Wind Turbine FAQs
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Summary Checklist for Your Choice
Choose the SR or ST-1200W if you want portability, low noise, and minimal investment for camping or caravans.
Choose the ST-2000, ST-3000, or ST-5000 if you have a stationary house/cabin and want to supplement solar panels at night.
Choose the ST-10kW or 20kW if you have heavy agricultural power needs, acreage, and a budget for proper mast engineering.
The vertical axis wind turbines listed on the BushLine Outdoor Equipment catalog are categorized by physical design shapes, which dictate their ideal applications.
-
No.Wind turbines generate "wild" 3-phase AC power that changes voltage constantly with the wind speed. Connecting it directly to a battery or a standard solar inverter will instantly destroy your equipment. Youmustwire the turbine into a dedicatedWind/Solar Hybrid MPPT Controller with an integrated Dump Load Resistor. The controller converts the power to stable DC to charge your batteries safely.
-
You must match the turbine and its hybrid controller to the exact voltage of your existing battery bank:
- 12V: Best for compact mobile setups like caravans, 4WDs, and camper trailers.
- 24V: Great for medium-sized setups like off-grid sheds, cabins, and motorhomes.
- 48V: The gold standard for full off-grid home systems. Higher voltage means less energy loss through your wires and allows you to use thinner, safer cables.
-
When your battery bank becomes 100% fully charged, it stops accepting power. If a heavy wind storm hits at night when your batteries are full, a turbine with nowhere to send its power will "free-spin" out of control and physically fly apart. A hybrid controller fixes this by automatically diverting that excess power into the dump load resistor, which burns it off safely as heat and acts as an electronic brake to slow the turbine down.
-
No,that is the main benefit of the vertical design. Traditional horizontal "propeller" turbines create a high-pitched, annoying "chopping" noise. Our ST Tulip and Flower series utilise advanced omnidirectional maglev-style bearings, making them virtually silent and completely vibration-free, all you will hear is the wind. They are perfect for suburban blocks, tight caravan parks, and areas close to neighbours.
-
Yes.These turbines have an incredibly low startup wind speed of just 2.0 m/s, meaning the blades will begin rotating in a very gentle breeze. However, please note that physical power generation only starts accumulating once wind speeds consistently clear 4 to 5 m/s.
-
You should connect the wind turbine to a battery bank first, via a dedicated charge controller, rather than directly to an inverter. Connecting a wind turbine directly to a standard inverter will damage the equipment or cause the system to fail.
🔋 The Correct Wiring SequenceTo safely capture and use the power, your setup must follow this exact order:
- Wind Turbine: Generates wild, fluctuating 3-phase AC power as wind speeds change.
- Hybrid/Wind Charge Controller: Converts the unstable AC power into steady DC power. It also protects the turbine from over-speeding by applying an electronic brake during high winds.
- Battery Bank (12V/24V/48V): Acts as a buffer to store the energy. It absorbs sudden power spikes from wind gusts and provides a steady source of energy.
- Off-Grid Inverter: Connects to the battery, converting the stored DC battery power into standard AC power for your household appliances.
⚠️ Why You Cannot Skip the Battery
- Unstable Voltage: Wind speeds change second by second. Without a battery to absorb and smooth out these massive fluctuations, a direct-connect inverter would constantly turn off and error out.
- Turbine Destruction: When a battery is full or disconnected, a wind turbine loses its "load" (resistance). Without that resistance, the blades can spin out of control in high winds and physically destroy the unit. The charge controller uses the battery connection to safely dump excess power and slow the turbine down.
-
Wiring & Installation Requirement:This wind turbine generates 3-phase AC power andcannotbe connected directly to a battery, solar controller, or home inverter. To operate safely, it must run through a dedicatedWind/Solar Hybrid MPPT Controller with an integrated Dump Load Resistor. The dump load prevents the turbine from over-speeding and destroying itself in high winds once your batteries are fully charged.
-
It is almost always caused by one of three common installation errors. Check these variables in order: Checking the Multi-Meter Setting (Most Common Mistake)
- The Issue: The customer is likely measuring the three wires coming out of the turbine using a DC voltage setting on their multimeter.
