panic exit lx rx lc qel

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The attached table shows the part numbers for LX-RX and LX-RX-LC switches field installed.
The QEL conversion kit (3' or 4') and the RX switch kit (050251-00) can convert the 9927 to QEL-RX9927 device.
PN33/35/98/99 Pneumatic exit devices are not usually used with RX or LX switches since the Pneumatic PN device is used instead EL to eliminate the electric from the device.
Here is detailed information on why the Von Duprin RX-LC Swtich is required by the AD300 and AD400 993 units.   A low current switch is needed because … -     &nb...
The RX-LC and LX-LC (Low Current) switches are used for current up to 0.05 amps at 24 VDC and the standard RX and LX switches are used for current greater than 0.05 amps up to 0.5 amps at 24 VDC.
SD option is available and is also standard with Von Duprin 98/99 rim and vertical rod exit devices but not available with mortise device.