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2. Recreational vehicle terms - Wikipedia

   en.wikipedia.org/wiki/Recreational_vehicle_terms

   In recent years, specialized 12-volt-DC-operated compressor-type refrigerators have been developed and are being used in some RVs. The typical RV (absorption) refrigerator uses either propane or electricity as a heat source. Most operate on propane or AC (two-way), while some add 12 volts DC (three-way).

3. Solid-state relay - Wikipedia

   en.wikipedia.org/wiki/Solid-state_relay

   A solid state relay (SSR) is an electronic switching device that switches on or off when an external voltage (AC or DC) is applied across its control terminals. They serve the same function as an electromechanical relay , but solid-state electronics contain no moving parts and have a longer operational lifetime.

4. High-voltage interface relay - Wikipedia

   en.wikipedia.org/wiki/High-voltage_interface_relay

   High voltage interface relays, a.k.a., interface relays: [1] [2] or coupling relays or insulating interfaces [3] [4] is a special class of electrical relays designed to provide informational and electrical compatibility between functional components isolated from each other and not allowing for a direct connection due to a high difference of potentials.

5. Relay - Wikipedia

   en.wikipedia.org/wiki/Relay

   The National Association of Relay Manufacturers and its successor, the Relay and Switch Industry Association define 23 distinct electrical contact forms found in relays and switches. [17] Of these, the following are commonly encountered: SPST-NO (Single-Pole Single-Throw, Normally-Open) relays have a single Form A or make contact. These have ...

6. Protective relay - Wikipedia

   en.wikipedia.org/wiki/Protective_relay

   Electromechanical protective relays operate by either magnetic attraction, or magnetic induction. [9]: 14 Unlike switching type electromechanical relays with fixed and usually ill-defined operating voltage thresholds and operating times, protective relays have well-established, selectable, and adjustable time and current (or other operating parameter) operating characteristics.

7. Switched-mode power supply - Wikipedia

   en.wikipedia.org/wiki/Switched-mode_power_supply

   Stand-alone switched-mode power supply An adjustable switched-mode power supply for laboratory use. A switched-mode power supply (SMPS), also called switching-mode power supply, switch-mode power supply, switched power supply, or simply switcher, is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently.

8. Generator interlock kit - Wikipedia

   en.wikipedia.org/wiki/Generator_Interlock_Kit

   The kit achieves the same function by adding an external interlock onto an existing breaker panel that allows the main breaker to be turned on or one designated load breaker to be turned on, but not both at the same time. The interlocked load breaker is repurposed as the "backfeed" breaker, and a generator is connected to it (wired directly or ...

9. Time switch - Wikipedia

   en.wikipedia.org/wiki/Time_switch

   A time switch (also called a timer switch, or simply timer) is a device that operates an electric switch controlled by a timer. Intermatic introduced its first time switch in 1945, which was used for "electric signs, store window lighting, apartment hall lights, stokers, and oil and gas burners." A consumer version was added in 1952.