- The Reality: Wind turbines generate 3-Phase AC power directly from the stator.
- The Fix: Instruct them to switch their multi-meter to AC Voltage (V~). Testing the wires under a DC setting will provide a false, completely inaccurate reading near zero.
2. The Turbine is Stalling Due to Incorrect Wiring
- The Issue: The turbine blades are spinning heavily but turning very slowly or locking up because of an electrical short.
- The Reality: If any of the three AC output wires are accidentally touching each other, or if the controller's internal braking diodes have short-circuited, it creates a magnetic brake. This bogs down the turbine, physically stopping it from spinning fast enough to build voltage.
- The Fix: Have them completely disconnect the turbine from the controller. If the turbine suddenly unbogs and spins much faster when disconnected, the problem is a short circuit in the wiring or a faulty controller.
3. Voltage Drop Caused by Thin Cables
- The Issue: The customer ran thin wiring over a long distance from the tower down to the battery shed.
- The Reality: If they used standard thin solar cables or thin automotive wire over a long distance (e.g., 20+ metres), the natural resistance of the copper wire will choke out the electricity. The energy is lost as heat inside the wire before it ever reaches the meter.
- The Fix: Ensure they are using heavy-duty, minimum 8 AWG or 6 AWG thick cable lines between the mast and the controller house
-
Wind turbines are rated byCumulative Daily Capacity, not instantaneous hourly peak output. Because wind speeds fluctuate constantly second-by-second, a 1200W turbine is designed to yield up to 1200W of total poweraccumulated over a 24-hour periodin optimal conditions (averaging roughly 50W per hour). This constant, steady trickle is exactly what makes vertical turbines perfect for maintaining batteries overnight when solar panels are offline.
-
Not necessarily — this is one of the most common questions we get, and it's rarely a faulty unit. It's usually a quick settings check, or (on a first-time install) how the wiring and start-up sequence were done. See our full Wind Turbine 0W Troubleshooting & Installation Guide for the complete walkthrough, or contact us and we'll help you sort it out.
-
Short Answer Wire your bus bar and breakers before and after the controller, then power up in the right order — battery first, then solar, then wind. Getting this sequence right prevents almost all wiring issues, including the common "spinning but 0W" problem. Answer (rich text field, with the link placeholder): Correct installation comes down to isolation and the right sequence: Fit a breaker before the controller (turbine/solar side) and after it (battery side), landing on a DC bus bar Keep the turbine-to-controller cable run to 2–10 metres to limit voltage drop Power up in this order: battery breaker first, then solar, then wind turbine last See our full How to Install & Start Up guide for the complete step-by-step walkthrough and wiring diagram.
PV Solar Photovoltaic Disconnect Switch Isolator
Tracking
Tracking
Keep an eye on your gear.
Simply enter the tracking number sent to your email to see exactly where your package is and when it is estimated to arrive.
Note: It may take 24-48 hours for tracking information to update after your order has been dispatched.
Delivery and Shipping
Delivery and Shipping
At Bushline, we believe getting your gear should be easy. That is why we offer Free Standard Shipping to every customer in Australia and New Zealand. No minimum spend, no surcharges.
How Long It Takes
We quote these times from the day you place your order, not from the day we dispatch it. That is the number that actually matters to you, and quoting it any other way just moves the goalposts.
- Most gear: 10 to 14 days from the day you order. Allow up to 3 weeks.
- New Zealand: Same as above. NZ orders run to the same timeframe as Australian ones.
- Large wind turbines: Allow up to 5 weeks. These are heavy, oversized units and they travel on slower freight than everything else.
- Regional & remote areas: Please allow extra time on top of the above.
Dispatch & Tracking
- Pick & Pack: We aim to dispatch within one business day (Monday to Friday). Most orders go out within two.
- Weekends: Orders placed on weekends or public holidays are processed the next business day.
- Tracking: You will get a Shipping Confirmation email with your tracking number as soon as your order ships.
If Your Order Is Running Late
Ring 0400 333 898 or email Support@BushLine.com.au and we will chase the tracking ourselves rather than sending you off to do it. You will get a straight answer on where it is, including if it has not moved.
Need A Large Turbine Sooner?
