Silent Knight SD505-6RB Base 19/02 and can function as either

and can function as either a control relay or polarity reversal relay

The exception i s the small lobby enclosure 3-CAB5

Wolverine X4 SE 2018-2019

two D2300CPS or two D2325CPS modules in any FireFinder XLS CAB enclosure

Silent Knight SD505-6RB Base 19/02 and can function as eitherThe SD505 6RB is a 6" plug in detector relay base with a built in form C relay for control of auxiliary functions such as elevator recall and door closure. One form C contact relay Support for Class A (Style 6) and Class B (Style 4) wiring Attaches underneath 6" detector base SD505 6AB for quick installation UL listed Datasheet: SD505 6RB Double check availability at the chat: Click here