Description
NEFF N30 Built-Under Double Electric Oven
A stainless steel built-under double oven from NEFF's N30 range, pairing a 47-litre CircoTherm main oven with a 34-litre second oven for cooking separate dishes at once.
The J1GCC0AN0B gives you two ovens in a single 71.7cm housing that slots under the counter, so you keep your worktop and still gain a second cavity. It suits busy households that regularly cook a main and a side at different temperatures, and anyone replacing an existing built-under double oven in a standard 60cm cabinet.
The main oven carries NEFF's CircoTherm hot-air system, which circulates heat so effectively that you can bake on up to three levels at once without flavours crossing over. Above it, the 34-litre second oven brings its own full surface grill and conventional heat, giving you an independent space for puddings, sides or grilling while the roast stays put below.
Ideal For
Meat in the 47-litre main oven, roast potatoes and stuffing in the 34-litre top cavity. Each runs at its own temperature, so nothing waits its turn or dries out while the rest catches up.
At 71.7cm high and 59.4cm wide, it is made for the space beneath a standard worktop, keeping both ovens within easy reach without giving up a tall housing unit elsewhere.
CircoTherm circulates hot air evenly across up to three levels, so trays of buns, biscuits or traybakes cook together without swapping shelves halfway through.
Key Features
The larger cavity offers five heating methods, including CircoTherm, Circo-Roasting and a full surface grill, with a 50 to 275 degree Celsius temperature range for everything from meringues to pizza.
The top cavity runs top and bottom heat plus full surface and small area grills, giving you a genuinely useful second oven rather than a token warming space.
NEFF's hot-air system distributes heat evenly around the main oven, letting you cook on up to three levels simultaneously with minimal flavour transfer between dishes.
The main oven achieves an A energy efficiency rating, with the second cavity rated B, so everyday single-oven cooking runs on the more efficient of the two.
A simple red LED display and mechanical controls keep operation straightforward, with a clear readout and a control panel lock to prevent accidental changes.
Two combination grids and a universal pan come in the box, so you can load both cavities from day one without buying extra accessories.
Two ovens without a tall housing
A double oven usually means sacrificing a full-height cabinet. The built-under format takes a different approach: both cavities sit in a 71.7cm unit beneath the worktop, in the same footprint a single built-under oven would occupy. You keep your kitchen layout, your drawers and your wall units, and still gain the flexibility of cooking two dishes at completely different temperatures. For semi-open kitchens where a wall of appliances would dominate, it is a tidy solution.
CircoTherm makes the main oven work harder
CircoTherm is NEFF's hot-air system, and it is the reason the main cavity can handle up to three levels at once. Air circulates evenly around the oven, so a tray on the bottom shelf cooks at much the same rate as one at the top, and strong flavours stay with their own dish. Add Circo-Roasting for joints, a full surface grill for browning and CircoTherm Gentle for more delicate cooking, and five heating methods cover most of what a home cook asks of an oven.
What installation actually involves
This is a built-under appliance, designed to slide into the space beneath a standard worktop: 71.7cm high, 59.4cm wide and 55cm deep, weighing 45.9kg. It has no plug. With a 5300-watt connection rating and 25-amp fuse protection, it must be hard-wired by a qualified electrician, which is standard for double ovens at this power level. Factor that into your fitting plans, and check the cavity dimensions against the installation manual before ordering cabinetry. Once in, the drop-down main door and glass inner door make routine access and cleaning uncomplicated.
How It Compares
| Kitchen Need | NEFF Technology | Practical Benefit |
|---|---|---|
| Batch baking | CircoTherm hot air | Even heat across up to three levels means trays bake together without shelf-swapping or hot spots. |
| Two-dish dinners | Independent 47 L and 34 L cavities | Run different temperatures in each oven, so mains and sides finish on time together. |
| Grilled finishes | Full surface grill in both ovens | Brown gratins or crisp sausages in either cavity, whichever is free at the time. |
| Delicate dishes | CircoTherm Gentle and Hotair Gentle | Lower-intensity hot-air settings cook gently, suited to dishes that resent fierce direct heat. |
| Compact kitchens | Built-under 71.7 cm format | Two ovens fit beneath the worktop, preserving wall units and worktop space above. |
| Straightforward control | LED display with mechanical dials | A clear red readout and simple knobs, with a panel lock to stop stray fingers changing settings. |
Specifications
| Brand | NEFF |
| Model | J1GCC0AN0B |
| Product Type | Built-Under Double Oven |
| Series | N30 |
| Colour | Stainless Steel |
| Main Oven Capacity | 47 Litres |
| Top Oven Capacity | 34 Litres |
| Main Oven Functions | 5 heating methods: CircoTherm, Top/Bottom Heat, Circo-Roasting, Full Surface Grill, CircoTherm Gentle |
| Top Oven Functions | 3 heating methods: Top/Bottom Heat, Full Surface Grill, Small Area Grill |
| Energy Rating (Main Oven) | A |
| Energy Rating (Top Oven) | B |
| Display | LED display (red) |
| Temperature Range | 50 °C - 275 °C |
| Interior Light | Halogen (main oven) |
| Main Oven Door | Drop-down door, full glass inner door |
| Safety | Control panel lock |
| Included Accessories | 2 x combination grid, 1 x universal pan |
| Connection Rating | 5300 W (hard-wired, no plug) |
| Fuse Protection | 25 A |
| Installation | Built-under |
| Dimensions (H x W x D) | 71.7 x 59.4 x 55 cm |
| Weight | 45.9 kg |
| Warranty | 2 Year Warranty |
The Verdict
Strengths
- Two independent ovens in one under-counter housing
- CircoTherm enables three-level baking in the main cavity
- A-rated main oven, 47-litre usable capacity
- Full surface grill in both cavities
- Two combination grids and universal pan included
- Control panel lock for household safety
- Stainless steel finish suits most cabinetry
Considerations
- No plug is fitted: the 5300-watt, 25-amp connection must be hard-wired by a qualified electrician as part of installation.
- There is no integrated self-cleaning system, so both cavities need conventional manual cleaning.
- The second cavity carries a B energy rating, so the main oven is the more efficient choice for everyday cooking.
What's in the Box
- Built-under double oven x1
- Combination grid x2
- Universal pan x1
- Installation/user manual x1




