
Panasonic Countertop Microwave Oven 1.3 Cu Ft
- Capacity: 1.3 cu ft
- Wattage: 1100 watts
- Turntable Diameter: 12.4 inches
- Heating Method: Electric
Last refreshed Jun 13, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A 1100 watt sensor microwave with a useful child lock and popcorn presets, let down for some buyers by a missing interior light and one report of the control failing to stop heating.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B01DPZD2GUModel: NN-SU656BCategory: Countertop Microwave Ovens
More from this brandAll Panasonic countertop microwave ovensOverview
The Panasonic NN-SU656B is a 1.3 cubic foot, 1100 watt countertop microwave with a Genius Sensor that reads steam output to set cooking time automatically. It adds a child safety lock, a quick 30 second button, and a popcorn setting with three power levels.
Buyer feedback flags two design changes from earlier Panasonic models worth knowing before purchase: this version drops the interior light and the front clock times out to save power, and one buyer found the unit about 1/8 inch taller than a prior version, which kept it from fitting an existing cabinet cutout.
- 1100 watts, 1.3 cu ft capacity
- Genius Sensor auto cook adjustment
- 12.4 inch turntable
- Child safety lock plus delay start
Who it's for
This fits a household replacing an aging microwave that wants sensor reheating and a child lock without paying for a built in unit. Anyone who relies on an always lit interior light or a clock that stays visible should check current unit dimensions against their cabinet space first.
Pros and cons
- 1100 watts with Genius Sensor auto adjust
- Child safety lock included
- Quick 30 second and popcorn buttons
- No interior light on this version
- Clock display times out
- One report of overrun past set time
Performance notes
The touch buttons are push buttons rather than fully touch sensitive, which one long time owner found harder to use precisely than her prior model's tactile buttons, and a separate review reported the unit continuing to microwave past the set time after about 15 months of use, worth confirming with Panasonic support if it occurs.
Specifications
| Brand | Panasonic |
|---|---|
| Model | NN-SU656B |
| Dimensions & fit | |
| Turntable Diameter | 12.4 inches |
| Item Weight | 35.3 poundshigher than 74% of 32 countertop microwave ovens |
| Capacity & performance | |
| Capacity | 1.3 cu fthigher than 73% of 94 countertop microwave ovens |
| Heating Method | Electric |
| Power & efficiency | |
| Wattage | 1100 wattshigher than 63% of 79 countertop microwave ovens |
| Number of Power Levels | 3 |
| Power Consumption | 1100 wattshigher than 57% of 64 countertop microwave ovens |
| Energy Consumption | 1100 wattshigher than 55% of 67 countertop microwave ovens |
| Voltage | 120 volts |
| Construction & materials | |
| Inner Material | Stainless Steel |
| Material Type | Stainless Steel |
| Color | Black |
| Compatibility & installation | |
| Installation Type | Countertop |
| Included components | |
| Unit Count | 1 |
| Included Components | Microwave |
| Warranty & support | |
| Warranty Description | 1 year |
| Other details | |
| Number of Programs | 7 |
| Control Type | Push Button |
| Timer Function | Timer Function Available |
| Frequency | 2450 MHz |
| Recommended Uses For Product | Vegetable |
| Additional Features | Manual |
| Item Type Name | Microwave Oven |
Closest rivals on specs
Frequently asked questions
How many watts does the Panasonic NN-SU656B put out?
It runs at 1100 watts in a 1.3 cubic foot capacity.
Does this microwave have a child safety lock?
Yes, a child safety lock is built in, along with delay start and a countdown timer.


