WASHINGTON — When the Affordable Care Act’s health insurance marketplace opens in two weeks, many consumers will have a new option for the law’s fourth open-enrollment period: standardized health plans that cover basic services without a deductible.

With many health plans on the marketplace coming with deductibles in the thousands of dollars, consumers have complained that they were getting little benefit beyond coverage for catastrophic problems. The new standardized options are meant to address that concern — to ensure that “enrollees receive some upfront value for their premium dollars,” as the Obama administration said.

“Too many people, especially people on high-deductible plans, are still struggling to afford the care they need,” Senator Sherrod Brown, Democrat of Ohio, said, praising the new effort.

But the new plans could still be costly. While the federal government specifies deductibles, co-payments and other out-of-pocket costs for the standardized options, it does not limit premiums, which in most cases are still regulated by state insurance commissioners. The administration has said it does not expect the standardized options to have a significant effect on premiums in 2017.