Wind Turbine FAQs

- Start with two questions: how much wind your site actually gets, and how much room you have.
- Vertical turbines (the X-300, H1000 and H2000) start turning at 2 to 2.5 m/s and take wind from any direction, so they keep working where the wind swirls and shifts — around buildings, trees and rooflines. They run from 300 W up to 2000 W.
- Horizontal turbines (M-400, M-600, M-800, and the L1, L2 and G series) want cleaner, steadier wind and a clear run at it. In clean, steady wind a horizontal of the same rating is usually the better harvester, and they scale further — 400 W up to 5000 W.
- Match the turbine to your battery bank, not to the biggest number. 12 V suits a camper, 4WD or tinnie; 24 V a van, cabin or boat; 48 V a shed or remote block.
1. The largest models run at mains voltage, and the L2-3000, G-3000 and G-5000 are ground-mount only — they need a 10–15 m mast and are not rooftop units.
2. Rated power is measured at 10–14 m/s, depending on the model. What you get at your place depends on your wind, your mast height and the season — not on a number on our website.
1. No. Wind turbines generate "wild" 3-phase AC power that changes voltage constantly with the wind speed.
2. Connecting it directly to a battery or a standard solar inverter will destroy your equipment.
- You must wire the turbine into a dedicated wind charge controller (pure-wind or wind-solar hybrid) with a dump-load resistor.
- The controller converts the power to stable DC to charge your batteries safely.
Match the turbine and its controller to the voltage of your existing battery bank:
- 12 V: compact mobile setups — caravans, 4WDs and camper trailers.
- 24 V: medium setups — off-grid sheds, cabins and motorhomes.
- 48 V: most of this range, and the sensible choice for a full off-grid system. Higher voltage means less current in the cable, so less loss over a long run and lighter cable.
- When your battery bank is fully charged it stops accepting power.
1. If a storm hits at night with the batteries full, a turbine with nowhere to send its power will free-spin out of control and can physically fly apart.
- The controller prevents that by diverting the excess into the dump load resistor, which burns it off safely as heat and acts as an electronic brake to slow the turbine down.
- Yes, you need one.
- Usually quieter, but not silent — no turbine is.
- Why a Horizontal is Louder: its blade tips travel several times faster than the wind, and blade noise climbs steeply with tip speed. The whoosh rises and falls as each blade comes round — a rhythmic swish that carries through wind noise more than a steady hiss does.
- Why a Vertical is Usually Quieter: its blades turn more slowly, so there is less of that whoosh.
1. What we won't Tell you: that it's silent. Every turbine gets louder as the wind picks up. The wind often covers much of it in a strong blow, but a close neighbour can still hear one in light to moderate wind.
2. The manufacturer publishes no noise figure for the turbines themselves (the "65 dB or less" on some Specs tabs is the controller's), so we don't quote one.
- On a building, use vibration isolators — a turbine bolted to a structure carries its sound into the rooms — and check your council's rules on noise, height and placement before you order a mast.
- It will turn, but turning is not charging. The blades start turning at 2 to 2.5 m/s (about 7 to 9 km/h) — a light breeze.
- Charging starts at the cut-in speed: 3 m/s (about 11 km/h) on every model except the X-300, which starts and charges from 2 m/s. Output then climbs steeply with wind speed.
1. The rated figure is measured much higher — 10 to 14 m/s depending on the model, a 36 to 50 km/h wind, not a normal afternoon. Each product page's spec table gives that model's own numbers.
- A gentle breeze keeps the turbine ticking over; it takes real wind to push real power into your batteries. Every horizontal model has its measured power curve published on its product page — work from that, not from the number in the product name.
- No — small turbines are built to spin fast. The smaller the rotor, the faster it has to turn to keep its blade tips up with the wind: the M-400's 1.35 m rotor runs at about 800 rpm, the M-600 and M-800 at about 500, the big G-series at 300.
- In the manufacturer's words, the high rpm is a design necessity, not a defect. A slower generator would need a bigger stator and more magnets and copper — heavier and dearer.
- They start turning at 2 to 2.5 m/s and make power right across the wind range — just less when the wind is light. What you get depends on your site and how high you mount it.
- Yes — connect the turbine to a battery bank first, through a dedicated charge controller.
1. Never straight to an inverter. Connecting a wind turbine directly to a standard inverter will damage the equipment or cause the system to fail.
The Correct Order:
- 1. Wind Turbine — generates wild, fluctuating 3-phase AC as the wind changes.
- 2. Hybrid or Wind Charge Controller — converts it to steady DC, and protects the turbine from over-speeding with an electronic brake.
- 3. Battery Bank (12 V, 24 V or 48 V) — absorbs the gusts and provides a steady source of energy.
- 4. Off-Grid Inverter — connects to the battery, converting stored DC into AC for your appliances.
Why you Cannot Skip the Battery:
1. Unstable Voltage: wind changes second by second. Without a battery to smooth it out, a direct-connected inverter would constantly cut out.
2. Turbine Damage: when a battery is full or disconnected, the turbine loses its load. Without that resistance the blades can spin out of control in high wind and destroy the unit. The controller uses the battery connection to dump excess power and slow it down.
1. This turbine generates 3-phase AC power and cannot be connected directly to a battery, a solar controller or a home inverter.
- It must run through a dedicated wind charge controller (pure-wind or wind-solar hybrid) with a dump-load resistor. The dump load stops the turbine over-speeding and destroying itself in high winds once your batteries are full.
- Installation and commissioning must be carried out by a suitably qualified and licensed electrician.
- Cable, breakers, isolators and all protective devices are selected to suit your site and are the electrician's call, not ours.
It is almost always one of three installation issues. Check them in order.
Quick Checks — Tick as You Go
- Is the Meter Set to AC Volts (V~)?
- Does it Spin Freely Once Disconnected from the Controller?
- Is the Cable from the Mast Heavy Enough for the Run?
1. The Multimeter is Set to DC — The Most Common Mistake.
1. Measuring the three turbine wires with the meter set to DC volts gives a false reading near zero.
- Wind turbines generate 3-phase AC directly from the stator. Switch the meter to AC volts (V~).
2. The Turbine is Stalling Because of a Short.
1. The blades turn heavily and slowly, or lock up: if any of the three AC output wires touch each other, or the controller's braking diodes have short-circuited, it acts as a magnetic brake — the turbine can never spin fast enough to build voltage.
- Disconnect the turbine from the controller. If it frees up and spins much faster, the problem is a short in the wiring or a faulty controller.
3. Voltage Drop from Thin Cable.
1. Thin solar or automotive cable over 20 metres or more loses the power as heat before it reaches the controller.
- Use heavy cable between the mast and the controller on long runs — minimum 8 AWG, ideally 6 AWG. Final sizing is your electrician's call.
- The number in the name is a peak rating, not a promise.
- A turbine's rated output is measured at a specific wind speed — 10 to 14 m/s depending on the model, which is about 36 to 50 km/h — and most sites see far less than that most of the time.
- Your display shows what the wind is delivering right now, so it will sit well below the rated figure and move second by second as the wind changes. That is physics, not a fault.
- As an example, the L2-2500 is rated 2,500 W at 11 m/s. On a decent steady coastal breeze of 7 m/s the manufacturer's own curve gives about 813 W. That is why we publish the full power curve on every horizontal turbine's product page.
- Where these machines earn their keep is time: they keep charging through the night and through the weather that shuts solar down.
1. If the display shows 0 W while the blades are spinning, that is a different problem — see the 0 W question.
- Not necessarily — this is one of the most common questions we get, and it is rarely a faulty unit.
- It is 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 Guide for the complete walkthrough, or the Set-Up Guide — or contact us and we will help you sort it out.
- Wire your bus bar and breakers before and after the controller, then power up in the right order. Getting the sequence right prevents almost all wiring issues, including the common "spinning but 0 W" problem.
- 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.

