Our take
Sharp's manual identifies R-510HW as the white R-510H variant and specifies a 2.0-cu.-ft. cavity, 1,200-W microwave output and 16-in. turntable. It separately lists 1,700 W and 14.3 A for electrical input, which matters when checking the available supply. The manual supports ordinary countertop placement with clearances and names two white built-in kits for this exact model. Cook Center, Reheat, Defrost Center and Keep Warm are documented programs, but I found no sensor-cooking statement. The historical B0000BVQH0 Amazon page returned an internal error, so this uses a tagged model search rather than asserting the ASIN. This is a manual-based assessment, not a personal test or buyer-review summary.
A large white Sharp microwave for kitchens where the 16-in. rotating tray and a documented R-510HW trim-kit route are useful, provided the actual cabinet opening, clearances and electrical supply meet Sharp's manual..
Skip it if you need a compact appliance, documented sensor cooking, a foodservice microwave or a current direct Amazon ASIN match. Do not choose a trim kit based on the shared R-510 name alone; verify the R-510HW suffix and Sharp's cabinet-opening instructions.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- Sharp specifies 2.0 cu. ft. and a 16-in. turntable, giving concrete dimensions to compare with larger cookware.
- The manual separates 1,200 W microwave output from 1,700 W / 14.3 A electrical input.
- Sharp names RK-51W and RK-51W30 for R-510HW specifically while also giving countertop placement clearances.
- Documented controls include Cook Center, Reheat, Defrost Center, Keep Warm and Night Light alongside manual power-level control.
What to weigh up
- The 24-in. outside width and 16-in. turntable make fit a key check; nominal capacity does not guarantee that a particular dish will rotate.
- Sharp lists 1,700 W input and 14.3 A and calls for a protected supply of at least 15 A, with a dedicated circuit recommended.
- Automatic presets are documented, but sensor-cooking status remains unknown.
- The historical Amazon page failed to load, so there is no direct exact-ASIN destination.
The key details
| Model covered | R-510HW |
|---|---|
| Capacity | 2.0 cu. ft. nominal capacity; Sharp says actual food-holding capacity is less than the maximum-dimension calculation |
| Microwave output | 1,200 W microwave output, separate from 1,700 W / 14.3 A electrical input at single-phase 120 V / 60 Hz |
| Cooking approach | Cook Center, Reheat, Defrost Center, Keep Warm and Night Light; the reviewed manual does not confirm sensor cooking |
| Installation options | Countertop directions specify 2-in. clearance at sides, top and rear; white kits RK-51W and RK-51W30 are named for exact R-510HW; classified as Home Use and not designed for industrial or laboratory use |
| Finish and turntable | 16-in. turntable; outside dimensions 24 × 13⅜ × 19⅛ in. and cavity 17⅜ × 10½ × 18⅝ in.; Sharp defines K as black and W as white, so R-510HW is white and distinct from R-510HK/R-510D |
Performance figures are manufacturer claims. Source checked October 5, 2026. Regional models and included accessories can differ.
What the features mean for you
R-510HW is the white H-family model
The frozen source row supplies exact model R-510HW. Sharp's operation manual says the final letter identifies color: K is black and W is white. It lists black R-510HK and white R-510HW trim-kit paths separately, so keep the full suffix intact. Do not merge this model with similarly named over-the-range R-510 units or the R-510D family. The reviewed manual establishes R-510HW as the white R-510H variant; no additional alias is proved.
Compare cavity and rotating-dish dimensions
Sharp lists 2.0 cu. ft. and a 16-in. turntable, with a 24 × 13⅜ × 19⅛-in. outer envelope. The manual notes that the nominal capacity calculation uses maximum inside width, depth and height, so usable food-holding capacity is less. For a wide platter, check the tray, usable cavity, door opening and counter space instead of relying on the capacity figure alone. These are printed specifications, not a cookware-fit test.
Separate microwave output from electrical draw
The specification page gives 1,200 W as output and separately lists 1,700 W and 14.3 A for electrical input at 120 V, 60 Hz. Sharp's installation section calls for a protected 15-A-or-more supply and recommends a separate circuit for the oven. Output is the microwave cooking rating; input and amperage matter for the electrical supply. Check the actual kitchen circuit and applicable requirements before planning placement.
