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2. Generator interlock kit - Wikipedia

   en.wikipedia.org/wiki/Generator_Interlock_Kit

   Early generator interlock kits consisted of two sliding steel or plastic (depending on the brand) plates held together by three bolts and installed on the front cover of the home's breaker panel, however, some models made by Eaton (formerly Cutler-Hammer) and Siemens for panels manufactured by them install on the adjacent circuit breakers themselves and consist of a sliding arm for breakers ...

3. Electrical equipment in hazardous areas - Wikipedia

   en.wikipedia.org/wiki/Electrical_equipment_in...

   IEC/EN 60079-2 Zone 1 (px or py), or zone 2 (pz) Analysers, motors, control boxes, computers Intrinsically safe: i Any arcs or sparks in this equipment has insufficient energy (heat) to ignite a vapour. Equipment can be installed in ANY housing provided to IP54. A 'Zener Barrier', opto-isolator or galvanic unit may be used to assist with ...

4. Transfer switch - Wikipedia

   en.wikipedia.org/wiki/Transfer_switch

   Simplified single line diagram of a single-phase transfer switch to select either 'city' (utility) power or local generator power 3-phase Intelligent transfer switch. A transfer switch is an electrical switch that switches a load between two sources. Some transfer switches are manual, in that an operator effects the transfer by throwing a ...

5. Switch - Wikipedia

   en.wikipedia.org/wiki/Switch

   A toggle DIP switch with four inputs and outputs Bank of toggle switches on a Data General Nova minicomputer front panel Toggle switches with the shared cover preventing certain forbidden combinations. A toggle switch or tumbler switch is a class of electrical switches that are manually actuated by a mechanical lever, handle, or rocking mechanism.

6. Zone valve - Wikipedia

   en.wikipedia.org/wiki/Zone_valve

   For vacuum- or pneumatically operated zone valves, the thermostat usually switches the pressure or vacuum on or off, causing a spring-loaded rubber diaphragm or ball valve to move and actuate the valve. [2] Unlike the switch-monitored electrical zone valves, these valves automatically return to the default position without the application of ...

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