6-50mm² Cable Lug Crimping Tool Terminal Crimper

$83.95 AUD

Options: Crimper

6-50mm Cable Lug Crimping Tool Terminal Crimper Electrical Supplies

Delivering Outside Australia or New Zealand? Delivery is free. Import duty, customs charges and any tax on arrival are set by your country and are payable by you — we can’t collect them for you.

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A Bad Crimp doesn't Fail. It Just Gets Hot.

Most cable joins that cause trouble were made with the wrong thing. A pair of pliers, the corner of a vice, a hammer and a punch. The lug goes on, the cable stays put when you tug it, and it looks finished. What you can't see is that only part of the copper is actually in contact with the barrel. That join carries the same current as the cable either side of it through a fraction of the metal, so it develops resistance, and resistance under load means heat. Six months on you've got a warm terminal, a discoloured lug and a connection that is slowly damaging itself every time the winch or the inverter pulls hard.

This is a hand crimper with shaped dies that squeeze the lug barrel down onto the strands from every side at once, so the copper cold-welds into something close to a solid bar. It covers cable from 6mm² up to 50mm² — and that is mm², the cross-sectional area of the conductor, not the diameter of the cable in millimetres. Carbon steel jaws, long straight handles for leverage, no hydraulics, no power, nothing to charge. It lives in the toolbox and works in a wheel arch or under a bonnet.

