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, Co�nponent Description <br /> B-2.1.o Pr"i'�L"xiO.�+vJiT'iL'TrI �IT, 'g{1`i ,�12�E23'8', .z312�^,O.'y�-�Q)Z iF�^,P. J�H) <br /> The Microswitch Kit is a single pole, double-throw switch (see Figure 2-21 and Table 2-7). Included <br /> in the kit is the microswitch, pigtail assembly and four mounting screws (two short and two long). <br /> Note: Microswitch Kit P/N B 120039-501 includes pigtail assembly with white stripes. <br /> The wire leads are 24-inches (610 mm) in length. Four Microswitch Kits can be mounted in the UCH <br /> Control System. There are two mounting locations to accommodate the four Microswitch kits (two <br /> stacked at each mounting location), with EMT ports for each mounting location. This allows for the <br /> use of two electrical junction boxes for separation of signal lines and AC lines. <br /> These are used when it is necessary to open or close electrical circuits. The following are examples, <br /> but not limited to: <br /> • Electric appliance shutdown <br /> • Make up air shutdown <br /> • Electric gas valve shutidown <br /> • Shuntbreaker/relay <br /> Note: Not for alarm initiation. <br /> Electrical appliances usually have a higher amp rating than the switehes.In this case, such appliances <br /> shall not be wired directly to the microswitch. A magnetic contactor or relay must be used. <br /> To wire the microswitch for UCH, refer to Figure 4-30. <br /> ELECTRICAL CONNECTOR <br /> �-_��� _� � <br /> I ro <br /> �� ' <br /> C, COM NO <br /> MICROSWITCH�� -- <br /> Figure 2-21. Microswitch Kit, P/N B 120039 <br /> Tablc 2-7. Microswitch Electrical Ratings <br /> 125/250 Uac 20.5 Amps <br /> 250 Uac 1-1/2 HP <br /> 125 Uac 1/2 HP <br /> t +a.-� t �1 <br /> April 2009 2-18 P/N 60-9127100-000 <br />