Intermatic | 156PB10398A | On/Off Trippers — 2 On + 2 Off Replacement Set for P1000/P1100 Series Timers

The Intermatic 156PB10398A On/Off Trippers kit provides a set of color-coded plastic tripper clips designed for use with the P1000, PB, P1100 and PF1100 series mechanical time switches. It allows installers and service technicians to quickly restore or extend the number of on/off events on the dial of these timers. 

Key Features

• Includes 2 green “ON” trippers and 2 red “OFF” trippers in the set. 

• Compatible with Intermatic timers: P1000 series, P1100 series, PB/ PF1100 series, P1261P portable outdoor units, and PB913N84 mechanisms. 

• Enables customizable scheduling by allowing additional on/off events on 24-hour mechanical time switches. 

• Lightweight plastic construction for economical replacement of missing or damaged trippers.

• Ideal for HVAC, lighting, pump and pool timer applications where precise mechanical scheduling is required.

Product Overview
When a mechanical time switch loses its trippers (for example through accident, corrosion, or parts handling), the ability to set scheduled on/off events can be compromised. The 156PB10398A replacement set restores this functionality by providing the exact clips to mount into the dial of the timer mechanism. Because they are color-coded, setup is clear and intuitive: green = ON, red = OFF.

Technicians working on pool equipment, lighting control, or facility timing systems will value the compatibility of these trippers with multiple Intermatic sub-series and the low cost compared to full timer replacement. For e-commerce listings, emphasize that this is a maintenance/service part—not a standalone timer—and is meant for mechanical 24-hour dial switches requiring additional or replacement event pins.