Be realistic about what it is. It's a hand tool, not a workshop hydraulic press, and it stops at 50mm² — if you're making up 70mm² or 95mm² inverter leads you need a bigger tool. Some buyers also report the dies can shift slightly under load, leaving a crimp that isn't a perfect hexagon; it still grips, and a second squeeze tidies it up, but it isn't a bench press. If you want factory-finish crimps on 95mm² all day, this isn't the tool.

What it Solves

Dual-Battery Ute Builds: making up short 25mm² and 35mm² leads to length instead of buying pre-made cables that never quite fit.
Farm & Site Repairs: a pump shed or genset lead pulls a terminal off and you need it back on properly today, not next week.
Boat & Van Inverters: heavy DC runs where a warm terminal behind a panel is the last thing you'll ever notice.
Battery Bank Rebuilds: replacing every interconnect on a bank at once, where a dozen matched crimps beat a dozen hammered guesses.
Remote & Emergency Work: no compressor, no 240V, no hydraulic pump — just the tool, the lug and both hands.

Key Features

6–50mm² Cable Range: covers the sizes most 12V, 24V and 48V builds actually use, from 6mm² accessory runs to 50mm² battery leads.
Compression from All Sides: the die closes around the whole barrel rather than flattening one face, which is the difference between a crimp and a squash.
Carbon Steel Construction: the jaws take the load rather than spreading, which is where cheap alloy crimpers give up.
Long Straight Handles: leverage does the work, so 50mm² is a two-handed push rather than a fight.
Match the Die to the Cable: use the die stamped for the conductor size, not the lug's outside diameter — an oversized die leaves the strands loose inside the barrel.
Pairs with Copper Lugs: sized for standard SC-series ring terminals such as our copper SC lugs, which run SC4 through to SC50.
Re-Crimp if it's Untidy: a second squeeze on the same barrel is normal practice and tightens up a crimp that came out uneven.
No Power Source: nothing to charge, nothing to pump, nothing to fail in the middle of a job.
Three Purchase Options: crimper on its own, crimper with a cable cutter, or the kit — see the Q & A on what we can and can't confirm about the kit.

Where This Fits

Wiring an off-grid system means making up your own cable ends. This is one of the tools for that job — here's the rest of the picture:

Off-grid wiring layout — vertical axis wind turbine and solar panel into a hybrid MPPT controller, with dump load, main battery circuit breaker, DC bus bar, 12V 24V 48V battery bank and inverter

Wind Turbines: vertical and horizontal turbines from 300 W to 5 kW (rated) — and they can 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.

Cable sizing depends on your run length, voltage and current, and a bad crimp is the connection that heats up later — check the sizing against your own run or ask your sparky before you make up anything you can't undo.

Q & A

Does 6–50mm Mean the Cable is 50mm Thick?

No, and this is worth getting right before you order. It's 6–50mm² — the cross-sectional area of the copper conductor, which is how cable is sized in Australia. A 50mm² battery cable is roughly 8mm across the copper and thicker again over the insulation. If you've been shopping by the outside diameter of the cable, measure the conductor instead, or go by what's printed on the sheath.

What's Actually in the Crimper Kit, and What does the Cable Cutter Version Add?

We can't confirm it. The supplier hasn't given us a contents list for the kit, and the only difference we can state with certainty is the price: crimper on its own, crimper with a cutter, or the kit. Buyer reviews on this page mention lugs and heat shrink turning up with the kit, but reviews aren't a packing list and we're not going to sell you a box on the strength of them.

Will it do 70mm² or 95mm² Inverter Cable?

No. It stops at 50mm². Above that you're into hydraulic crimpers, and forcing an oversized conductor into a 50mm² die gives you a join that looks crimped and isn't.

Do I Have to Match the Die to the Cable Size?

Yes, and go by the conductor, not the lug body. Too large a die and the strands sit loose in the barrel; too small and you shear strands off. If the cable and the lug are both marked 25mm², use the 25mm² die.

Is it Good Enough for a Permanent Installation?

For extra-low-voltage DC work — 12V, 24V and 48V battery, solar and turbine wiring — a properly matched hand crimp is standard practice. Anything on the 240V side, or anything that has to be signed off, is licensed sparky territory in Australia regardless of which tool made the crimp.

How Good is the Finish on the Crimp?

