Our take
Panasonic documents the NN-SD987/SD997 family as an inverter microwave with 1,250 W cooking power, Sensor Cook, Sensor Reheat, Inverter Turbo Defrost and up to four cooking stages. Its electrical table keeps the 1,460-W/12.7-A input figure separate from cooking output and specifies 120 V/60 Hz. Exact-model records identify NN-SD987SA as a 2.2-cu.-ft. stainless countertop model; Panasonic's parts catalog lists the SA model separately from NN-SD987S and NN-SD987SATH. The owner's manual gives the SD987/SD997 family's dimensions and a 20-A grounded dedicated-circuit requirement. It also describes a trim-kit option and says the oven is for household use only, not commercial use. A rotating glass tray is documented, but its diameter is not. Amazon B0922R45Y7 returned an internal error, so the affiliate route searches NN-SD987SA and does not claim a direct ASIN match.
Panasonic NN-SD987SA is a candidate for buyers who need a large 2.2-cu.-ft. cavity and want documented inverter, sensor and Turbo Defrost functions. The exact model code is present as its own entry in Panasonic's parts catalog, separate from NN-SD987S and later NN-SD987SATH records. Panasonic's manual groups the SD987 and SD997 family at 1,250 W output, with 1,460 W/12.7 A electrical consumption on 120 V/60 Hz. It calls for a separate grounded 20-A circuit, so confirm the outlet before choosing it. The manual gives 23 7/8 × 14 × 20-inch exterior dimensions, 3 inches of side clearance and 1 inch above. It describes a rotating glass tray but publishes no diameter. A trim-kit route exists for the SD987/SD997 family; verify the exact accessory and cabinet opening for this unit before planning built-in installation. Panasonic identifies the family as household use only, not commercial. Amazon B0922R45Y7 could not be checked, so use the tagged search for NN-SD987SA and keep the ASIN unassigned..
Do not choose this model if the installation only has a shared or lower-rated circuit: Panasonic specifies a separate grounded 20-A, 120-V/60-Hz outlet. Do not treat the countertop unit as commercial equipment. If a dish must fit or rotate on a particular tray diameter, check the exact glass tray because the manual does not publish its size. Confirm trim-kit and cabinet-opening compatibility for the unit's full model suffix before cabinet installation.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- The manual documents 1,250 W cooking power, inverter operation, Sensor Cook, Sensor Reheat and Inverter Turbo Defrost.
- The exact NN-SD987SA model is listed separately and described as a 2.2-cu.-ft. stainless countertop oven by model records.
- Panasonic publishes grouped exterior and cavity dimensions, ventilation space, electrical input and a dedicated-circuit requirement.
- A manufacturer trim-kit path is documented for the SD987/SD997 family.
What to weigh up
- The separate grounded 20-A circuit requirement may rule out a location wired only for a shared or 15-A circuit.
- The manual gives no glass-tray diameter, so the turning clearance for a specific plate is unknown.
- The documented use class is household only; Panasonic says it is not approved or tested for commercial use.
- The historical Amazon ASIN could not be matched to the exact NN-SD987SA variant.
The key details
| Model covered | NN-SD987SA |
|---|---|
| Capacity | Panasonic's exact parts-catalog entry and Best Buy model record identify NN-SD987SA separately from NN-SD987S and NN-SD987SATH; exact-model records describe a 2.2-cu.-ft. cavity. |
| Microwave output | The Panasonic manual's NN-SD987/SD997 specification group lists 1,250 W cooking power and separately lists 1,460 W/12.7 A consumption at 120 V/60 Hz. |
| Cooking approach | The owner manual documents inverter operation, Sensor Cook, Sensor Reheat, Inverter Turbo Defrost, a rotating glass tray and up to four-stage cooking. |
| Installation options | The manual gives 23 7/8 × 14 × 20-inch exterior dimensions, 3-inch side and 1-inch top clearances, a separate grounded 20-A circuit requirement, and a trim-kit path for the SD987/SD997 family. Verify the exact kit and opening for the full model suffix. |
| Finish and turntable | Best Buy identifies the exact NN-SD987SA as stainless; the manual does not state tray diameter and classifies the oven as household-only, not approved or tested for commercial use. |
Performance figures are manufacturer claims. Source checked October 4, 2026. Regional models and included accessories can differ.
What the features mean for you
Keep the NN-SD987SA code distinct
The frozen title names NN-SD987SA, and both the Panasonic parts catalog and Best Buy show that full model code. The parts catalog lists NN-SD987S, NN-SD987SA and NN-SD987SATH as separate entries; Panasonic's dimension table also separately lists NN-SD987S and NN-SD997S. The operating manual covers the base SD987/SD997 family, which supports family features, but the suffixes should not be collapsed into aliases or used to move an ASIN between products. The Amazon route in the frozen record could not be checked.
Cooking power differs from electrical consumption
Panasonic lists 1,250 W cooking power and 1,460 W/12.7 A electrical consumption for the SD987/SD997 group, on 120 V/60 Hz. It also says to use a separate, grounded outlet rated at least 20 A. Check the branch circuit at the intended location and the appliance label; the 1,250-W cooking figure is not a substitute for the circuit requirement.
