TTD300 and TTD300-N Flameproof Temperature Transmitters PESO Approval Letter

This document is an official approval letter from the Petroleum & Explosives Safety Organisation (PESO) granting approval for ABB India Limited to manufacture and supply flameproof temperature transmitters (models TTD300 and TTD300-N) for use in Zone 1 gas hazardous areas under the Petroleum Rules, 2002. The approval is based on compliance with IEC 60079-0:2017 and IEC 60079-1:2014 standards, supported by test reports from FM Approvals Ltd., and includes conditions for marking, maintenance, and validity until December 31, 2028.