Expedited freight is available on the big units at extra cost, which brings delivery down to roughly a fortnight. It is quoted per order because it depends on the size of the unit and where it is going. Get in touch before you order and we will price it for you.
Solar does not stop just because you want it to.
A panel in daylight is live. There is no off switch on it, and you cannot safely break a DC circuit with an ordinary AC switch — DC arcs and keeps arcing, where AC self-extinguishes a hundred times a second. That is the whole reason a dedicated DC isolator exists, and why an underrated switch in a solar string is a fire waiting for a sunny day.
This is a proper DC isolator: 32A at 1200V, four pole, in an IP66 housing with copper conductors. Turn the knob and the string is broken, so you can work on a controller, an inverter or a junction box without the array still feeding it.
It is a switch, not a fuse. An isolator disconnects on purpose, when you turn it. It does not trip on overcurrent, so it does not replace fusing or breakers — it sits alongside them.
What It Solves
- Work on the controller without the array live: break the string at the isolator first, and what you are holding is dead instead of carrying a few hundred volts.
- Shut down fast in an emergency: one knob, and the solar side is isolated. A visible, obvious switch is what you want when something is smoking.
- Stop using the wrong switch: an AC-rated switch in a DC string will arc across the contacts and weld or burn. This is rated for DC and certified to IEC/EN 60947-3 for it.
- Leave it outside and forget it: IP66 and rated −40°C to +85°C, so it copes with a WA summer on a north wall or a winter on a boat.
- Isolate the RV or the boat at the panel: wall mounted, so it goes where you can reach it rather than buried behind the batteries.
Key Features
- Rated 1200V DC: enough headroom for a long string, where open-circuit voltage climbs in the cold.
- 32A rated current: suits typical residential and small commercial PV strings.
- Four pole: breaks both conductors with two poles in series on each, which is how DC switching capacity is achieved.
- IP66 housing: dust tight and rated against powerful water jets, in a polycarbonate enclosure.
- Copper conductors: not plated steel, which is where cheap isolators lose their rating.
- 20,000 mechanical cycles: and 6,000 electrical operations, so it outlasts the array.
- Certified to IEC/EN 60947-3: the correct standard for a DC switch disconnector, with TUV, CE, CB, UKCA, CCC, RoHS and ISO9001 stated by the supplier.
- −40°C to +85°C: alpine cold through to a tin roof in February.
Where This Fits
The isolator goes on the solar side, between the array and whatever it feeds. Here is the whole picture:
- Hybrid MPPT controllers: the isolator lets you disconnect the solar input before you touch a controller. Check the controller's maximum PV input voltage before you size a string.
- Breakers, bus bars, cable and lugs: an isolator switches, it does not protect. You still need fusing and breakers on the circuit.
- Wind turbines: if solar alone is not covering you, a turbine charges overnight and through weather when panels cannot.
Every input and output wants a breaker or isolator on it, so you can safely shut down and isolate before you touch anything. Solar work in particular needs a licensed electrician in Australia — and keep the invoice, because our warranty on electrical items asks for proof of professional installation.
Q & A
Can I use a normal AC isolator instead?
No, and this is the important one. DC does not cross zero volts the way AC does, so an arc drawn across opening contacts keeps burning instead of self-extinguishing. An AC-rated switch in a DC string can weld shut or catch fire. Use a switch rated for DC and certified to IEC/EN 60947-3, which this is.
Why four poles for two wires?
Because DC switching capacity comes from putting poles in series. Two poles per conductor stretch and break the arc over a longer gap. It is not four separate circuits — it is two circuits done properly.
Does it protect against overcurrent?
No. An isolator is a switch you operate deliberately. It does not trip on a fault. You still need fuses or breakers sized to the string.
Will 1200V be enough for my array?
Almost certainly for a domestic or off-grid string. Remember that panel open-circuit voltage rises as temperature falls, so size against the coldest morning you get, not the average. Add your panels' Voc, apply the temperature coefficient, and stay well inside the rating.
Can I mount it outside?
Yes. IP66 is dust tight and rated against powerful water jets, and it is rated −40°C to +85°C. Mount it where you can reach it in a hurry — the point of an isolator is being able to get to it.
