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The push button switch, also known as the control button, is a low-voltage electrical appliance that is manually and generally automatically reset. The button is usually used to issue a start or stop command in the circuit to control the on and off of the electrical coil current of the electromagnetic starter, contactor, relay, and the like.

The push button switch is a kind of electric device that is used to switch on and off the small current circuit when the action is released. Generally used in control circuits with AC and DC voltages below 440V and currents less than 5A.

Key Switches R2991

• Contact Resistance：50mΩ Max.Initial

• Insulation Resistance：10GΩ Min.@1000VDC

• Dielectric Strength：500VAC for 1 minute

• Operation Temperation：-40℃ to 95℃

• Storage Temperature：-40℃ to 95℃

• Electrical Rating：30mA@28VDC

• Electrical Life：20,000 cycles

• Full Travel：2.0mm

• Contact Arrangement：SPST,SPDT

• Actuation Force：ST:490 grams

• DT 1st Position：600 grams

• DT 2nd position：1150 grams

Part Number	Contact Resistance	Insulation Resistance	Dielectric Strength	Operation Temp.	Storage Temp.	Electrical Life	Full Travel	Contact Arrangement	Download
R2991-1	50mΩ Max.Initial	10GΩ Min.@1000VDC	500VAC for 1 minute	-40℃ to 95℃	-40℃ to 95℃	20,000 cycles	2.0mm	SPST,SPDT	NULL
R2991-2	50mΩ Max.Initial	10GΩ Min.@1000VDC	500VAC for 1 minute	-40℃ to 95℃	-40℃ to 95℃	20,000 cycles	2.0mm	SPST,SPDT	NULL

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