A potential relay pulls in on a ______ increase.

Prepare for the HVAC D-2 License Exam. Study with flashcards and multiple-choice questions. Each question comes with hints and explanations. Get ready for your HVAC certification!

Multiple Choice

A potential relay pulls in on a ______ increase.

Explanation:
A potential relay is driven by voltage. It energizes when the sensed voltage rises above its pickup point, so the contacts change state as the voltage increases. This is what makes it a voltage-operated device. In contrast, a current-relay would respond to higher current, not voltage, and devices that sense resistance or power operate on different principles. So when voltage climbs, the potential relay pulls in.

A potential relay is driven by voltage. It energizes when the sensed voltage rises above its pickup point, so the contacts change state as the voltage increases. This is what makes it a voltage-operated device. In contrast, a current-relay would respond to higher current, not voltage, and devices that sense resistance or power operate on different principles. So when voltage climbs, the potential relay pulls in.

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