What are the 1PV and 2PV options?
The number of PV strings the unit is configured for. Choose 1PV for a single string, 2PV where two strings need isolating.
Can I install it myself?
Solar installation work in Australia requires a licensed electrician. Beyond the legal position, this is a part whose job is to make things safe — fitted wrong it gives false confidence. Get a sparky, and keep the invoice for warranty.
Specs
| Product type | DC switch disconnector (PV isolator) |
| Brand | CNLonQcom |
| Rated current | 32A |
| Rated voltage | 1200V DC |
| Poles | 4P |
| Standard | IEC/EN 60947-3, GB/T 14048.3 |
| Ingress protection | IP66 |
| Housing material | Polycarbonate (PC) |
| Conductor material | Copper |
| Mechanical life | 20,000 cycles |
| Electrical life | 6,000 cycles |
| Operating temperature | −40°C to +85°C |
| Installation | Wall mounting |
| Options | Isolator switch, 1PV, 2PV |
| Certification | TUV, CE, CB, UKCA, AZ, CCC, ISO9001, RoHS — stated by supplier |
| Overcurrent protection | None — this is a switch, not a fuse or breaker |
| Dimensions | Not specified by supplier |
| Weight | Not specified by supplier |
Watch Me
No video on this one. If you are wiring an off-grid system, these two guides cover the sequence and the hazards:
- How to install and start up a wind turbine — the correct order of connection, and the two shock hazards to know first.
- Wind turbine spinning but showing 0W — nearly always wiring or setup rather than faulty gear.
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Wind Turbine FAQs
-
Summary Checklist for Your Choice
Choose the SR or ST-1200W if you want portability, low noise, and minimal investment for camping or caravans.
Choose the ST-2000, ST-3000, or ST-5000 if you have a stationary house/cabin and want to supplement solar panels at night.
Choose the ST-10kW or 20kW if you have heavy agricultural power needs, acreage, and a budget for proper mast engineering.
The vertical axis wind turbines listed on the BushLine Outdoor Equipment catalog are categorized by physical design shapes, which dictate their ideal applications.
-
No.Wind turbines generate "wild" 3-phase AC power that changes voltage constantly with the wind speed. Connecting it directly to a battery or a standard solar inverter will instantly destroy your equipment. Youmustwire the turbine into a dedicatedWind/Solar Hybrid MPPT Controller with an integrated Dump Load Resistor. The controller converts the power to stable DC to charge your batteries safely.
-
You must match the turbine and its hybrid controller to the exact voltage of your existing battery bank:
- 12V: Best for compact mobile setups like caravans, 4WDs, and camper trailers.
- 24V: Great for medium-sized setups like off-grid sheds, cabins, and motorhomes.
- 48V: The gold standard for full off-grid home systems. Higher voltage means less energy loss through your wires and allows you to use thinner, safer cables.
-
When your battery bank becomes 100% fully charged, it stops accepting power. If a heavy wind storm hits at night when your batteries are full, a turbine with nowhere to send its power will "free-spin" out of control and physically fly apart. A hybrid controller fixes this by automatically diverting that excess power into the dump load resistor, which burns it off safely as heat and acts as an electronic brake to slow the turbine down.
-
No,that is the main benefit of the vertical design. Traditional horizontal "propeller" turbines create a high-pitched, annoying "chopping" noise. Our ST Tulip and Flower series utilise advanced omnidirectional maglev-style bearings, making them virtually silent and completely vibration-free, all you will hear is the wind. They are perfect for suburban blocks, tight caravan parks, and areas close to neighbours.
-
Yes.These turbines have an incredibly low startup wind speed of just 2.0 m/s, meaning the blades will begin rotating in a very gentle breeze. However, please note that physical power generation only starts accumulating once wind speeds consistently clear 4 to 5 m/s.
-
You should connect the wind turbine to a battery bank first, via a dedicated charge controller, rather than directly to an inverter. Connecting a wind turbine directly to a standard inverter will damage the equipment or cause the system to fail.
🔋 The Correct Wiring SequenceTo safely capture and use the power, your setup must follow this exact order:
- Wind Turbine: Generates wild, fluctuating 3-phase AC power as wind speeds change.
