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FUNCTIONAL DEVICES INC / RIB PSH500A Enclosed Class 2 Transformer - Enclosed & Panel Mounted Class 2 Transformers
FUNCTIONAL DEVICES INC / RIBEnclosed & Panel Mounted Class 2 Transformers

FUNCTIONAL DEVICES INC / RIB PSH500A Enclosed Class 2 Transformer

The FUNCTIONAL DEVICES INC / RIB PSH500A is a wall-mounted, enclosed Class 2 power supply with a 500 VA power rating. It converts 120V AC input to 24V AC output and features screw terminal wiring connections. This…

SKU 3G-OTH-44574

Brand
FUNCTIONAL DEVICES INC / RIB
Item
PSH500A Enclosed Class 2 Transformer
Part Number
PSH500A
Category
Enclosed & Panel Mounted Class 2 Transformers
Available to Order
Also known as:PSH500AFUNCTIONAL DEVICES INC / RIB
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

FUNCTIONAL DEVICES INC / RIB
Manufacturer Part Number
PSH500A
Type
Circuit Breaker
AC
24V
Mounting
Wall
Input Voltage
120V AC
Output Voltage
24V AC
Wire Connection Type
Screw Terminals
Includes On/Off Switch
Individual Output On/Off Switch

Technical Documents

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FUNCTIONAL DEVICES INC / RIB Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The FUNCTIONAL DEVICES INC / RIB PSH500A is a wall-mounted, enclosed Class 2 power supply with a 500 VA power rating. It converts 120V AC input to 24V AC output and features screw terminal wiring connections. This unit includes an individual output on/off switch and a circuit breaker for overcurrent protection.

Frequently Asked Questions

What is the FUNCTIONAL DEVICES INC / RIB PSH500A used for?

The PSH500A is a wall-mounted Class 2 power supply that converts 120V AC input to 24V AC output at 500 VA. It is used to power low-voltage controls, relays, and automation devices in HVAC, lighting, and industrial systems, with circuit breaker protection and an individual output on/off switch.

What are the specifications of the FUNCTIONAL DEVICES INC / RIB PSH500A?

The PSH500A has a 500 VA power rating, 120V AC input, 24V AC output, screw terminal wiring, a circuit breaker for overcurrent protection, and an individual output on/off switch. It is wall-mounted and enclosed, with manufacturer part number PSH500A from FUNCTIONAL DEVICES INC / RIB.

Where to buy the FUNCTIONAL DEVICES INC / RIB PSH500A worldwide?

3G Electric supplies the FUNCTIONAL DEVICES INC / RIB PSH500A to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this Class 2 power supply.

How to install the FUNCTIONAL DEVICES INC / RIB PSH500A?

Mount the PSH500A securely to a wall using the provided enclosure. Connect 120V AC input and 24V AC output via screw terminals, ensuring proper wire gauge for 500 VA. Use the individual output on/off switch for local control. The circuit breaker resets after overcurrent trips.

Used in

Common applications for FUNCTIONAL DEVICES INC / RIB
HVAC control panels — Functional Devices RIB Class 2 transformers (e.g., PSH75AB10) provide 24V AC power for thermostats, relays, and zone valves.
Lighting contactor panels — RIB power supplies (e.g., PSMN200A) step down 347V AC to 24V AC for lighting control relays and occupancy sensors.
Pump control panels — Enclosed Class 2 transformers (e.g., PSH200A) supply 24V AC to pump start relays and float switches in water/wastewater facilities.
Industrial automation — RIB current sensors and relays monitor and switch low-voltage control circuits in PLC-based systems.
Commercial building automation — Functional Devices power supplies (e.g., PSH100AB10-EXT2) provide isolated 24V AC power for building controllers and actuators.
Data center cooling — RIB transformers (e.g., PSH300A) power control circuits for CRAC units and economizer dampers.
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FUNCTIONAL DEVICES INC / RIB Products

3G Electric supplies FUNCTIONAL DEVICES INC / RIB enclosed & panel mounted class 2 transformers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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