UL
Models
ULClCanadian
Models
WFD20
WFD25
WFD3O-2
WFD35
WFD4O
WFD5O
WFD6O
WFDSO
WFD2OA
WFD25A
WFD30,2A
WFD35A
WFD4OA
WFD5OA
WFD6OA
WFDSOA
ReolacementParts
A3008-00
A77.OI.O2
5467000
WFDW
WFDN4
Retardl\4echanism
TerminalBlock
CoverTamperSwitchKit
CoverWrench
Replacement gasketkit
PloductOverview
NewWFD30.2modelsinstall in2"
holesizes
ULmodelsareNEMA4 rated
Sealedletardmechanismassutesthat
the retard is not cortaminated bydust
anddi when the coYeris removed
Visualswitch activationpermits
installerto accuratelyset retardunder
noisyconditions
Rugged,dualSPDTswitchesare
enclosedin a durabletermlnal block
Accommodatesup to 12 AWGwire
1OO% synchronizationactivates
bothalarmpaneland local bell
simultaneously
SystemSensor'sWFDseries is compatiblewith schedule10 through40 steel pipe,
sizes2" through8", andcanbemountedin a ve{ical or hollzontalposition.
RobustConstruction. The I(FD seriesconsistsof a rugged, NEMA 4 rated
enclosure.Designed for both indoor and outdoor use, theWID seriesoperates
acrossa wide temperature range, from 32'F to 120"F.
RellablePeriolmance. UL listedmodels are equippedwith tamper resisranr
cover screws to prevent unauthorized entry. Inside, rwo setsof SPDT (Form C)
synchronized switchesareenclosed in a durable terminal block to assure
reliable performance.
FalseAlarm lmmunity. TheWFD seriesincorporates amechanical retard fea-
ture, which minimizes the risk of falsealarm due to pressuresurgesor air
trapped in the sprinkler system. In addition, the mechanical retardt unique
sealeddesign is immune to dust and other contaminants.
SimplifiedOperation. The WFD seriesis designedto simplify installation. Two
- conduit openingspermit easyattachment to the local alarm system.The retard
mechanism and dual SPDT switchesare field-replaceable.
MEA
@ @ @
TISTEII
approved