Honest answer: tidy, not perfect. Several buyers report the dies moving slightly on 25mm² and above, so the hexagon comes out a bit uneven with one fold on the outside. It holds the cable, and a second crimp cleans it up. If you need a textbook hex every time, buy hydraulic.

Specs

Specification	Detail
Cable Range	6–50mm² Conductor Cross-Sectional Area
Tool Type	Manual Hand Crimper, No Power or Hydraulics Required
Jaw Material	Carbon Steel
Handle	Straight, Non-Slip Grip
Die Sizes Supplied	Not Specified by Supplier
Crimp Profile	Not Specified by Supplier
Suits Terminals	Copper SC-Series Ring Lugs, SC4 to SC50
Options Available	Crimper / with Cable Cutter / Crimper Kit
Cable Cutter Capacity	Not Specified by Supplier
Kit Contents	Not Specified by Supplier
Tool Length	Not Specified by Supplier
Weight	Not Specified by Supplier
Certification	Not Specified by Supplier
Delivery	Free Standard Delivery, no minimum spend. 5 to 10 working days from order date; allow 1–2 days for fulfilment

Watch Me

Everything we know about this one is written down: the Specs for the supplier's published figures, and the Q & A for the questions buyers ask before they order.

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Wind Turbine FAQs

- Start with two questions: how much wind your site actually gets, and how much room you have.
- Vertical turbines (the X-300, H1000 and H2000) start turning at 2 to 2.5 m/s and take wind from any direction, so they keep working where the wind swirls and shifts — around buildings, trees and rooflines. They run from 300 W up to 2000 W.
- Horizontal turbines (M-400, M-600, M-800, and the L1, L2 and G series) want cleaner, steadier wind and a clear run at it. In clean, steady wind a horizontal of the same rating is usually the better harvester, and they scale further — 400 W up to 5000 W.
- Match the turbine to your battery bank, not to the biggest number. 12 V suits a camper, 4WD or tinnie; 24 V a van, cabin or boat; 48 V a shed or remote block.
1. The largest models run at mains voltage, and the L2-3000, G-3000 and G-5000 are ground-mount only — they need a 10–15 m mast and are not rooftop units.
2. Rated power is measured at 10–14 m/s, depending on the model. What you get at your place depends on your wind, your mast height and the season — not on a number on our website.
1. No. Wind turbines generate "wild" 3-phase AC power that changes voltage constantly with the wind speed.
2. Connecting it directly to a battery or a standard solar inverter will destroy your equipment.
- You must wire the turbine into a dedicated wind charge controller (pure-wind or wind-solar hybrid) with a dump-load resistor.
- The controller converts the power to stable DC to charge your batteries safely.
Match the turbine and its controller to the voltage of your existing battery bank:
- 12 V: compact mobile setups — caravans, 4WDs and camper trailers.
- 24 V: medium setups — off-grid sheds, cabins and motorhomes.
- 48 V: most of this range, and the sensible choice for a full off-grid system. Higher voltage means less current in the cable, so less loss over a long run and lighter cable.
- When your battery bank is fully charged it stops accepting power.
1. If a storm hits at night with the batteries full, a turbine with nowhere to send its power will free-spin out of control and can physically fly apart.
- The controller prevents that by diverting the excess into the dump load resistor, which burns it off safely as heat and acts as an electronic brake to slow the turbine down.
- Yes, you need one.
- Usually quieter, but not silent — no turbine is.
- Why a Horizontal is Louder: its blade tips travel several times faster than the wind, and blade noise climbs steeply with tip speed. The whoosh rises and falls as each blade comes round — a rhythmic swish that carries through wind noise more than a steady hiss does.
- Why a Vertical is Usually Quieter: its blades turn more slowly, so there is less of that whoosh.
1. What we won't Tell you: that it's silent. Every turbine gets louder as the wind picks up. The wind often covers much of it in a strong blow, but a close neighbour can still hear one in light to moderate wind.
2. The manufacturer publishes no noise figure for the turbines themselves (the "65 dB or less" on some Specs tabs is the controller's), so we don't quote one.
- On a building, use vibration isolators — a turbine bolted to a structure carries its sound into the rooms — and check your council's rules on noise, height and placement before you order a mast.
- It will turn, but turning is not charging. The blades start turning at 2 to 2.5 m/s (about 7 to 9 km/h) — a light breeze.
- Charging starts at the cut-in speed: 3 m/s (about 11 km/h) on every model except the X-300, which starts and charges from 2 m/s. Output then climbs steeply with wind speed.
1. The rated figure is measured much higher — 10 to 14 m/s depending on the model, a 36 to 50 km/h wind, not a normal afternoon. Each product page's spec table gives that model's own numbers.
