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.
DC Solar Wind Mini Circuit Breaker Overload Protection 6A to 125A
Tracking
Tracking
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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.
Rated IP20. Fine in a box, not on a pole.
A DC fault doesn't put itself out. Mains AC crosses zero a hundred times a second and that snuffs the arc for you, which is why a household breaker can get away with a modest arc chute. A battery bank never crosses zero. Put an AC-only breaker on the DC side of an off-grid system and a hard fault can hold an arc across the contacts until the breaker welds shut and stops being a breaker at all.
This is a DC-rated mini circuit breaker for that job. Twelve current ratings from 6A to 125A, one to four poles, and a rated voltage of 1000V DC, so the same part suits a 12V van fit-out, a 24V shed and a 48V house bank. It goes on the DC side of your system — controller to battery, battery to bus bar, solar array to controller — and gives you a handle you can pull before you put a spanner anywhere near a live terminal.
Where it doesn't suit you: it's IP20, so it needs to live inside an enclosure, not out on the tower. The supplier rates it from -10°C to +40°C, which is under what a black steel box in full sun on the Nullarbor will reach in February. And it is not the part for the three-phase wild AC between a turbine and its controller — that run wants an AC-rated turbine brake or isolator instead.
What It Solves
- Working on a live bank: you can shut down and isolate one leg of the system before you touch a terminal, instead of pulling a lug off under load.
- Turbine and solar sharing a bank: a breaker on each input means you can drop the solar array out to fault-find the turbine without shutting the whole shed down.
- Van and camper builds: a small rating on the 12V side of a fridge or inverter circuit, so an overload opens a breaker you can reset rather than damaging the cable.
- Remote site and mine telemetry: a repeater or pump cabinet running off panels needs each circuit broken separately so a tech can work on one without dropping the site.
- Farm sheds and pump paddocks: long DC runs out to a bore pump want overload protection at the source end, in a board you can label and lock.
Key Features
- Twelve current ratings: 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A, 80A, 100A and 125A, so you can size to the circuit rather than round up and lose the protection.
- One to four poles: 1P, 2P, 3P and 4P, so you can break the negative as well as the positive where your design calls for it.
- 1000V DC rated: a long way above any 12V, 24V or 48V bank, and high enough to suit a solar string on the array side.
- C tripping curve: tolerates the inrush of a motor or an inverter starting, without sitting through a genuine overload.
- 10kA breaking at the top end: the 80A to 125A ratings are given a 10kA breaking capacity, which is the figure that matters on a big lithium bank with short, fat cables.
- Backup fuse rating: the supplier states it can sit behind a 100A gL fuse where prospective fault current is above 10kA.
- Tunnel terminals: the conductor is clamped in a closed tunnel rather than pinched under a screw head, which holds a stranded cable better over heat cycles.
- Self-extinguishing housing: thermoplastic body, impact resistant and self-extinguishing, per the supplier's own data.
- Selectivity grade 3: supplier-stated, for coordinating with an upstream device so the nearest breaker opens first.
Where This Fits
This is one part of the gear that sits between a wind turbine and your battery bank. Here's the whole picture:
- Wind turbines: vertical axis turbines from 1kW to 20kW — quiet enough to put near the house, and they charge overnight when your solar can't.
- Hybrid MPPT controllers: you can't wire a turbine straight to a battery. The controller rectifies the output, manages the charge, and brakes the turbine when the bank is full.
- The rest of the electrical range: bus bars, breakers, isolators, cable, lugs and Anderson plugs.
Every input and output wants a breaker or isolator on it, so you can safely shut down and isolate the turbine before you touch anything. That protects you, and it stops a surge damaging your new turbine or the rest of your power system. Cable sizing depends on your run length, voltage and current — if you're building 12V or 24V, check the sizing against your own run or ask your sparky.
Q & A
What size breaker do I need for my turbine?
