FUNCTIONAL DEVICES INC / RIB Class 2 Transformer: 40 VA Power Rating, 24V AC
The FUNCTIONAL DEVICES INC / RIB Class 2 Transformer (SKU 2ETD8, MPN TR40VA004) is an open Class 2 transformer with a 40 VA power rating. It features a foot mounting style, a 277V AC input voltage, and a 24V AC…
SKU 3G-OTH-47092
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Product Description
The FUNCTIONAL DEVICES INC / RIB Class 2 Transformer (SKU 2ETD8, MPN TR40VA004) is an open Class 2 transformer with a 40 VA power rating. It features a foot mounting style, a 277V AC input voltage, and a 24V AC output voltage, with wire lead connections for both primary and secondary sides.
Frequently Asked Questions
What is the FUNCTIONAL DEVICES INC / RIB TR40VA004 transformer used for?
This open Class 2 transformer supplies 24V AC power to control circuits, relays, and automation devices in commercial HVAC, lighting, and industrial control panels. Its 40 VA rating and foot-mount design suit permanent installations where a low-voltage power source is needed from a 277V AC line.
What are the specifications of the FUNCTIONAL DEVICES INC / RIB TR40VA004 transformer?
The TR40VA004 is a 40 VA open Class 2 transformer with a 277V AC input and 24V AC output. It has wire lead connections on both primary and secondary sides and a foot-mounting style. The manufacturer part number is TR40VA004, and it is inherently limited per Class 2 requirements.
Where to buy the FUNCTIONAL DEVICES INC / RIB TR40VA004 transformer worldwide?
3G Electric supplies the FUNCTIONAL DEVICES INC / RIB TR40VA004 transformer to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and a quote tailored to your location and project needs.
How to install the FUNCTIONAL DEVICES INC / RIB TR40VA004 transformer?
Mount the transformer securely using its foot bracket on a flat surface. Connect the 277V AC primary wires to the line supply and the 24V AC secondary wires to the load. Ensure all connections are tight and follow local electrical codes. The unit is inherently limited, so no external fuse is required on the secondary.
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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.