- A gentle breeze keeps the turbine ticking over; it takes real wind to push real power into your batteries. Every horizontal model has its measured power curve published on its product page — work from that, not from the number in the product name.
- No — small turbines are built to spin fast. The smaller the rotor, the faster it has to turn to keep its blade tips up with the wind: the M-400's 1.35 m rotor runs at about 800 rpm, the M-600 and M-800 at about 500, the big G-series at 300.
- In the manufacturer's words, the high rpm is a design necessity, not a defect. A slower generator would need a bigger stator and more magnets and copper — heavier and dearer.
- They start turning at 2 to 2.5 m/s and make power right across the wind range — just less when the wind is light. What you get depends on your site and how high you mount it.
- Yes — connect the turbine to a battery bank first, through a dedicated charge controller.
1. Never straight to an inverter. Connecting a wind turbine directly to a standard inverter will damage the equipment or cause the system to fail.
The Correct Order:
- 1. Wind Turbine — generates wild, fluctuating 3-phase AC as the wind changes.
- 2. Hybrid or Wind Charge Controller — converts it to steady DC, and protects the turbine from over-speeding with an electronic brake.
- 3. Battery Bank (12 V, 24 V or 48 V) — absorbs the gusts and provides a steady source of energy.
- 4. Off-Grid Inverter — connects to the battery, converting stored DC into AC for your appliances.
Why you Cannot Skip the Battery:
1. Unstable Voltage: wind changes second by second. Without a battery to smooth it out, a direct-connected inverter would constantly cut out.
2. Turbine Damage: when a battery is full or disconnected, the turbine loses its load. Without that resistance the blades can spin out of control in high wind and destroy the unit. The controller uses the battery connection to dump excess power and slow it down.
1. This turbine generates 3-phase AC power and cannot be connected directly to a battery, a solar controller or a home inverter.
- It must run through a dedicated wind charge controller (pure-wind or wind-solar hybrid) with a dump-load resistor. The dump load stops the turbine over-speeding and destroying itself in high winds once your batteries are full.
- Installation and commissioning must be carried out by a suitably qualified and licensed electrician.
- Cable, breakers, isolators and all protective devices are selected to suit your site and are the electrician's call, not ours.
It is almost always one of three installation issues. Check them in order.
Quick Checks — Tick as You Go
- Is the Meter Set to AC Volts (V~)?
- Does it Spin Freely Once Disconnected from the Controller?
- Is the Cable from the Mast Heavy Enough for the Run?
1. The Multimeter is Set to DC — The Most Common Mistake.
1. Measuring the three turbine wires with the meter set to DC volts gives a false reading near zero.
- Wind turbines generate 3-phase AC directly from the stator. Switch the meter to AC volts (V~).
2. The Turbine is Stalling Because of a Short.
1. The blades turn heavily and slowly, or lock up: if any of the three AC output wires touch each other, or the controller's braking diodes have short-circuited, it acts as a magnetic brake — the turbine can never spin fast enough to build voltage.
- Disconnect the turbine from the controller. If it frees up and spins much faster, the problem is a short in the wiring or a faulty controller.
3. Voltage Drop from Thin Cable.
1. Thin solar or automotive cable over 20 metres or more loses the power as heat before it reaches the controller.
- Use heavy cable between the mast and the controller on long runs — minimum 8 AWG, ideally 6 AWG. Final sizing is your electrician's call.
- The number in the name is a peak rating, not a promise.
- A turbine's rated output is measured at a specific wind speed — 10 to 14 m/s depending on the model, which is about 36 to 50 km/h — and most sites see far less than that most of the time.
- Your display shows what the wind is delivering right now, so it will sit well below the rated figure and move second by second as the wind changes. That is physics, not a fault.
- As an example, the L2-2500 is rated 2,500 W at 11 m/s. On a decent steady coastal breeze of 7 m/s the manufacturer's own curve gives about 813 W. That is why we publish the full power curve on every horizontal turbine's product page.
- Where these machines earn their keep is time: they keep charging through the night and through the weather that shuts solar down.
1. If the display shows 0 W while the blades are spinning, that is a different problem — see the 0 W question.
- Not necessarily — this is one of the most common questions we get, and it is rarely a faulty unit.
- It is 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 Guide for the complete walkthrough, or the Set-Up Guide — or contact us and we will help you sort it out.
- Wire your bus bar and breakers before and after the controller, then power up in the right order. Getting the sequence right prevents almost all wiring issues, including the common "spinning but 0 W" problem.
- 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.