI – Helios – Ventilation Hygrostat

£77.89 ex. VAT
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TSD 3.0 - Helios - Transformer Controller
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TSD 3.0 – Helios – Transformer Controller

£346.64 ex. VAT
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TSD 1.5 - Helios - Transformer Controller
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TSD 1.5 – Helios – Transformer Controller

£287.40 ex. VAT
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RTRE 3 - Manual Five-Step Transformer With Motor Protection 3 Amp- 1 Phase - Systemair
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RTRE 3 – Manual Five-Step Transformer With Motor Protection 3 Amp- 1 Phase – Systemair

£191.58 ex. VAT
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TEM035 - TRANSFORMER CONTROLLER T/S ETALINE EDR MIXED FLOW FANS - RUCK
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TEM035 – TRANSFORMER CONTROLLER T/S ETALINE EDR MIXED FLOW FANS – RUCK

£273.52 ex. VAT
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Air PD - Air Pressure Differential - Switch 20 - 300pa - S&S Northern
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Air PD – Air Pressure Differential – Switch 20 – 300pa – S&S Northern

£33.00 ex. VAT
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Merlin CO2-X Monitor - Carbon Dioxide & Temperature Monitor - S&S Northern
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Merlin CO2-X Monitor – Carbon Dioxide & Temperature Monitor – S&S Northern

£193.00 ex. VAT
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Merlin 1000VW+ - Gas Pressure Proving, Electric & Water Isolation with Ventilation Interlocking - S&S Northern
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Merlin 1000VW+ – Gas Pressure Proving, Electric & Water Isolation with Ventilation Interlocking – S&S Northern

£645.00 ex. VAT
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MTP 30 - 143289 - 3 - step potentiometer 10 kO - Ruck
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MTP 30 – 143289 – 3 – step potentiometer 10 kO – Ruck

£78.00 ex. VAT
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MTP 20 - 128146 - Potentiometer 10 kO - Ruck
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MTP 20 – 128146 – Potentiometer 10 kO – Ruck

£55.12 ex. VAT
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ESU 1 - Electronic speed controller - Helios
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ESU 1 – Electronic speed controller – Helios

£78.28 ex. VAT
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ACSWEC - Auto change over panel - Helios
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ACSWEC – Auto change over panel – Helios

£256.47 ex. VAT
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TEID3.5A - FlaktWoods - Transformer Single Phase Fan Speed Controller
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TEID3.5A – FlaktWoods – Transformer Single Phase Fan Speed Controller

£181.50 ex. VAT
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149-ODE3-24400-3KA4B - Eltadrive Variable Speed drive IP66 - Elta
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149-ODE3-24400-3KA4B – Eltadrive Variable Speed drive IP66 – Elta

£1,191.00 ex. VAT
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149-DCV-H1 - Room Humidistat - Elta
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149-DCV-H1 – Room Humidistat – Elta

£77.00 ex. VAT
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RMB 10 - 5 Step & Off Auto Transformer 10A Max. 230V - Soler & Palau
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RMB 10 – 5 Step & Off Auto Transformer 10A Max. 230V – Soler & Palau

£404.25 ex. VAT
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VFD-T 9A IP54 (3-PH) - Variable Frequency Inverter - Soler & Palau
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VFD-T 9A IP54 (3-PH) – Variable Frequency Inverter – Soler & Palau

£783.88 ex. VAT
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VFD-T 5A IP54 (3-PH) - Variable Frequency Inverter - Soler & Palau
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VFD-T 5A IP54 (3-PH) – Variable Frequency Inverter – Soler & Palau

£633.94 ex. VAT
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REV 3N - Transformer Speed Controller - Soler & Palau
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REV 3N – Transformer Speed Controller – Soler & Palau

£448.35 ex. VAT
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AUTO CHANGEOVER PANEL - Vent Axia - ACOB1A
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AUTO CHANGEOVER PANEL – Vent Axia – ACOB1A

£313.44 ex. VAT
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TSW 3.0 - Helios - Transformer Controller
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TSW 3.0 – Helios – Transformer Controller

£161.26 ex. VAT
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MWS 7.5  - Transformer Controller With Motor Protection Unit - Helios
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MWS 7.5 – Transformer Controller With Motor Protection Unit – Helios

£428.91 ex. VAT
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MWS 1.5 - Transformer Controller With Motor Protection Unit  - Helios
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MWS 1.5 – Transformer Controller With Motor Protection Unit – Helios

£239.14 ex. VAT
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ESA 3i - Industrial Speed Controller - Helios
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ESA 3i – Industrial Speed Controller – Helios

£102.02 ex. VAT
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Ventilation Experts is the online shop powered by L&B Ventilation Supplies Ltd. We are an independent distributor and stockist to the Heating, Ventilation & Air conditioning (HVAC) industry. 

Popular Products
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  • Utility Room Fans
  • Window & Wall fans
  • Plate Axial Fans
  • Cased Axial Fans
  • Bifurcated Axial Flow Fans
  • Box Fans
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Norwich Branch:

4 Albertine Close,

Sweet Briar Industrial Estate,

Norwich NR3 2FA

 

Chelmsford Branch:

Unit 3 Grafton Place,

Dukes Park Ind Est,

Chelmsford, CM2 6TG

 

Monday to Friday 6:00am – 5:00pm

 

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© Ventilation Experts 2026. Ventilation Experts is a trading name of L&B Ventilation Supplies Ltd. Online prices are for a limited time only, and subject to change see our full Terms & Conditions. Registered in England and Wales No. 10679544. Unit 4 Albertine Close, Sweet Briar Industrial Estate, Norwich, Norfolk, NR3 2FA. Website by JMJ Digital
  • Home
  • Domestic Fans
    • Bathroom / Kitchen Extractor Fans
    • Centrifugal Inline Fans
      • Heat Recovery & Wholehouse Units
    • Fan Inserts
    • Mixed Flow Inline Fans
    • Utility Room Fans
    • Window & Wall fans
  • Commercial Fans
    • Box Fans
    • Bifurcated Axial Flow Fans
    • Cased Axial Fans
    • Gigabox Centrifugal Fans
    • Heater Batteries
    • Medium Pressure Fans
    • Plate Axial Fans
    • Roof Mounted Fans
    • Rectangular Duct Fans
    • Twin Fans
  • Controllers & Accessories
    • Ancillary Kits
    • Anti Vibrations Mounts
    • Backdraft Shutters & Dampers
    • Controllers
    • Fan Guards
    • Filter Boxes & Media
  • Controllers & Accessories Cont.
    • Flanges
    • Flexible Connectors
    • Louvre Shutters
    • Mounting Feet
    • Other Accessories
    • Roof Fan Accessories
    • Silencers
    • Valves, Grilles & Louvres
  • Clearance Fans & Fan Accessories
  • Contact Us
  • Support
    • Useful Info
    • Credit Account Application
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