BISS: Transformer 40VA, 277/240/208/120-24V,2 hub,Class 2 UL List US/Can,Inherent Lim - Functional Devices (RIB)

BISS: Transformer, 40 Va, 120-240V - Functional Devices (RIB)

BISS: Transformer 40VA, 120/208/240-24V Class 2 UL Listed 1N+Foot w/ Plate - Functional Devices (RIB)

Home Improvement: Transformer, Control, Input 120, Output 24 - RIB

BISS: Transformer, 40 Va, 208-480V - Functional Devices (RIB)

BISS: Transformer 40VA, 120-24V, single hub, Class 2 UL Listed US/Canada,Inherent Lim - Functional Devices (RIB)

BISS: Functional Devices (RIB) TR40VA022 Transformer 40VA, 120-24V Class 2 UL Listed 2N+FOO - Functional Devices (RIB)

BISS: Transformer, 40 Va, 2.8 In H - Functional Devices (RIB)

BISS: Transformer 40VA, 24-24V, single hub, Class 2 UL Listed US/Canada,Inherent Lim. - Functional Devices (RIB)

BISS: Functional Devices (RIB) PSH40ANWB10 Enc 40VA 120 to 24Vac UL class 2 pwr supp sec wires 10A main breaker no outlets - Functional Devices (RIB)

Home Improvement: Transformer, 1 Hub, 120V In, 24V Out, 40VA - RIB

BISS: Transformer, 2 Hub, 120V In, 24V Out, 40VA - Functional Devices (Rib)

Home Improvement: Transformer, Input 240/208/120, Output 24 - Functional Devices Inc / Rib

BISS: Rib Relays Product TR40VA013 - Rib Relays

Home Improvement: Transformer, Input 277/240/208/120, Out 24 - RIB

Home Improvement: Transformer, Control, Input 24, Output 24, - Functional Devices Inc / Rib

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Rib 40 Va Transformer Popular Q&A

Q: What does 40VA mean when is descrobes a plug-in transformer? Elec...
A: This is the power rating of the transformer. At 20 Volts it is using 2 Amps or 40VA(20*2). It is using AC voltage, so the units are VA or volt-amps. In DC volta... Read More »

Q: If a typical class 2 transformer is rated at 40 va.what is its tr...
A: Lots of people don't understand this rating, but it is not that difficult. The power rating of a transformer is limited by the losses in the transformer; these ... Read More »

Q: A 40 VA transformer is used on a control circuit to provide 24 vo...
A: First remove all load from the secondary terminals and read the open circuit voltage of the transformer. Is it 24 volts? If not you may have some shorted windin... Read More »

Q: What does 40VA rating for transformer mean?
A: Transformers inherently handle only AC. Unless your tranformer is just plain broken (probably not), it is putting out somewhere around 12V AC as specified. If y... Read More »

Q: Can a 50 VA transformer replace a 40 VA transformer in a heat pum...
A: A 50 VA (volt-ampere) transformer can replace a 40 VA transformer in a heat pump. The new transformer can yield a maximum of 50 VA; however, it will only supply... Read More »