
Functional Devices PSM20A12DAS Power Supply
The Functional Devices PSM20A12DAS is a heavy-duty, track-mounted isolated linear DC power supply designed for precision in building automation and HVACR control systems. Engineered to convert a 24 VAC input into a stable, adjustable 1.5-14 VDC output, this unit is a staple for technicians powering sensitive low-voltage sensors, thermostats, and controllers that require ripple-free power. With a 300mA output current rating and Class 2 UL listing, it ensures safety and reliability in complex control loops. For streamlined field diagnostics, the integrated LED power indicator confirms activation at a glance, while the 2-position ON/OFF switch allows for safe local isolation during maintenance. The linear regulation architecture provides an exceptionally clean signal with a minute 0.0016% ripple, protecting your downstream electronics from electrical noise. Ruggedly constructed to perform in ambient temperatures ranging from -30 to 140°F, this adjustable power supply mounts easily on both 4.00" and 2.75" tracks, with the MT212-4 mounting track included for immediate installation.
Key Benefits- Precision Voltage Control: Fully adjustable 1-14V DC output allows for exact calibration to match specific hardware requirements.
- Protection Circuitry: Features built-in electrical and thermal overload protection with an auto-reset function to prevent equipment damage.
- Industrial Durability: Solid-state linear power supply design with high-quality filter capacitors for long-term service in demanding environments.
- Standardized Mounting: Versatile track mount compatibility ensures seamless integration into existing control cabinets.
What is the maximum current load for this unit?
The PSM20A12DAS provides a steady 300mA output, making it ideal for low-draw automation components and signal transmitters.
Does this power supply require a specific mounting orientation?
No, the 4-inch track mount design allows for flexible installation on standard 2.75" or 4.00" tracks within any NEMA enclosure or panel.
How do I verify if the unit is receiving power?
The unit features a high-visibility LED status indicator that remains lit when the 24V power supply is active and functional.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Functional Devices PSM20A12DAS Power Supply
The Functional Devices PSM20A12DAS is a heavy-duty, track-mounted isolated linear DC power supply designed for precision in building automation and HVACR control systems. Engineered to convert a 24 VAC input into a stable, adjustable 1.5-14 VDC output, this unit is a staple for technicians powering sensitive low-voltage sensors, thermostats, and controllers that require ripple-free power. With a 300mA output current rating and Class 2 UL listing, it ensures safety and reliability in complex control loops. For streamlined field diagnostics, the integrated LED power indicator confirms activation at a glance, while the 2-position ON/OFF switch allows for safe local isolation during maintenance. The linear regulation architecture provides an exceptionally clean signal with a minute 0.0016% ripple, protecting your downstream electronics from electrical noise. Ruggedly constructed to perform in ambient temperatures ranging from -30 to 140°F, this adjustable power supply mounts easily on both 4.00" and 2.75" tracks, with the MT212-4 mounting track included for immediate installation.
Key Benefits- Precision Voltage Control: Fully adjustable 1-14V DC output allows for exact calibration to match specific hardware requirements.
- Protection Circuitry: Features built-in electrical and thermal overload protection with an auto-reset function to prevent equipment damage.
- Industrial Durability: Solid-state linear power supply design with high-quality filter capacitors for long-term service in demanding environments.
- Standardized Mounting: Versatile track mount compatibility ensures seamless integration into existing control cabinets.
What is the maximum current load for this unit?
The PSM20A12DAS provides a steady 300mA output, making it ideal for low-draw automation components and signal transmitters.
Does this power supply require a specific mounting orientation?
No, the 4-inch track mount design allows for flexible installation on standard 2.75" or 4.00" tracks within any NEMA enclosure or panel.
How do I verify if the unit is receiving power?
The unit features a high-visibility LED status indicator that remains lit when the 24V power supply is active and functional.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Functional Devices PSM20A12DAS is a heavy-duty, track-mounted isolated linear DC power supply designed for precision in building automation and HVACR control systems. Engineered to convert a 24 VAC input into a stable, adjustable 1.5-14 VDC output, this unit is a staple for technicians powering sensitive low-voltage sensors, thermostats, and controllers that require ripple-free power. With a 300mA output current rating and Class 2 UL listing, it ensures safety and reliability in complex control loops. For streamlined field diagnostics, the integrated LED power indicator confirms activation at a glance, while the 2-position ON/OFF switch allows for safe local isolation during maintenance. The linear regulation architecture provides an exceptionally clean signal with a minute 0.0016% ripple, protecting your downstream electronics from electrical noise. Ruggedly constructed to perform in ambient temperatures ranging from -30 to 140°F, this adjustable power supply mounts easily on both 4.00" and 2.75" tracks, with the MT212-4 mounting track included for immediate installation.
Key Benefits- Precision Voltage Control: Fully adjustable 1-14V DC output allows for exact calibration to match specific hardware requirements.
- Protection Circuitry: Features built-in electrical and thermal overload protection with an auto-reset function to prevent equipment damage.
- Industrial Durability: Solid-state linear power supply design with high-quality filter capacitors for long-term service in demanding environments.
- Standardized Mounting: Versatile track mount compatibility ensures seamless integration into existing control cabinets.
What is the maximum current load for this unit?
The PSM20A12DAS provides a steady 300mA output, making it ideal for low-draw automation components and signal transmitters.
Does this power supply require a specific mounting orientation?
No, the 4-inch track mount design allows for flexible installation on standard 2.75" or 4.00" tracks within any NEMA enclosure or panel.
How do I verify if the unit is receiving power?
The unit features a high-visibility LED status indicator that remains lit when the 24V power supply is active and functional.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












