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<br />ANSUL3
<br />
<br />Detection and Control Components
<br />
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<br />
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<br />
<br />Key Maintenance Switch
<br />
<br />Features
<br />
<br />. Stackable, screw-terminal, contact blocks
<br />
<br />. Compatible with AUTOPULSE@ control units
<br />
<br />. Surface-mount assemblies listed by Underwriters
<br />Laboratories, Inc.
<br />
<br />. Components mounted on stainless steel switch plate
<br />
<br />Applications
<br />
<br />The Key Maintenance Switch is used to interrupt the release
<br />circuit signal to the fire suppression system. It is key-operat-
<br />ed to allow authorized personnel to deactivate the release
<br />circuit during service or maintenance. An indicator lamp,
<br />located on the switch plate. will light when the switch is in the
<br />"Iock-our mode to serve as a reminder that the release cir-
<br />cuit has been disconnected.
<br />
<br />Description
<br />
<br />The Key Maintenance Switch assembly consists of a key-
<br />operated switch, 24 VDC indicator lamp. normally-open con-
<br />tact block, normally-closed contact block, and stainless steel
<br />switch plate with silk-screened label. Surface-mount assem-
<br />blies include a double-gang weather-proof box and gasket.
<br />
<br />The stackable, screw-terminal contact blocks are rated for 28
<br />VDC @ 1.1 amp make/break or 6 amp continuous carry.
<br />
<br />Listings and Approvals
<br />
<br />The switch is UL listed when installed in the surface-mount
<br />box (with gasket) that is provided with the surface-mount
<br />assembly.
<br />
<br />MOUNTING DIMENSIONS
<br />
<br />14
<br />
<br />411/16 IN,
<br />(119mm)
<br />
<br />SURFACE-MOUNT
<br />I 3 1/8 IN,
<br />-(79mm)
<br />
<br />a I
<br />
<br />1
<br />
<br />o
<br />
<br />o
<br />
<br />NORMAL
<br />
<br />(@==o
<br />
<br />45/81N,
<br />(l17mm)
<br />
<br />
<br />j
<br />
<br />ANBUL
<br />FIRE SUPPRESSION SYSTEM ABORT
<br />o 0
<br />
<br />ANSUL and AUTOPULSE are 1rademar1<s of Ansullnmrporated or lis aIIIlia1es.
<br />
<br />TYPICAL WIRING DIAGRAM
<br />
<br />
<br />24 VDC
<br />ACTUATOR
<br />
<br />KEY-QPERATED CONTROL UNIT
<br />LOCK-QUT SWITCH RELEASE CIRCUIT
<br />
<br />r----:l TERMINALS.0;---
<br />
<br />H
<br />
<br />I
<br />I
<br />I
<br />I
<br />I
<br />L___
<br />
<br />N.O,
<br />
<br />
<br />(+)
<br />
<br />I
<br />I F'Ol.AR1TY IS
<br />SHOWN
<br />I INALARM
<br />LC~~~ _
<br />
<br />24VDC
<br />INDICATOR LAMP
<br />
<br />. SEE CONTROL UNIT MANUAL FOR SPECIFIC WIRING REQUIREMENTS,
<br />
<br />Ordering Information
<br />
<br />Part No. Description
<br />
<br />76498
<br />76499
<br />76485
<br />76486
<br />78179
<br />· 470273
<br />
<br />
<br />
<br />ANSUL INCORPORATED. ONE STANTCJ\I STREET. MARINETTE. WI 54143.2542 715-735-7411
<br />
<br />Maintenance Switch, Surface-Mount
<br />Maintenance Switch, Flush-Mount
<br />Extra Contact Block, N.C.
<br />Extra Contact Block, N.O.
<br />Spare Key
<br />Extender-Back Box
<br />
<br />FLUSH-MOUNT
<br />2314 IN.
<br />-(70mm)-
<br />
<br />
<br />Shipping
<br />Weight
<br />lb. (kg)
<br />2.0 (0.9)
<br />2.0 (0.9)
<br />0.25 (0.11)
<br />0.25 (0.11)
<br />0.25 (0.11)
<br />0.25 (0.11)
<br />
<br />Form No, F.95110-1 ",,2003Ansullncorporalad litho In U,S.A,
<br />
<br />3-33
<br />
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