$5400
- Convenient external override switch
- NEMA 1 rated indoor steel enclosure
- Residential, commercial, industrial, military,school applications
- View More Details
How to Get It
Product Overview
The WH40 Mechanical Water Heater Time Switch regulates electric water heaters. Utilities in many areas of the country offer two electric rates for residential or commercial customers. One rate has the regular daytime rate, the other is the 'off-peak' rate. This 'off-peak' rate provides customers with lower priced electricity during the nighttime and weekend periods. This time switch allows the customer to shift electricity use into the 'off-peak' time periods in an attempt to save utility costs.
- Double pole, single throw
- Convenient external override switch
- NEMA 1 rated indoor steel enclosure
- CSA listed
- For use in residential, commercial, industrial, military, and school applications
- Additional sets of trippers are available - #156T1978A
Additional Resources
From the Manufacturer
Specifications
Dimensions
| Product Depth (in.) | 3 in | Product Height (in.) | 7.8 in |
|---|---|---|---|
| Product Width (in.) | 5 in |
Details
| Commercial/Residential | Commercial,Residential | Finish Family | Gray |
|---|---|---|---|
| Material | Metal | Product Type | Timer |
| Product Weight (lb.) | 2.4 lb | Returnable | 90-Day |
Warranty / Certifications
| Manufacturer Warranty | 1 year |
|---|
Questions & Answers
Typical questions asked about products:
- Is the product durable?
- Is the product easy to use?
- What are the dimensions of the product?
Customer Reviews
Oct 6, 2019
The Intermatic 40-Amp time is perfect for our water heater...
The Intermatic 40-Amp time is perfect for our water heater and pool chlorinator needs. We used 2 of them. Wiring is straightforward, and available knockouts met our needs for interfacing with conduit.
by
Apr 2, 2019
Accidentally ordered different brand - my error. Upon realizing this, ordered the Intermatic to r...
Accidentally ordered different brand - my error. Upon realizing this, ordered the Intermatic to replace an old one. Installation was literally a snap. No rewiring needed, after unhooking the wires, just snapped out the old unit, snapped the new one into the older housing and re-hooked the wires. Thankful that in 30 years, the units were virtually identical because I was not looking forward to having to mount the replacement on a concrete wall and re-run new conduits, etc. Thanks to Home Depot for continuing to stock an old, reliable brand. And further thanks for the ease of ordering via internet, so all I had to do is walk in and put my order number into the locker. No hassle either in returning the other brand that I didn't need. This is especially helpful as I get older and less able to physically walk up and down aisleways.
by
Jan 1, 2019
Overall I like the timer. Two things though. I have used one at another home for eight years with...
Overall I like the timer. Two things though. I have used one at another home for eight years with no problems. The only criticism I have is the timer is noisy!!! The old one was noisy and the new one I bought last month month is just as noisy. You can hear the timer running. The second thing is the ground wire connection requires the wire to be bent around the screw. On the other terminal connections you don't have to bend the wire. You can leave the wire straight and insert it in the connection and tighten the screw. Thanks
by
Oct 20, 2017
Easy to install
Easy to install
by
Jul 28, 2021
Works great! Keeps excellent time....
Works great! Keeps excellent time.
by
Jul 25, 2021
Poor quality and insufficient warranty / support
I replaced the existing Little Grey Box because the trippers stopped working (timer would jam on the tripper). The next one lasted two years before the same thing started again. Support said it was a motor failure. I replaced the motor with a new one from Granger. The new one did not help the issue. I am replacing the box with a digital one. That's three boxes in two years. At minimum, Intermatic should have sent me the replacement motor.
by
Dec 24, 2020
As expected and helps to save on energy bills.....
As expected and helps to save on energy bills..
by
Nov 12, 2020
Good Price on clearance, about 1/2 off.
Good Price on clearance, about 1/2 off.
by
Jul 16, 2020
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by
Jan 9, 2020
Easy to install and accurate times as set....
Easy to install and accurate times as set.
by
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