A sublimit is defined as a different upper limit within an insurance policy for a Sum insured.

For example, in personal liability insurance, the Sum insured be insured for property damage up to 10 million euros, but the damage to rented property covered under the policy is limited to a sublimit of 100,000 euros.

 

Source reference: See the VDT publication “VDT Article Series, Part 5 | Glossary“ and the source cited there.