Part ATQR4-1/2 covers the 4.5A rating point in Mersen’s ATQR Series. Core electrical data includes 600V AC / 300V DC operation and 200kA AC / 100kA DC interruption. This makes it suitable where rejection-style Class CC protection with time-delay response for inductive inrush.
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ATQR4-1/2 is Mersen’s 4.5A catalog option in the ATQR Series. The circuit rating is 600V AC / 300V DC; published interrupting performance is 200kA AC / 100kA DC. For application coordination, note its rejection-style Class CC protection with time-delay response for inductive inrush. The Class CC format uses ferrule terminals with cartridge/clip mounting. Typical selection contexts include Lighting & Heating, Branch Circuits, Control Transformers. For design release, confirm coordination, dimensions and approval details in the official Mersen documentation.
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