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FUNCTIONAL DEVICES INC / RIB PSH300A Class 2 Transformer - Enclosed & Panel Mounted Class 2 Transformers
FUNCTIONAL DEVICES INC / RIBEnclosed & Panel Mounted Class 2 Transformers

FUNCTIONAL DEVICES INC / RIB PSH300A Class 2 Transformer

The FUNCTIONAL DEVICES INC / RIB PSH300A is a wall-mounted, enclosed Class 2 power supply with a 300 VA power rating. It converts 120V AC input to 24V AC output and features screw terminals for wiring, an individual…

SKU 3G-OTH-44792

Brand
FUNCTIONAL DEVICES INC / RIB
Item
PSH300A Class 2 Transformer
Part Number
PSH300A
Category
Enclosed & Panel Mounted Class 2 Transformers
Available to Order
Also known as:PSH300AFUNCTIONAL DEVICES INC / RIB
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

FUNCTIONAL DEVICES INC / RIB
Manufacturer Part Number
PSH300A
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 PSH300A is a wall-mounted, enclosed Class 2 power supply with a 300 VA power rating. It converts 120V AC input to 24V AC output and features screw terminals for wiring, an individual output on/off switch, and a circuit breaker.

Frequently Asked Questions

What is the FUNCTIONAL DEVICES INC / RIB PSH300A used for?

The PSH300A is a wall-mounted Class 2 power supply that converts 120V AC input to 24V AC output with a 300 VA rating. It is used to power low-voltage control circuits, relays, and automation equipment in commercial HVAC, lighting, and industrial control panels.

What are the specifications of the FUNCTIONAL DEVICES INC / RIB PSH300A?

The PSH300A has a 300 VA power rating, 120V AC input, 24V AC output, screw terminals for wiring, an individual output on/off switch, and a built-in circuit breaker. It is wall-mounted and enclosed, manufactured by FUNCTIONAL DEVICES INC / RIB under MPN PSH300A.

Where to buy the FUNCTIONAL DEVICES INC / RIB PSH300A worldwide?

3G Electric supplies the FUNCTIONAL DEVICES INC / RIB PSH300A worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.

How to install the FUNCTIONAL DEVICES INC / RIB PSH300A?

Mount the PSH300A securely on a wall using the provided enclosure. Connect 120V AC input and 24V AC output via screw terminals. Ensure the circuit breaker and on/off switch are accessible. Follow local electrical codes and the manufacturer's manual for safe installation.

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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Enclosed wall-mount Class 2 transformer converting 120V AC input to 24V AC output. Rated 75 VA with screw terminal connections. Includes individual output on/off switch and built-in circuit breaker for overcurrent protection. Suitable for powering low-voltage control circuits in HVAC, lighting, and building automation systems
FUNCTIONAL DEVICES INC / RIB
Enclosed wall-mount Class 2 transformer converting 120V AC input to 24V AC output. Rated 75 VA with screw terminal connections. Includes individual output on/off switch and built-in circuit breaker for overcurrent protection. Suitable for powering low-voltage control circuits in HVAC, lighting, and building automation systems
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FUNCTIONAL DEVICES INC / RIB
Enclosed Class 2 transformer with 100 VA rating, 120V AC input and 24V AC output. Features screw terminal connections and an individual output on/off switch. Wall-mountable design for use in control panels, relays, and other low-voltage equipment

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