HOME » PRODUCTS » FIRE PRODUCTS » SUPERVISORY SWITCHS
SUPERVISORY SWITCHS

UL/FM Supervisory Switch

GENERAL INFORMATION

The manufactured by Potter Electric Signal Company LLC OSYSU is used to monitor the open position of an OS&Y (outside screw and yoke) type gate valve.  This device is available in two models; the OSYSU-1, containing one set of SPDT (Form C) contacts and the OSYSU-2, containing two sets of SDPT (Form C) contacts.  These switches mount conveniently to most OS&Y valves ranging in size from 2" to 12" (50mm to 300mm).  They will mount on some valves as small as 1/2" (12,5mm).

The cover is held in place by two tamper resistant screws that require a special tool to remove.  The is furnished with each device.

 


- Fig OSYSU-1/OSYSU-2 data sheet (click to view)

  

CONTACT NOW
  • DIMENSIONS
  • MATERIALS SPECIFICAITON
  • INQUIRY

Online Inquiry

Please feel free to give your inquiry in the form below.We will reply you in 24 hours.