- 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
-
Compactor Parts
Power UnitsElectrical PartsLimit/Safety/Photo/Press. SwitchesButtons/Switches/Keys/LegendsHydraulic PartsCylindersOther Compactor Parts30 MMPanels And ControlsMotorsMotor Starters / Transformers / FusesAccessories Electrical30 MM Key Switch30 MM Selector Switch30 MM Push Only Switch30 MM Legends30 MM Contacts And Replacement Keys22.5 MM
- Commercial Dumpster Parts
- Roll-Off Container Parts
-
Refuse Body Truck/Roll-off Hoist Parts
Heil Replacement PartsMcNeilus Replacement PartsTarp Systems & PartsRoll-Off Hoist/Hook Hoist PartsRoll-off / Hook Hoist PartsCurrotto Can Replacement PartsCables & StrapsRollers & AccessoriesSheave Pulleys & PinsHoist CylindersContainer Securement System & PartsRoll Off Hydraulics,Filters,& PneumaticsRoll-Off ElectricalCurotto Can Replacement CylindersCurotto Can Body Replacement PartsCurotto Can Grabber Beam PartsCurotto Can Slide Assembly PartsCurotto Can Hydraulics & PneumaticsOther Manufacturer Replacement Parts
AB 22MM CONTACT BLOCK NORMALLY OPEN
AB 22MM CONTACT BLOCK NORMALLY CLOSED
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
22.5mm Contact Blocks for Push Buttons & Switches
Replacement 22.5mm contact blocks for industrial trash compactor push buttons and switches — snap-in 1-NO, 1-NC, 2-NO, 2-NC, and 1-NO/1-NC configurations. Compatible with Schneider Harmony XB5, Siemens 3SU, Allen Bradley 800F, and Eaton M22 panel systems.
What this page covers
Contact blocks are the electrical workhorses behind a 22.5mm button or switch — they open and close the actual control circuit when the operator presses or turns the panel hardware. Most 22.5mm buttons accept 1-2 contact blocks stacked behind them.
PRT stocks the standard 22.5mm contact block configurations in OEM-equivalent electrical specs.
How to choose
Match by configuration (1-NO, 1-NC, 2-NO, 2-NC, 1-NO/1-NC), electrical rating (10A at 240V AC standard), and snap-in compatibility with the button or switch body.
Stock spare contact blocks — they're the most-replaced electrical component on any compactor panel.
In stock options
- 1-NO (Normally Open)Single NO contact for cycle-start circuits.
- 1-NC (Normally Closed)Single NC contact for cycle-stop circuits.
- 2-NO (2 × Normally Open)Two NO contacts in one block.
- 2-NC (2 × Normally Closed)Two NC contacts for safety circuits.
- 1-NO/1-NC (Combination)One of each for complex logic.
- Heavy-duty rated blocksHigher current ratings for direct switching.
Frequently asked questions
Are 22.5mm contact blocks brand-interchangeable?
Mostly. Snap-in 22.5mm contact blocks follow industry-standard dimensions. PRT contact blocks fit Schneider Harmony XB5, Siemens 3SU, Allen Bradley 800F, Eaton M22.
How many contact blocks can mount behind one 22.5mm button?
Most buttons accept up to 2 contact blocks. Some heavy-duty designs accept 3.
What's the electrical rating of a 22.5mm contact block?
Standard is 10A at 240V AC. Heavy-duty rated blocks go higher for direct motor switching.
How do I diagnose a failed 22.5mm contact block?
Multimeter continuity check — verify the contact opens and closes cleanly when actuated. Pitting or arc damage requires replacement.