Description
Overview
The Functional Devices PSH40A is a 40 VA enclosed power supply designed to step down 120V AC line voltage to a stable 24V AC output, making it an ideal solution for powering HVAC control systems, building automation devices, and low-voltage accessories. Its enclosed housing provides protection for the internal transformer and circuitry, supporting safe and reliable operation in commercial and residential HVAC applications.
Key Features
- Primary input voltage: 120V AC
- Secondary output voltage: 24V AC
- Power rating: 40 VA
- Enclosed housing for protection of internal components
- Suitable for powering thermostats, zone controls, actuators, and other 24V HVAC control devices
- Compact design for easy installation in control panels or equipment enclosures
- Manufactured by Functional Devices, a trusted name in HVAC power and control products
Applications
- HVAC control system power supply
- Building automation and zone control panels
- Low-voltage thermostat and actuator power
- Commercial and light industrial control circuits
Why Choose the PSH40A
Functional Devices has built a strong reputation in the HVAC and building controls industry for producing dependable, application-specific power solutions. The PSH40A’s enclosed design protects the transformer from dust and accidental contact, while its 40 VA capacity provides ample power headroom for multiple 24V devices on a single circuit. Whether you’re powering zone damper actuators, thermostats, or control boards, the PSH40A delivers consistent, clean 24V AC power you can count on.