Use the documented white trim-kit route
Sharp's countertop placement instructions specify at least two inches of air space at the sides, top and rear. It separately says the oven can be built into a cabinet or wall with white RK-51W or RK-51W30 kits for R-510HW and warns against locating it near or above a heat source. That model-specific instruction confirms compatibility with those exact kits; it does not mean a bare oven may simply be enclosed. Check the exact cabinet opening and use the matching kit directions.
Treat the presets as programs, not a sensor claim
Sharp lists Cook Center, Reheat, Defrost Center and Keep Warm, with food-category and amount selections. The manual also documents a Night Light and manual power levels. I found no sensor-cooking reference in the reviewed instructions, so sensor-cooking status remains unknown; an automatic program name alone is not evidence of a humidity sensor. Buyers who specifically want sensor automation should check the exact model documentation for that feature.
Check the exact Amazon model result
The historical Amazon page for B0000BVQH0 returned an internal error when reopened. The destination searches for Sharp R-510HW white microwave with the buyershortlists-20 tag instead of claiming the old ASIN identifies a current offer. Confirm the full R-510HW code and white finish in any current result. No current price, stock, sales or Amazon buyer-review claim is made.
What else to compare
If counter space is tight, compare models with smaller published outside dimensions and verify their usable cavity. If sensor cooking is essential, choose a model whose instructions expressly document it. For an R-510HW installation, compare the exact white kit size against the cabinet plan and check the electrical supply.
Before you buy
What capacity and output does R-510HW have?
Sharp lists 2.0 cu. ft. and 1,200 W microwave output. The same table lists 1,700 W electrical input and 14.3 A separately.
What size dishes fit on its turntable?
Sharp specifies a 16-in. turntable and cavity dimensions of 17⅜ × 10½ × 18⅝ in.; compare the actual dish and usable opening rather than capacity alone.
Can I use a built-in trim kit?
Sharp names white RK-51W and RK-51W30 kits specifically for R-510HW. Follow the kit directions and verify the cabinet opening.
Is R-510HW the same as R-510HK?
They are the white and black variants of the R-510H family: Sharp defines W as white and K as black. Keep the full model suffix when checking fit and parts.
Does this model have sensor cooking?
The reviewed operation manual lists automatic food programs but does not confirm sensor cooking, so that attribute remains unverified.
Is it for commercial foodservice?
No. Sharp calls the R-510H a Home Use Carousel Microwave Oven and says it is not designed for industrial or laboratory use.
Is B0000BVQH0 a direct Amazon match?
The historical page returned an internal error. Use the tagged exact-model search and verify the R-510HW white variant in the result.
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.
- Sharp R-510HK/HW operation manual, model legend, installation directions and specifications ↗ — checked October 5, 2026.
- Sharp R-510HK/HW operation manual checked 2026-10-05. Front matter says model R-510H followed by K=black or W=white; printed p. 2 calls it a Home Use Carousel Microwave Oven and says it is not designed for industrial or laboratory use; printed p. 3 gives 120 V/60 Hz and a protected 15-A-or-more supply; printed p. 4 gives countertop clearances and names white kits RK-51W/RK-51W30 specifically for R-510HW; printed p. 20 lists 1,700 W / 14.3 A input, 1,200 W output, 2.0 cu. ft., 16-in. turntable and dimensions. Manufacturer manual hosted by Opweb. ↗ — checked October 5, 2026.
- Sears PartsDirect exact-model page inspected 2026-10-05; identifies R-510HW as a countertop microwave. Used only as a category cross-check, not for specifications or current availability. ↗ — checked October 5, 2026.
- Historical Amazon ASIN page returned an internal error on 2026-10-05. The merchant destination is a tagged exact-model search, not a direct ASIN link. ↗Paid link · We may earn a commission. — checked October 5, 2026.
The decision
Sharp documents R-510HW as the white 2.0-cu.-ft. R-510H variant with a 16-in. turntable, 1,200 W output, separate 1,700 W / 14.3 A input and exact white built-in options RK-51W/RK-51W30. Its presets do not establish sensor cooking. The old Amazon ASIN page failed; verify the model in the tagged search.
Is it the right fit?
Check the exact model and today’s offers on Amazon.