G.A.S Digital EC Fan Cables — Control Cables for Vector EC and Hyper Fan Digital Extraction Systems
Best for: Growers connecting digital fans to speed controllers without guessing which cable goes where
Our thoughts
These are the connective tissue between your digital fan and your controller. Sounds simple, but active vs. non-active cables catch people out. G.A.S makes the full range, which means you can actually match the right cable to your setup instead of bodging it. One we recommend a lot when growers are building digital extraction systems.
G.A.S Digital EC Fan Cables are low-voltage control cables that connect your digital fans directly to your fan speed controller. These aren't power cables—they transmit the digital signal that tells your fan how fast to spin. They come in several configurations depending on whether you're running one fan, two fans, or need to extend the run between your controller and extraction point.
The catch that trips most growers up: not all EC fan cables are the same. Active cables carry power from the fan to the controller, meaning you need fewer plugs in the grow room. Non-active cables just move the signal, which means your controller needs its own mains power supply. Pick the wrong type and your system either won't power up or you'll be running extra cables you don't need.
How it compares
G.A.S cables are the OEM standard for Vector EC and Hyper Fan systems in the UK.
- Active cables work with almost any controller setup, including those powered through the fan itself (like the EC1)
- Non-active cables cost less but require your controller to have its own mains connection
- Y-splitter options let you run two fans from one controller socket without daisy-chaining
- Proper industrial connectors—not generic PC cables that won't survive humid grow room conditions
Competitors like Can-Fan and Rhino make decent controllers, but G.A.S has the cable ecosystem down to a fine art. You get options instead of compromises.
Usage guidance
Single fan setup
Connect your Vector EC or Hyper Fan to your controller using a male-to-male cable. If your controller is powered via the fan (EC1, for example), use an active cable. If your controller plugs into the wall, non-active does the job.
Two-fan setup (intake and exhaust)
Use a Y-splitter cable to connect both fans to one controller socket. Run one size smaller on intake to create negative pressure. Simple and clean—no extra sockets needed.
Extended runs
5 metres is the standard. If you need to go longer, extension cables and balancer setups exist. Worth asking about your exact room layout before you buy—too long and you risk signal loss.
Active vs. non-active—the decision
Check your controller first. EC5, EC1, and EC Fan Speed Controller? Active cable required. Enviro Controller or AC-EC? Either works, but active is more flexible. When in doubt, active covers you.
Technical specifications
-
Standard length: 5 metres (male-to-male)
-
Connector type: Male connectors on both ends (fans and controllers have female sockets)
-
Active cables: Three pins connected, includes power line from fan to controller
-
Non-active cables: Data transmission only, controller requires separate mains power
-
Cable variants available: Male-to-male, Y-splitter (one controller to two fans), extension cables (female-to-female)
-
Compatible fans: Vector EC (all models), Hyper Fan V2 (with supplied RJ11 or 3-pin converter)
-
Compatible controllers: EC1, EC5, EC Fan Speed Controller, Enviro Controller, AC-EC, plus most G.A.S digital fan control systems
-
Signal standard: Digital EC control (Modbus RTU) or analogue 0-10V depending on controller
Who this is for
- Growers building a digital extraction system for the first time and needing to know which cable actually does what
- Anyone upgrading from manual fan speed controls to digital climate control
- Multi-fan setups where you need to run intake and exhaust as a balanced pair
- Growers who want to reduce mains socket clutter using active cables powered through the fan
- Experienced growers adding more fans to an existing controller without running extra power cables across the room
Our take
Digital fan control sounds more complicated than it is, but cable selection matters. G.A.S has built a proper range here—active, non-active, Y-splitters, extensions—which means you can actually build the system your room needs instead of making do with what fits.
The active vs. non-active thing is worth getting right first time. Five minutes checking your controller spec now saves you swapping cables later. Worth picking up the right cable while you're setting up your extraction. Makes the difference between a system that just works and one that keeps you guessing.
