What is a Class 2 plug in transformer?
This series of transformers have built-in thermal protection and are UL-Recognized, Class 2. They are used in a wide range of applications in CCTV, access, and security systems – supplying low-voltage AC, or as part of a DC power system.
What is 24VAC power supply?
The 24VAC is used primarily for two purposes. The first is control, such as in door bells, and thermostats. The other is to supply operating power, such as in irrigation valves, rotation encoders, low voltage lighting systems and CCTV cameras.
What is a 24VAC transformer?
A 24 VAC (volt alternating current) transformer is a step-down type of transformer. The device typically converts 120 VAC to a lower voltage for use in push buttons. The 24 VAC transformer is also employed in many thermostats for home heating, ventilation and air-conditioning systems.
What voltage is a Class 2 transformer?
Class 2 transformers: Maximum 30Vrms, (42.4V peak), maximum power is 100VA. Class 3 transformer Inherently Limited: Greater than 30V but less than 100V. Class 3 Non-Inherently Limited transformer maximum voltage is 150V.
What is a Class 2 power supply used for?
Class 2 is a classification referring to the NEC – National Electric Code. To avoid potential cable overheating due to excessive currents and electric shock, the output of the power supply is limited to 60VDC or 100VA, (100W when used with an AC-DC power supply).
Is a thermostat 24V AC or DC?
Yes you are absolutely correct, typical Heating and Cooling thermostats operate at 24 volts AC. If we said DC somewhere that was a mistake. We do make a distinction between line voltage which is 120 V AC and the thermostat which powered voltage reduced by a Transformer to 24 V AC.
What is the difference between a Class 1 and Class 2 power supply?
UL Class 2 drivers comply with standard UL1310, meaning output is considered safe to contact and no major safety protection is required at the LED/luminaire level. There is no risk of fire or electric shock. A Class 1 driver can accommodate more LEDs, making it more efficient than a Class 2 driver.