Intermatic
Intermatic 156T2548A Timer Trippers PK7 for T7400/T7800/T51000
Set of seven replacement on/off timer trippers compatible with T7400, T7800 and T51000 timers
- Metal trippers resist wear for long service life
- Built-in mounting screw speeds installation on the timer
- Seven trippers per pack supply multiple on/off cycles
- Compatible with T7400, T7800 and T51000 timer models
- Replacement parts restore original timer function
Replacement On/Off Trippers
This pack contains seven metal timer trippers manufactured by Intermatic. Each tripper features a built-in screw for secure mounting onto compatible timer dials. They function as the on and off actuators for the timing cycle. The items are supplied new in a package quantity of seven.
For Intermatic T-Series Timers
These trippers are designed specifically for Intermatic T7400, T7800 and T51000 timer models. They suit maintenance teams or electricians replacing worn or lost actuators on those units. Buyers with other timer brands or different Intermatic series cannot use these parts. The package supplies exactly seven trippers, so projects requiring a different count will need multiple packs or a separate source.
Package Quantity Seven
The box provides seven individual metal trippers, which is the only quantity offered for this part number. This number determines whether the pack matches the timer's available tripper slots or the spares required for a service call. Verify the required count against the timer's dial capacity before ordering.
Highlights
- Metal trippers resist wear for long service life
- Built-in mounting screw speeds installation on the timer
- Seven trippers per pack supply multiple on/off cycles
- Compatible with T7400, T7800 and T51000 timer models
- Replacement parts restore original timer function
Specifications
| Brand | INTERMATIC |
|---|
Questions about this item
How are the metal On/Off trippers installed on the T7400 timer, and what step is often missed?
Each tripper has a built-in screw; align it with the timer dial slot and tighten the screw fully so the tripper cannot rotate during operation.
What maintenance or replacement will the PK7 tripper set need over time?
The metal trippers are wear items; inspect the screw threads and contact surfaces periodically and replace any that show stripped threads or rounded edges.
What limit appears first when the trippers are used continuously on a T7800 timer?
The mechanical limit is the screw-clamp holding force; sustained vibration can loosen the built-in screw, causing the tripper to shift and miss its switching point.
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