Sensor and inverter functions are named in the manual
The operating instructions include Sensor Cook, Sensor Reheat and Inverter Turbo Defrost, and permit up to four-stage cooking programs. These documented controls distinguish the family from models whose manuals list only timed cooking or preset buttons. They describe available functions, not a promise of a particular cooking result; use the Panasonic chart and directions for the food being prepared.
Check both the cabinet size and ventilation
Panasonic gives grouped exterior dimensions of 23 7/8 × 14 × 20 inches and cavity dimensions of 18 7/16 × 10 15/16 × 18 1/2 inches, listed width × height × depth for the cavity. The placement instructions call for 3 inches on both sides and 1 inch above. The exact NN-SD987SA is also listed as 2.2 cu. ft. by exact-model product records. Measure the counter, shelves and dishware against the physical unit; nominal volume does not give a turntable diameter.
A trim-kit path is not a complete cabinet plan
Panasonic's manual includes a trim-kit section for the NN-SD987/SD997 family. The same manual gives specific electrical, ventilation and cabinet measurements; use the instructions for the exact kit and full model suffix before cutting an opening. This family support does not mean the microwave may be installed as a built-in without the separate compatible kit.
Panasonic limits this family to household use
The manual says the oven is manufactured for household use only and is not approved or tested for mobile, marine or commercial use. Treat that as the manufacturer's duty classification even though the appliance has high output and a large capacity. It is not a substitute for a foodservice model when commercial use is required.
What else to compare
For a smaller documented household Panasonic model, compare NN-SD696S: its manufacturer manual lists 1,300 W output, Sensor Cook/Reheat and a separate grounded 20-A circuit, but does not establish its nominal capacity. The SD987SA provides the larger 2.2-cu.-ft. exact-model capacity record and inverter Turbo Defrost; compare the actual cabinet opening and required circuit for either unit.
Before you buy
What capacity is NN-SD987SA?
Exact-model records list 2.2 cu. ft.; Panasonic's dimension table separately lists NN-SD987S at 2.2 cu. ft., so the exact-SA capacity is based on the exact parts-catalog and product records.
What are the cooking-power and input figures?
Panasonic lists 1,250 W cooking power and 1,460 W/12.7 A input at 120 V/60 Hz for the SD987/SD997 group.
What circuit does Panasonic require?
A separate grounded outlet rated at least 20 A, 120 V/60 Hz.
Does it have sensor cooking and inverter defrost?
Yes. The manual documents Sensor Cook, Sensor Reheat and Inverter Turbo Defrost.
What size is the exterior?
The manual's SD987/SD997 group dimensions are 23 7/8 × 14 × 20 inches, with 3 inches at both sides and 1 inch above for airflow.
Can I use a trim kit?
The manual includes a trim-kit path for the SD987/SD997 family. Verify the exact kit and opening for the full model code before installation.
How large is the glass tray?
The manual requires its glass tray but does not list a diameter, so that measurement remains unknown.
Is it intended for commercial use?
No. Panasonic says the family is household use only and is not approved or tested for commercial use.
Does Amazon ASIN B0922R45Y7 match NN-SD987SA?
The Amazon route returned an internal error. This entry uses a tagged exact-model search and leaves the historical ASIN unassigned.
Where can I check the current price?
Use the Amazon link for current offers. Check the exact model, seller, product condition, delivery, and return terms. This page does not display a live price or confirm stock.
Sources & review basis
We use the following manufacturer documentation for the product features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- Panasonic NN-SD787/SD797/SD987/SD997 operating instructions ↗ — checked October 4, 2026.
- Panasonic operating instructions: model-family cover, Sensor Cook/Reheat, Turbo Defrost, four-stage cooking, household-only classification, clearances, electrical requirements, specifications and family trim-kit section ↗ — checked October 4, 2026.
- Panasonic parts catalog listing exact NN-SD987SA separately from NN-SD987S and NN-SD987SATH; exact SA description states 2.2 cu. ft. ↗ — checked October 4, 2026.
- Best Buy exact-model record identifying NN-SD987SA, 2.2 cu. ft., 1,250 W and stainless finish; no consumer-review content used ↗ — checked October 4, 2026.
- Panasonic comparison table entry for NN-SD987S and separate NN-SD997S; corroborates the 2.2-cu.-ft. family size but is not used as sole exact-SA evidence ↗ — checked October 4, 2026.
- Historical Amazon ASIN checked 2026-10-04; fetch returned an internal error, so exact identity is not claimed ↗Paid link · We may earn a commission. — checked October 4, 2026.
The decision
Panasonic NN-SD987SA is a large, household-only countertop inverter microwave with exact-model records for 2.2 cu. ft. and a Panasonic family-manual rating of 1,250 W output. The manual also documents sensor cooking, Turbo Defrost, a 20-A dedicated circuit, family dimensions and a trim-kit path. Its turntable diameter is not published. Keep NN-SD987SA separate from NN-SD987S, NN-SD987SATH and NN-SD997S. Amazon B0922R45Y7 could not be verified; use the tagged exact-model search.
Is it the right fit?
Check the exact model and today’s offers on Amazon.