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FUNCTIONAL DEVICES INC / RIB TR50VA004 Open Class 2 Transformer - Open Class 2 Transformers
FUNCTIONAL DEVICES INC / RIBOpen Class 2 Transformers

FUNCTIONAL DEVICES INC / RIB TR50VA004 Open Class 2 Transformer

The FUNCTIONAL DEVICES INC / RIB Class 2 Transformer is an open-style transformer with a 50 VA power rating. It features a foot mounting configuration, 120V AC input, and 24V AC output, with wire lead connections for…

SKU 3G-OTH-47893

Brand
FUNCTIONAL DEVICES INC / RIB
Item
TR50VA004 Open Class 2 Transformer
Part Number
TR50VA004
Category
Open Class 2 Transformers
Available to Order
Also known as:TR50VA004FUNCTIONAL 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
TR50VA004
Type
Circuit Breaker
AC
24V
Mounting
Foot
Input Voltage
120V AC
Output Voltage
24V AC
Connection - Primary
Wire Lead
Connection - Secondary
Wire Lead

Technical Documents

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

Product Description

The FUNCTIONAL DEVICES INC / RIB Class 2 Transformer is an open-style transformer with a 50 VA power rating. It features a foot mounting configuration, 120V AC input, and 24V AC output, with wire lead connections for both primary and secondary sides. This unit includes a circuit breaker for protection.

Frequently Asked Questions

What is the FUNCTIONAL DEVICES INC / RIB Class 2 Transformer used for?

This open-style Class 2 transformer supplies 24V AC power from a 120V AC input, typically for HVAC controls, relays, and building automation systems. Its 50 VA rating and built-in circuit breaker protect downstream devices, making it suitable for commercial and industrial control panels.

What are the specifications of the RIB TR50VA004 transformer?

The RIB TR50VA004 is a 50 VA open Class 2 transformer with 120V AC input and 24V AC output. It features foot mounting, wire lead connections on both primary and secondary sides, and an integrated circuit breaker for overcurrent protection. The manufacturer part number is TR50VA004.

Where to buy the FUNCTIONAL DEVICES INC / RIB TR50VA004 worldwide?

3G Electric supplies the RIB TR50VA004 Class 2 transformer worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver this model to any country.

How to install the RIB Class 2 transformer TR50VA004?

Mount the transformer securely using its foot bracket. Connect the 120V AC primary wires to the supply and the 24V AC secondary wires to the load, observing polarity if required. Ensure the circuit breaker is not tripped before energizing. 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 open 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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Open-style Class 2 transformer with foot mounting, converting 208V AC primary to 24V AC secondary. Rated 96 VA with wire lead connections on both sides. Includes a circuit breaker for overcurrent protection. Suitable for supplying control power in HVAC, lighting control, and industrial automation systems
FUNCTIONAL DEVICES INC / RIB
Open-style Class 2 transformer with foot mounting, converting 208V AC primary to 24V AC secondary. Rated 96 VA with wire lead connections on both sides. Includes a circuit breaker for overcurrent protection. Suitable for supplying control power in HVAC, lighting control, and industrial automation systems
Open-style Class 2 transformer with 50 VA rating, converting 120V AC input to 24V AC output. Features foot mounting, wire lead connections on primary and secondary sides, and an integrated circuit breaker for overload protection. Suitable for powering low-voltage control circuits in HVAC, lighting, and industrial control panels
FUNCTIONAL DEVICES INC / RIB
Open-style Class 2 transformer with 50 VA rating, converting 120V AC input to 24V AC output. Features foot mounting, wire lead connections on primary and secondary sides, and an integrated circuit breaker for overload protection. Suitable for powering low-voltage control circuits in HVAC, lighting, and industrial control panels

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