Our take
Panasonic's exact NN-SN77HS guide and family manual list 1.6 cu. ft., 1,250-W cooking output, Cyclonic Inverter, sensor cooking and a 120-V / 60-Hz supply. Its 21 7/8 x 19 7/16 x 11 15/16-in. body is a medium-large counter appliance. Unlike several countertop models, Panasonic's current finder lists multiple trim-kit paths; the family manual names 27-in. NN-TK722S and 30-in. NN-TK732S kits with specified cabinet openings. The finish and turntable diameter are not documented here, and the shorter code must remain distinct from NN-SN77HSATH. This is source-based analysis, not testing.
Consider NN-SN77HS when a medium-large sensor cavity and optional built-in path are useful. Measure the 21 7/8 x 19 7/16 x 11 15/16-in. body and verify the exact trim kit and opening. Confirm the unit code, finish, tray and supply rating; do not transfer NN-SN77HSATH suffix evidence to the shorter model..
Choose another microwave if you need a smaller footprint, a confirmed finish or turntable diameter, or a direct Amazon page whose exact suffix has been verified. Check the trim kit and cabinet opening before purchase.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- Panasonic specifies a 1.6-cu.-ft. cavity, 1,250-W output and Cyclonic Inverter with sensor cooking.
- The family manual gives 120 V / 60 Hz and separates 1,460-W / 12.3-A input from cooking output.
- Panasonic documents two optional trim-kit sizes and model-specific cabinet openings.
What to weigh up
- The body is nearly 22 inches wide and about 19.5 inches deep, so counter and cabinet measurements matter.
- The reviewed sources do not state the finish or turntable diameter for this exact shorter code.
- A renewed historic ASIN does not establish the current model suffix or offer identity.
The key details
| Model covered | NN-SN77HS |
|---|---|
| Capacity | Panasonic lists 1.6 cu. ft. and 1,250 W output for exact model NN-SN77HS. |
| Microwave output | The family manual specifies 120 V / 60 Hz and separately lists 1,460-W / 12.3-A electrical consumption. |
| Cooking approach | Cyclonic Inverter, Sensor Cook/Reheat, Turbo Defrost and keep-warm functions are documented for the model family. |
| Installation options | Panasonic's finder lists multiple trim kits; the manual gives 27-in. NN-TK722S and 30-in. NN-TK732S options and cabinet openings. |
| Finish and turntable | The finish, turntable diameter and mapping of renewed ASIN B00I8L9UO6 to the shorter NN-SN77HS code remain unresolved. |
Performance figures are manufacturer claims. Source checked October 9, 2026. Regional models and included accessories can differ.
What the features mean for you
A mid-large sensor cavity with named dimensions
Panasonic lists a 1.6-cu.-ft. cavity and a 21 7/8-in.-wide, 19 7/16-in.-deep, 11 15/16-in.-high body. This gives more stated volume than compact models without moving to a 2.2-cu.-ft. exterior. Capacity is not a dish-fit guarantee, and the reviewed manual does not publish turntable diameter. Measure plates, casserole handles and cabinet depth against the actual cavity and door swing. If you use large platters, confirm the tray and opening before deciding that 1.6 cu. ft. is enough.
Treat the output and input ratings separately
The exact family manual lists 1,250 W cooking output and 1,460 W / 12.3 A consumption on 120 V / 60 Hz. The output number belongs in a microwave-power comparison; the input and amperage matter for the electrical plan. The distinction is especially useful when replacing a microwave because a display label that says 1,250 W is not the full circuit requirement. Follow the exact unit plate and manual, verify grounding and circuit capacity, and do not use output as a claim about timed cooking performance.
Sensor and Cyclonic Inverter features are documented
Panasonic identifies Cyclonic Inverter and sensor cook/reheat for NN-SN77HS. The manual's sensor instructions describe automatic programs and advise following the food charts. Those features distinguish it from a model with only timed and one-touch controls, but they are not a guarantee that every serving size will suit an automatic cycle. The manual retains manual cooking stages and defrost guidance for other tasks. Treat sensor cooking as an option to compare, and check whether its menus fit your food routine rather than assuming every sensor program works for every container.
Use the manual's exact optional trim-kit route
Panasonic's U.S. finder lists multiple trim kits for NN-SN77HS. The family owner manual names 27-in. NN-TK722S and 30-in. NN-TK732S and specifies respective cabinet openings. The kit is a separate installation component, not a standard countertop accessory or proof that any cabinet will fit. Verify the exact kit suffix, opening depth, ventilation and model code before designing a built-in placement. This documented option is a practical distinction from NN-SN736W, for which Panasonic lists no kit, but it does not make the two models interchangeable.
Keep the shorter code and suffix unknowns intact
The frozen candidate identifies NN-SN77HS. A saved retailer record contains NN-SN77HSATH, but that longer suffix does not establish a variant mapping for the shorter manufacturer's code. Keep the product ID as NN-SN77HS and do not borrow finish or offer facts from the ATH listing. The reviewed maker sources do not establish the finish or tray diameter, so both remain unknown. This cautious boundary preserves an exact product identity while still using the family manual for shared features that explicitly include NN-SN77HS.
Search and confirm the current offer
The historical renewed Amazon ASIN did not prove that its page maps to the shorter NN-SN77HS code. The shopping link searches the full model name with the affiliate tag. Check the suffix, condition, finish, tray and included trim parts in a seller's listing before purchase. The search destination does not make a statement about present price or stock. If a trim-kit installation is central, verify the exact kit and cabinet opening using Panasonic's instructions instead of relying on a broad title or a retailer's family-level claim.
What else to compare
Panasonic NN-SN736W shares 1.6-cu.-ft. capacity, 1,250-W output and sensor features but has no listed trim kit. Panasonic NN-H965BF offers 2.2 cu. ft. and a documented black finish, though Panasonic says its trim kit is no longer available. NN-SN77HS stands out for a supported optional trim route, while its finish and turntable diameter remain unknown.
Before you buy
What capacity and output does NN-SN77HS have?
Panasonic lists a 1.6-cu.-ft. cavity and 1,250-W cooking output for the model.
Does it document sensor cooking?
Yes. Panasonic lists sensor cook and reheat for NN-SN77HS in its family guide and owner manual.
Which trim kits are listed?
The family manual names 27-in. NN-TK722S and 30-in. NN-TK732S options with separate cabinet openings.
Is the finish confirmed?
The reviewed manufacturer sources do not establish the finish for the shorter NN-SN77HS code.
Is NN-SN77HSATH the same model?
The longer retailer suffix is not mapped to the shorter manufacturer code in this record; verify the exact label.
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-SN77HS product guide, family owner manual and U.S. trim-kit finder ↗ — checked October 9, 2026.
- Panasonic exact NN-SN77HS product guide, checked 2026-10-09; confirms model support and links the exact family manual. ↗ — checked October 9, 2026.
- Panasonic NN-SN77HS/NN-SN97HS owner manual, checked 2026-10-09; specifies output, input, supply, dimensions, sensor features, household use and model-specific trim-kit openings. ↗ — checked October 9, 2026.
- Panasonic official U.S. trim-kit finder, checked 2026-10-09; lists multiple kits for NN-SN77HS. ↗ — checked October 9, 2026.
The decision
NN-SN77HS is a 1.6-cu.-ft., 1,250-W Cyclonic Inverter sensor microwave with 120-V / 60-Hz supply and documented optional 27/30-in. trim kits. Measure the substantial body and verify the exact opening. Finish, tray diameter and renewed ASIN mapping remain unresolved.
Is it the right fit?
Check the exact model and today’s offers on Amazon.