- Lids
- Bottoms
- Compactor Parts
- Commercial Dumpster Parts
- Roll-Off Container Parts
- Refuse Body Truck/Roll-off Hoist Parts
- Lids
- Bottoms
- Compactor Parts
- Commercial Dumpster Parts
- Roll-Off Container Parts
- Refuse Body Truck/Roll-off Hoist Parts
- Lids
- Bottoms
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Compactor Parts
Power UnitsElectrical PartsLimit/Safety/Photo/Press. SwitchesButtons/Switches/Keys/LegendsHydraulic PartsCylinders30 MMPanels And ControlsMotorsMotor Starters / Transformers / FusesAccessories Electrical30 MM Key Switch30 MM Selector Switch30 MM Push Only Switch30 MM Legends30 MM Contact Blocks30 MM Replacement Keys22.5 MMMarathon CylindersWQ-Galbreath CylindersPTR cylindersJV Cram-A-Lot CylindersOther MFG CylindersCylinder AccessoriesOther Compactor Parts
- Commercial Dumpster Parts
- Roll-Off Container Parts
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Refuse Body Truck/Roll-off Hoist Parts
Heil Replacement PartsMcNeilus Replacement PartsTarp Systems & PartsRoll-Off Truck Hoist/Hook Hoist PartsRoll-off Truck / Hook Hoist PartsCarry Can Replacement PartsCables & StrapsRollers & AccessoriesSheave Pulleys & PinsHoist CylindersContainer Securement System & PartsOther Roll-off Truck / Hook Hoist PartsRoll Off Hydraulics,Filters,& PneumaticsRoll-Off ElectricalCarry Can Replacement CylindersCarry Can Body Replacement PartsCarry Can Grabber Beam PartsCarry Can Slide Assembly PartsCarry Can Hydraulics & PneumaticsCarry Can Hinge Replacement PartsOther Manufacturer Replacement Parts
NYLON MAGNETIC SAFETY SWITCH ASSMBL
UNIV. INTRLK - ALUM. MAGN. SFTY SWT W/ARMORED CBL
POWER UNIT, PLC 3 PH 10 HP 12 GPM W/15' CNTRLS
Part # : A.PUX.LC.3.10
4/36/2.5R/31.25 COMPACTOR CYL. (BY PASS)
Part # : C.CYL.436.BP
5/50/2.5R/42 COMPACT. CYL (BY-PASS)
Part # : C.CYL.550.BP
AB 30MM CYLINDER LOCK PUSH BUTTON (KEY SWITCH) WITH GUARDED BEZEL WITH 2 NO
Part # : C.AB30.NX970
1.25" PIN FOR COMP. CYL - UNIVERSAL ADJ. (with COLLAR, SCREW & NUT)
Part # : C.CYL.PIN.9
Compactor Safety Switches & Door Interlocks
Replacement safety interlock switches for industrial trash compactors — chamber door interlocks, guard interlocks, hopper-closed sensors. OEM-compatible with Marathon, PTR, Wastequip, Harmony, and SP Industries.
What this page covers
Safety interlock switches confirm that the chamber door is closed before a cycle starts, that guards are in position, and that no part of the operator is in a pinch zone. When one fails, the compactor must be removed from service until repaired — and the replacement switch must meet the same reliability spec as the original.
Most are mechanical key-actuated or solenoid-actuated, with hardwired fail-safe contacts that signal the control system the instant a safety condition isn't met.
How to choose
Identify the safety switch by its function (door interlock, guard interlock, hopper sensor) and its electrical specification (contact ratings, fail-safe design). The compactor's safety schematic will list the OEM part number; PRT can match equivalent ratings.
Safety switch types in stock
- Door interlock switchesConfirm the chamber door is fully closed before cycle start.
- Guard interlock switchesConfirm safety guards are in position.
- Hopper-closed sensorsDetect when the loading hopper is in its safe position.
- Replacement key actuatorsWhen the switch is good but the actuator key is lost or damaged.
Frequently asked questions
What rating does a compactor safety switch need?
ANSI Z245.5 is the governing standard for stationary industrial compactors. Safety switches must have positive-opening contacts (fail-safe design) and meet specific reliability ratings — typically Category 3 or 4 under ISO 13849. PRT replacements are spec'd to the required ratings.
Can I bypass a safety switch temporarily to keep the compactor running?
No. Bypassing a safety switch creates OSHA liability and exposes operators to serious injury. If a safety switch is failing intermittently, replace it; if it's a wiring issue, repair the wiring. Never jump out a safety contact.
Are PRT safety switches OEM-spec for my compactor model?
Yes, PRT safety switches are universal and will work on any compactor. Match the voltage and power type of your unit (i.e. 120V AC, or 24V DC).