Surge protection device - PT-IQ-2X2-EX-24DC-UT - 2801513 Surge protection, consisting of protective plug and base element, with integrated multi-stage status indicator on the module for two 2-wire floating Ex-i signal circuit. PT-IQ-2X2-EX-24DC-UT Surge protection device - PT-IQ-2X2-EX-24DC-UT - 2801513 Surge protection, consisting of protective plug and base element, with integrated multi-stage status indicator on the module for two 2-wire floating Ex-i signal circuit. 2801513 2801512