Welling & Crossley 9000w Inverter Petrol Generator E-Start WC-P11250I
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2-Year Manufacturer Warranty
General ETA ~ Aug 29–Sep 2
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Estimated arrival: Aug 29 – Sep 2
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- Brooklyn, 3012
- Stapylton, 4207
- Mount Louisa, 4814
- Malaga, 6090
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The Owner's Insights on the Welling & Crossley WC-P11250I 11.25kVA Open Frame Inverter Generator
This is the unusual one: a genuine inverter at 8,500W rated, in an open frame, weighing only 73kg. Most machines at this output are twice the weight and half as quiet, which you notice every time you load one.
Under 70 dBA at 7 metres, from a generator making 8,500 watts, is the headline. That's quieter than plenty of 5kVA open frame units, and it's what lets you run it near houses or on a job where people have to talk.
Four ways to start it, including a wireless remote and a two-wire auto start, and a 25 litre tank good for 17 hours at quarter load. Your 32A IP66 outlet means you draw real power through a plug.
Why You'll Love the Welling & Crossley WC-P11250I 11.25kVA Open Frame Inverter Generator
- 8,500W rated, 9,000W max. Heavy tools, a mobile setup or your whole house.
- Under 70 dBA at 7 metres. Quiet for this much output, by a long way.
- Inverter output. Clean power for your laptops and control gear.
- Only 73kg. Half the weight of comparable open frame units.
- 25 litre tank, 17 hours at 25%. Run it overnight and forget about it.
- Four ways to start it. Recoil, electric, two-wire auto and wireless remote.
- IP66 32A and IP44 15A outlets. Sealed against weather and dust.
- 2-year limited warranty. Backed by Welling & Crossley.
Why You Should Consider a Welling & Crossley Inverter Generator
Welling & Crossley have supplied power equipment to the Australian trade for decades, and the WC-P11250I is their large open frame inverter. It carries a 2-year limited warranty.
Welling & Crossley WC-P11250I Specifications
| Model | WC-P11250I |
| Product code | 811986 |
| Model rating | 11.25kVA |
| Max AC output | 9,000W |
| Rated AC output | 8,500W |
| Type | Open frame inverter |
| Voltage and frequency | 240V AC, 50Hz |
| Power factor | 0.8 |
| Outlets | 1 x IP44 15A, 1 x IP66 32A, 1 x USB-A (18W), 1 x USB-C (15W) |
| Engine | WC-460B, single cylinder 4-stroke OHV, air-cooled |
| Displacement | 459cc |
| Engine speed | 3,000 rpm |
| Ignition | DCDI |
| Starting | Recoil, electronic, two-wire and wireless remote |
| Low oil protection | Fitted |
| Fuel type | 91 octane unleaded petrol |
| Fuel tank capacity | 25L |
| Fuel consumption | 1.45L/hr at quarter load |
| Operating time at 25% load | 17 hours |
| Noise level at 7m | Under 70 dBA |
| Oil | 1.2L SAE 10W-30 |
| Spark plug | NGK BPR6ES |
| Dimensions | 715 x 560 x 680mm |
| Dry weight | 73kg |
| Warranty | 2 years limited |
Is under 70 dBA at 8,500 watts believable?
This is the spec that makes the machine worth your time. Conventional open frame generators at this output run 80 to 90 dBA, and every 10 dB is roughly twice as loud to your ear. Under 70 puts it in inverter territory, which means you can run it near houses, on a job where your crew has to talk, or at a site with noise limits. If you've been told your generator is too loud, this is the class of machine that fixes it.
Why the inverter matters at this size
An inverter converts the output to DC and rebuilds a clean 240V sine wave from scratch. At 8,500W that's unusual, and it means your chargers, control gear, laptops and anything with a circuit board are safe on it, which they aren't on a conventional alternator. It's also why the engine can throttle back when your load is light, which is where your quiet and your fuel economy come from.
Seventy-three kilos is half what you'd expect
A conventional open frame generator making 8,500 watts typically weighs 130 to 160kg, which puts it on a trailer or a pad. This one is 73kg, so you and a mate can lift it into your ute. If yours has to move between jobs rather than live on a site, that difference changes how you work with it entirely.
Four ways to start it, including auto
Recoil is your last resort. Electric is the button on the panel. Wireless remote saves you walking out in the rain. The one worth knowing about is the two-wire auto start: a contact closure fires it up, so your inverter, battery system or transfer switch runs it without you being there. That turns a site generator into backup for your house or your shed.
17 hours at quarter load, and what that means working
It burns 1.45 litres an hour at quarter load, so 25 litres gives 17 hours. That gives you overnight backup with plenty spare, or a light-draw day without a thought. Working it near 8,500W is different, because fuel use tracks the load, so plan on refuelling once on a heavy day. Compared with the WC-P13750RCD, this one gives up some output and the built-in RCD but is far quieter and half the weight.
What's Included
- Welling & Crossley WC-P11250I generator
- IP44 15A and IP66 32A outlets
- USB-A and USB-C charging ports
- Wireless remote start
- User manual
- 2-year manufacturer warranty
What's Not Included
- Petrol
- Extension leads and a 32A lead
- The wiring between your system and the two-wire auto start
- A changeover switch and the electrician to fit it
- A cover, if it is going to live outside
The remote and both weatherproof outlets come as standard. The 32A outlet needs a matching lead, and if you're backing up a building you need a licensed electrician and a changeover switch: never backfeed through a wall socket.
Not Sure Which Inverter Generator Suits You?
The WC-P11250I suits you if you need serious output but you also need it quiet, and you'd rather lift 73kg than wrestle a 160kg machine. It's the wrong pick if you need built-in RCD protection for a site, where the WC-P13750RCD has it, or if noise genuinely doesn't matter, where a conventional open frame unit gives you the same output for less. It carries a 2-year limited warranty. Try the Generator Finder, or call the store on 03 7056 6732.
Welling & Crossley WC-P11250I Manual
Download the Welling & Crossley WC-P11250I 11.25kVA Open Frame Inverter Generator user manual for full technical details and setup instructions.
