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FUNCTIONAL DEVICES INC / RIB Class 2 Transformer: 40 VA Power Rating - Open Class 2 Transformers
FUNCTIONAL DEVICES INC / RIBOpen Class 2 Transformers

FUNCTIONAL DEVICES INC / RIB Class 2 Transformer: 40 VA Power Rating

The FUNCTIONAL DEVICES INC / RIB TR40VA040 is an open Class 2 transformer with a 40 VA power rating. It features a hub mounting style, 120V AC input, and 24V AC output, with wire lead connections for both primary and…

SKU 3G-OTH-46993

Brand
FUNCTIONAL DEVICES INC / RIB
Item
Class 2 Transformer: 40 VA Power Rating
Category
Open Class 2 Transformers
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Technical Specifications

FUNCTIONAL DEVICES INC / RIB
Manufacturer Part Number
TR40VA040
Mounting
Hub
Input Voltage
120V AC
Output Voltage
24V AC
AC/208V AC/240V AC
120V
Connection - Primary
Wire Lead
Connection - Secondary
Wire Lead
View Full Spec Sheet

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

Product Description

The FUNCTIONAL DEVICES INC / RIB TR40VA040 is an open Class 2 transformer with a 40 VA power rating. It features a hub mounting style, 120V AC input, and 24V AC output, with wire lead connections for both primary and secondary sides.

Frequently Asked Questions

What is the FUNCTIONAL DEVICES INC / RIB TR40VA040 transformer used for?

The TR40VA040 is an open Class 2 transformer used to step down line voltage (120V AC, 208V AC, or 240V AC) to 24V AC for powering control circuits, relays, and automation devices in HVAC, lighting, and industrial control panels.

What are the specifications of the FUNCTIONAL DEVICES INC / RIB TR40VA040?

This FUNCTIONAL DEVICES INC / RIB transformer has a 40 VA power rating, 120V AC input, 24V AC output, hub mounting, and wire lead connections on both primary and secondary sides. It accepts 120V AC, 208V AC, or 240V AC input.

Where to buy the FUNCTIONAL DEVICES INC / RIB TR40VA040 worldwide?

3G Electric supplies the FUNCTIONAL DEVICES INC / RIB TR40VA040 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this open Class 2 transformer.

How to install the FUNCTIONAL DEVICES INC / RIB TR40VA040 transformer?

Mount the TR40VA040 securely using the hub mounting feature. Connect primary wire leads to a 120V AC, 208V AC, or 240V AC source, and secondary leads to the 24V AC control circuit. Follow local electrical codes and ensure the load does not exceed 40 VA.

Used in

Common applications for FUNCTIONAL DEVICES INC / RIB
HVAC control systems — Functional Devices Inc. / RIB PSH series transformers provide 24V AC power for thermostats and damper actuators.
Burner management — Functional Devices Inc. / RIB TR50VA022US transformer supplies low-voltage power for flame safeguard controllers.
Pump control panels — Functional Devices Inc. / RIB PSH500A-LVC power supply delivers 24V AC for relay logic in pump sequencing.
Lighting control — Functional Devices Inc. / RIB SIB04S rocker switch enables manual override of relay-controlled lighting circuits.
Industrial automation — Functional Devices Inc. / RIB PSH300A transformer powers 24V AC sensors and PLC input modules.
Gas valve actuation — Functional Devices Inc. / RIB enclosed transformers provide isolated 24V AC for solenoid valves in gas trains.

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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