Functional Devices PSH100A100AB10 Power Supply

The Functional Devices PSH100A100AB10 is a high-performance encased dual 100VA power supply designed for rigorous building automation and HVAC industrial control applications. This unit features two split-bobbin transformers that step down 120 Vac to 24 Vac, providing a reliable UL Class 2 power source for sensitive controller hardware. Engineered for seamless panel mounting, the PSH100A100AB10 includes a built-in 10 Amp main circuit breaker and dedicated 4 Amp breakers for each secondary output to prevent equipment damage from over-current events. The integrated 120V convenience outlets and auxiliary output wires simplify field wiring, while diagnostic LED indicators provide immediate visual confirmation of 24 Vac presence. With its robust metal enclosure and 50/60 Hz frequency compatibility, this 24V control transformer assembly ensures consistent performance in demanding environments, though professional installers should account for output derating in ambient temperatures exceeding 40°C.

• Dual 100VA Output: Supplies independent 24 Vac power via two specialized transformers for complex control loops.
• Integrated Protection: Features a 10 Amp master switch/breaker and individual secondary breakers, eliminating the need for external fuse blocks.
• Contractor-Friendly Design: Includes two 120 Vac grounded outlets and internal high-voltage wiring compartments for faster site commissioning.
• System Monitoring: Red LED indicators on each output provide instant status updates for easier troubleshooting of low-voltage circuits.
• Safety Compliance: Meets strict UL916, UL508, and Class 2 standards, ensuring code compliance for building automation systems.

How do I ensure the convenience outlets remain powered independently?
The unit features an internal jumper that can be moved to the "HOT" position if you require the 120 Vac outlets to remain active even when the main breaker is switched off.

What is the maximum total current load for this power supply?
The PSH100AB10 is rated for a total combined output of 9A across all integrated features, including the auxiliary wires and outlets.

Can this unit be mounted in any orientation?
Yes, the included mounting plate and NEMA 1 style metal enclosure allow for flexible installation on walls or within larger control panels.

This item is not eligible for free shipping.

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.