Resideo AT140A1000 40VA Transformer 120V PRI 27V SEC

The Resideo AT140A1000 Transformer Second is a versatile, 40 VA transformer specifically designed for use in HVAC systems. Made to withstand temperatures ranging from -20°F to 105°F, it ensures reliable performance in various environments. This compact unit steps down primary voltage, converting a standard 120V AC (60 Hz) electrical input into a lower 27V AC output. Many HVAC components, like thermostats, relays, and control circuits, require lower voltage than the standard household supply. The Resideo AT140A1000 bridges this gap by providing a safe and reliable source of low voltage power. By isolating these delicate components from the higher line voltage, the transformer safeguards them from potential damage and ensures their proper operation. In essence, the Resideo AT140A1000 Transformer Second is a workhorse behind the scenes, providing the essential low voltage power that keeps your HVAC system functioning efficiently and safely.