Work from the DC side, not the turbine's badge. Take the turbine's rated output in watts and divide it by your bank voltage to get the continuous current, then allow headroom above that. A 1kW turbine into a 48V bank is about 21A continuous, so a 25A or 32A breaker; the same 1kW into 24V is about 42A, and into 12V it's about 83A. Halve the voltage and you double the current — that's why low-voltage banks eat bigger breakers and fatter cable. Then check two things: the breaker must not be rated above your cable's current rating, and it must not be rated above what your controller's DC output terminals are rated for. Whichever of those three is smallest sets the size.
Can I put it on the wires between the turbine and the controller?
No. That run is three-phase wild AC at a frequency and voltage that both change with wind speed, and this breaker is rated for DC. Use an AC-rated turbine brake switch or isolator there. This one belongs downstream of the controller, on the DC side.
Will it work on a 12V, 24V or 48V bank?
Yes. The rated voltage is 1000V DC, so every common off-grid bank voltage is well under it. Voltage is not the limit here — current is, and so is your cable.
Do I want 1P, 2P, 3P or 4P?
One pole breaks the positive only. Two poles break positive and negative together, which is what most people want on a battery circuit so nothing stays live when the handle is down. Three and four pole versions exist mainly for multi-string solar and for series-connecting poles to lift the DC voltage rating. The supplier does not state whether the 1000V DC figure is per pole or only with poles wired in series, and it does not state whether the breaker is polarity sensitive. If your design depends on either of those, ask your sparky before you order.
Can I mount it outside on the tower or on the shed wall?
Not on its own. It's IP20 — that rating is about fingers and solid objects, not water. It needs to go in an enclosure. The supplier's operating range is -10°C to +40°C, so pick a shaded spot with airflow; a sealed dark box in western sun will run hotter than that and a thermal breaker will nuisance-trip when it's warm.
What's the breaking capacity?
4.5kA (4,500A) on the 6A to 63A ratings, and 10kA (10,000A) on the 80A to 125A ratings. That step up is not marketing — it's the reason the bigger units exist. Breaking capacity is the fault current the breaker can interrupt and still be a breaker afterwards; go past it and the contacts can weld instead of opening. A large lithium bank with short, fat cables can push well past 4,500A into a dead short, so work out your bank's prospective fault current before you pick a rating rather than sizing on the continuous load alone. If that figure is anywhere near 4.5kA, use an 80A-and-up unit or put a fuse in front — the supplier states a 100A gL backup fuse where prospective fault current is above 10kA. If you're not sure what your bank can deliver, your cell or battery data sheet will give a short-circuit figure, or ask your sparky.
Specs
| Specification | Detail |
| Type | DC miniature circuit breaker, overload and short circuit protection |
| Rated current (options sold) | 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A, 80A, 100A, 125A |
| Pole configurations (options sold) | 1P, 2P, 3P, 4P |
| Rated voltage | 1000V DC |
| Breaking capacity, 6A to 63A | 4,500A (4.5kA) |
| Breaking capacity, 80A to 125A | 10,000A (10kA) |
| Tripping curve | C |
| Maximum backup fuse | 100A gL, where prospective fault current is above 10kA |
| Selectivity grade | 3 |
| Operating temperature | -10°C to +40°C |
| Ingress protection | IP20 — enclosure required |
| Terminals | Closed tunnel terminals |
| Terminal cable capacity (mm²) | Not specified by supplier |
| Housing | Thermoplastic, impact resistant, self-extinguishing |
| Mounting | Not specified by supplier |
| Dimensions and module width (mm) | Not specified by supplier |
| Weight (kg) | Not specified by supplier |
| Polarity sensitivity | Not specified by supplier |
| Electrical and mechanical life (operations) | Not specified by supplier |
| Standards claimed by supplier | IEC 60898 and GB 10963 — supplier's claim, no certificate sighted |
| Australian approval (RCM, AS/NZS) | Not specified by supplier |
Watch Me
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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.
