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

FUNCTIONAL DEVICES INC / RIB Panel Mounted Class 2 Transformer

The FUNCTIONAL DEVICES INC / RIB PSMN300A is a panel-mounted, enclosed Class 2 power supply with a 300 VA power rating. It converts 240V AC input to 24V AC output and features screw terminals for wiring, plus an…

SKU 3G-OTH-44603

Brand
FUNCTIONAL DEVICES INC / RIB
Item
Panel Mounted Class 2 Transformer
Part Number
PSMN300A
Category
Enclosed & Panel Mounted Class 2 Transformers
Available to Order
Also known as:PSMN300AFUNCTIONAL 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
PSMN300A
Type
Circuit Breaker
AC
24V
Mounting
Panel
Input Voltage
240V AC
Output Voltage
24V AC
Wire Connection Type
Screw Terminals
Includes On/Off Switch
Individual Output On/Off Switch

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

Product Description

The FUNCTIONAL DEVICES INC / RIB PSMN300A is a panel-mounted, enclosed Class 2 power supply with a 300 VA power rating. It converts 240V AC input to 24V AC output and features screw terminals for wiring, plus an individual output on/off switch and a circuit breaker.

Frequently Asked Questions

What is the FUNCTIONAL DEVICES INC / RIB PSMN300A used for?

The PSMN300A is a Class 2 power supply that converts 240V AC input to 24V AC output for industrial control panels, HVAC systems, and automation equipment. It provides 300 VA power with circuit breaker protection and an individual output on/off switch, making it suitable for powering relays, controllers, and sensors.

What are the specifications of the FUNCTIONAL DEVICES INC / RIB PSMN300A?

The PSMN300A has a 300 VA power rating, 240V AC input, and 24V AC output. It is panel-mounted, includes an individual output on/off switch, a circuit breaker, and screw terminals for wiring. The manufacturer part number is PSMN300A, and it is an enclosed Class 2 transformer from FUNCTIONAL DEVICES INC / RIB.

Where to buy the FUNCTIONAL DEVICES INC / RIB PSMN300A worldwide?

3G Electric supplies the FUNCTIONAL DEVICES INC / RIB PSMN300A 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; we source and deliver this Class 2 power supply to any country.

How to install the FUNCTIONAL DEVICES INC / RIB PSMN300A?

Mount the PSMN300A on a panel using the provided hardware. Connect 240V AC input and 24V AC output via screw terminals, ensuring proper torque. Use the individual output on/off switch for local control. The circuit breaker protects against overloads. Follow local electrical codes and the manufacturer's instructions 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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