Johnson Controls PSH100A100A Power Supply

The Johnson Controls PSH100A100A Power Supply is a professional-grade, enclosed dual 100 VA solution designed specifically for building automation systems (BAS) and complex industrial control panels. Featuring two 100 VA split bobbin transformers, this unit effectively isolates high-voltage circuits, converting 120 Vac primary input into reliable 24 Vac secondary output. Each transformer is housed in a rugged metal enclosure, providing a clean, pre-wired setup that significantly reduces the manual labor typically associated with installing discrete components. Its external terminal strip allows for rapid field wiring, making it a preferred choice for contractors managing multi-device loads.

Built for the rigors of commercial HVACR environments, this power supply includes integrated circuit breakers for overcurrent protection, ensuring the longevity of downstream controllers and actuators. The UL Class 2 rating simplifies compliance with NEC requirements for low-voltage power sources. With LED indicators for real-time 24 Vac status monitoring, technicians can quickly diagnose power issues without opening the enclosure. This model is engineered for panel mounting and offers 50/60 Hz compatibility, making the PSH100A100A a dependable hub for your next control sub-panel integration.

• Dual 100 VA output provides high-capacity power for multiple actuators and controllers from a single enclosure.
• Split bobbin design ensures high-voltage isolation and stable 24 Vac power delivery.
• External terminal strip and pre-wired internal configuration minimize field labor and wiring errors.
• Integrated circuit breakers provide dedicated protection for each transformer output, preventing system-wide downtime.
• LED power indicators allow for instantaneous visual verification of secondary voltage presence.

• What is the primary application for this dual transformer unit? It is primarily used in HVAC control panels and building automation loops where multiple Class 2 power sources are required to drive various 24 Vac peripheral devices.
• Can I use this for both 50 Hz and 60 Hz systems? Yes, the Johnson Controls PSH100A100A is rated for 50/60 Hz operations, though ambient temperature derating should be considered for high-heat environments.
• Is the enclosure suitable for outdoor installation? No, this unit is intended for indoor use within a protected control cabinet or electrical room.

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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.