The first question for an HBLP651UC is not about the oven, but about the house. This Benchmark double wall oven draws 9,200 watts across two 4.6 cubic foot cavities, which is the biggest electrical load of any Bosch cooking appliance sold in America, and the circuit has to be able to deliver it.
The oven cannot be derated to fit a weaker circuit. In an older home, confirming the electrical supply comes before ordering, and the figure to rely on is the one published for this model, not what the previous oven used.
The unit fits a 52 1/16 inch column, with soft-close doors on both cavities, all the Benchmark modes, touch control and Sabbath mode. In service, we expect the two dampers to wear at different rates, since the cavities do not get equal use. The cavities share one control module. An element, sensor or fan problem stays in its own cavity, but a module problem reaches both.
Bosch publishes the required circuit for this exact model, and the draw is higher than on any other Bosch cooking appliance here. Do not guess from what the old oven used. Have an electrician confirm the circuit before the oven is ordered, because the figure cannot be negotiated.
For element, sensor or fan trouble, usually yes, since those stay within a single cavity. A shared control module problem is the exception and will affect both.
No. The oven cannot be derated or limited, so the circuit has to meet the published requirement. If the wiring in your house falls short, the wiring must be upgraded.
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