Switch Products - Alstom

Model 5H Dual Control Switch Machinewith Biased-Neutral ControllerSwitch Productsfeatures> Point DetectorAn over-and-locked type circuit controllerwith two normal, two reverse, two shuntand two motor-control contacts. The normaland reverse contacts check and indicatewhen the switch points are within theproper distance of the stock rail and arelocked. The motor control contacts controlthe motor operating circuit in conjunctionwith the biased-neutral controller.> Biased-Neutral ControllerThe machine has two biased neutral,mechanically interlocked contactors,a blocking rectifier and an overload relay.Each contactor has one dependent, frontbackcontact with a permanent magnetblowout (arc suppression). A snubbingcontact provides dynamic motor braking atthe end of the stroke. The magneticstructure prohibits armature operationuntil voltage of the proper polarity is appliedacross the coils.> HeatersProvided in the motor, controller and pointdetector compartments.Model 5H Switch Machine installed at customer location> Removable Hand CrankAvailable for maintenance and emergency use.An automatic cut-out contact, with a latch-outfeature and manual reset, protects the operator.> Overload Friction ClutchAbsorbs shocks encountered in switchoperation. It is factory adjusted to slipwhen the motor operating current is from12–14 Ampere for 110 Volt machines, and18–20 Ampere for 24 Volt machines.> Rugged MotorProvides long, reliable service. It has series,split connected, epoxy-coated, insulatedfield coils and an epoxy-coated armature.Dynamic snubbing limits motor overrun atthe end of the stroke, and a simplemagnetic detent holding device then locksthe motor armature. Magnetic holding isfrictionless and virtually maintenance-free.> Dual Control MechanismPermits either power or hand-throw operation.©2011 Alstom Signaling Inc. www.alstomsignalingsolutions.com 101