Del. Code Ann. tit. 6, § 9-628
(a) Limitation of liability of secured party for noncompliance with Article. — Subject to subsection (f), unless a secured party knows that a person is a debtor or obligor, knows the identity of the person, and knows how to communicate with the person:
(b) Limitation of liability based on status as a secured party. — Subject to subsection (f), a secured party is not liable because of its status as secured party:
(1) to a person that is a debtor or obligor, unless the secured party knows:
(2) to a secured party or lienholder that has filed a financing statement against a person, unless the secured party knows:
(c) Limitation of liability if reasonable belief that transaction not a consumer-goods transaction or consumer transaction. — A secured party is not liable to any person, and a person’s liability for a deficiency is not affected, because of any act or omission arising out of the secured party’s reasonable belief that a transaction is not a consumer-goods transaction or a consumer transaction or that goods are not consumer goods, if the secured party’s belief is based on its reasonable reliance on:
Subsections (a) and (b) do not apply to limit the liability of a secured party to a person if, at the time the secured party obtains control of collateral that is a controllable account, controllable electronic record, or controllable payment intangible or at the time the security interest attaches to the collateral, whichever is later: