How do I install these? (First time pool owner)

On the disc that spins arounds with all the times of day on it, place the flag for "ON" at what time you want it on. The disc slips into the forked part of the flag. The flag portion goes under the disc to trip the on/off switch as it spins around. The words ON or OFF should face you when you look at the timer. Place a set screw in the hole on the flag and tighten it to hold it in place. The same goes for the "OFF" position flags. I tighten the screws with small pliers as they seem to work loose over time, if I don't.

Why does this come with two different colored 'on' triggers?

The two color "ON" switches are different and for different type of timers. If you have the T100 Series timer, use the green "ON". If not, use the silver "ON". Hope this helps!

Has 156t1950a been replaced by 156t1978a?

I don't know but look in your timer box and you will find the correct number that you will need.

Want to make sure I understand replacement. I will use the green and gold for pool timer. Which color is to turn on and which color to turn off?

The timer switches are etched with "ON" on the green switches and "OFF" on the gold switches.

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Intermatic 156T1978A Time Switch Trippers for T100 Series Timers 2 On 2 Off With 4 Screws Per Package (2 Pack)

Product ID: 330942738

Details

Brand
Intermatic
Colour
Gold Silver
Item weight
0.01 Ounces
Material
Metal
Product dimensions
51D x 25W x

🔧Easy installation with included screws

⏱️Precision timing control

🛠️Compatible exclusively with Intermatic timers

6363 kr

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Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⏳ Master your schedule with precision and style!

SECURE FIT - Includes 8 set screws ensuring stable, reliable mounting
NO BATTERIES NEEDED - Maintenance-free, purely mechanical operation
COLOR CODED TRIPPERS - Gold, silver, turquoise for intuitive ON/OFF setup
DUAL PACK CONVENIENCE - Two kits per package for extended use or backup
VERSATILE COMPATIBILITY - Designed for T100, T7000 & WH40 Series Intermatic timers

The Intermatic 156T1978A Time Switch Tripper Kit offers a dual-pack solution with color-coded trippers and set screws, engineered exclusively for Intermatic T100, T7000, and WH40 Series timers. This compact, battery-free kit ensures precise ON/OFF timing control with easy installation, perfect for professionals seeking reliable and efficient lighting automation.

Specifications

ASIN	B078N6VDZM
Brand Name	Intermatic
Color	Gold, Silver
Customer Reviews	4.7 4.7 out of 5 stars (3,379)
Item Dimensions D x W x H	51D x 25W x 51H millimeters
Item Type Name	156T1978A Time Switch Trippers for T100 T7000 WH40 Series Timers
Item Weight	0.01 Ounces
Manufacturer	Intermatic
Manufacturer Part Number	4335515417
Material Type	Metal
Model Number	8541987130
Number of Items	16
Number of Packs	2
Number of settings	8
UPC	710525812117 710525812100
Unit Count	1.0 Count

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6363 kr

Duties & taxes included

In stock

Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Iceland.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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