- Hybrid/Wind Charge Controller: Converts the unstable AC power into steady DC power. It also protects the turbine from over-speeding by applying an electronic brake during high winds.
- Battery Bank (12V/24V/48V): Acts as a buffer to store the energy. It absorbs sudden power spikes from wind gusts and provides a steady source of energy.
- Off-Grid Inverter: Connects to the battery, converting the stored DC battery power into standard AC power for your household appliances.
⚠️ Why You Cannot Skip the Battery
- Unstable Voltage: Wind speeds change second by second. Without a battery to absorb and smooth out these massive fluctuations, a direct-connect inverter would constantly turn off and error out.
- Turbine Destruction: When a battery is full or disconnected, a wind turbine loses its "load" (resistance). Without that resistance, the blades can spin out of control in high winds and physically destroy the unit. The charge controller uses the battery connection to safely dump excess power and slow the turbine down.
-
Wiring & Installation Requirement:This wind turbine generates 3-phase AC power andcannotbe connected directly to a battery, solar controller, or home inverter. To operate safely, it must run through a dedicatedWind/Solar Hybrid MPPT Controller with an integrated Dump Load Resistor. The dump load prevents the turbine from over-speeding and destroying itself in high winds once your batteries are fully charged.
-
It is almost always caused by one of three common installation errors. Check these variables in order: Checking the Multi-Meter Setting (Most Common Mistake)
- The Issue: The customer is likely measuring the three wires coming out of the turbine using a DC voltage setting on their multimeter.
- The Reality: Wind turbines generate 3-Phase AC power directly from the stator.
- The Fix: Instruct them to switch their multi-meter to AC Voltage (V~). Testing the wires under a DC setting will provide a false, completely inaccurate reading near zero.
2. The Turbine is Stalling Due to Incorrect Wiring
- The Issue: The turbine blades are spinning heavily but turning very slowly or locking up because of an electrical short.
- The Reality: If any of the three AC output wires are accidentally touching each other, or if the controller's internal braking diodes have short-circuited, it creates a magnetic brake. This bogs down the turbine, physically stopping it from spinning fast enough to build voltage.
- The Fix: Have them completely disconnect the turbine from the controller. If the turbine suddenly unbogs and spins much faster when disconnected, the problem is a short circuit in the wiring or a faulty controller.
3. Voltage Drop Caused by Thin Cables
- The Issue: The customer ran thin wiring over a long distance from the tower down to the battery shed.
- The Reality: If they used standard thin solar cables or thin automotive wire over a long distance (e.g., 20+ metres), the natural resistance of the copper wire will choke out the electricity. The energy is lost as heat inside the wire before it ever reaches the meter.
- The Fix: Ensure they are using heavy-duty, minimum 8 AWG or 6 AWG thick cable lines between the mast and the controller house
-
Wind turbines are rated byCumulative Daily Capacity, not instantaneous hourly peak output. Because wind speeds fluctuate constantly second-by-second, a 1200W turbine is designed to yield up to 1200W of total poweraccumulated over a 24-hour periodin optimal conditions (averaging roughly 50W per hour). This constant, steady trickle is exactly what makes vertical turbines perfect for maintaining batteries overnight when solar panels are offline.
-
Not necessarily — this is one of the most common questions we get, and it's rarely a faulty unit. It's usually a quick settings check, or (on a first-time install) how the wiring and start-up sequence were done. See our full Wind Turbine 0W Troubleshooting & Installation Guide for the complete walkthrough, or contact us and we'll help you sort it out.
-
Short Answer Wire your bus bar and breakers before and after the controller, then power up in the right order — battery first, then solar, then wind. Getting this sequence right prevents almost all wiring issues, including the common "spinning but 0W" problem. Answer (rich text field, with the link placeholder): Correct installation comes down to isolation and the right sequence: Fit a breaker before the controller (turbine/solar side) and after it (battery side), landing on a DC bus bar Keep the turbine-to-controller cable run to 2–10 metres to limit voltage drop Power up in this order: battery breaker first, then solar, then wind turbine last See our full How to Install & Start Up guide for the complete step-by-step walkthrough and wiring diagram.
