MARS 33247 SPDT N/O Thermal Time Delay Relay

The MARS 33247 SPDT N/O Thermal Time Delay Relay functions as a specialized control component that serves HVAC systems by providing accurate timing functions to control electrical circuits effectively. This operates at 24V to control a single-pole double-throw switch with a normally open auxiliary contact. This functions in air conditioning and refrigeration systems to protect time-sensitive components, like compressors and fans through its use in preventing short cycling and ensuring operational stability. This delays connected equipment activation or deactivation through a thermal element that heats up gradually to trigger the switch. A timing process regulates the delay between equipment activation to safeguard HVAC equipment against quick cycling and to minimize damage while improving component durability.