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“ what does double pole double throw mean? ”

Resolution: The following list explains the differences between the Von Duprin 47 and 48 latch assemblies.The 47 top latche has 5/8" throw latchbolt.The 48 top latch had 3/4" throw latchbolt for devices shippe...:

What is the projection or throw of the standard latch for a Falcon T series lock?

Resolution: The standard latch projection is 1/2". Falcon also offers a 3/4" throw with a 2-3/4" backset.:

What type of switch is used for the RX and latch monitoring options for the ND and L locks?

Resolution: The ND-Series RX, the L-Series RX and latch monitoring switches are Form C - Single Pole Double Throw (also known as SPDT).:

What is the DPDT for the 672/692?

Resolution: DPDT is double contacts push bar monitor switch. Double Pole Double Throw:

Can I set up the CT5000 to remotely unlock a door?

Resolution: When the switch changes state (e.g., from open to closed), the CT5000 will change the state of the Strike relay.:

Fire Rating for AD and CO locks

Resolution: The AD and CO locks both have a 3 hour fire door rating. Please see URL for more info. UL Fire Rating List:

When ordering the ND lock less cylinder will it come with a tailpiece?

Resolution: The Schlage ND is shipped with a driver/tailpiece when ordered with a LD, BD, or JD suffix.:

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“ what does double pole double throw mean? ”

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