Intermatic T104-20 Mechanical Water Heater Timer

Intermatic T104-20 Mechanical Water Heater Timer

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Item# Intermatic T104-20

Model Number

Utilities in many areas of the country offer two electric rates for
residential or commercial customers. One rate has the regular
daytime electrical rate, the other is the “off-peak” rate. The “offpeak”
rate provides customers with “lower-priced” electricity during
the nighttime and weekend periods. These time switches allow the
customer to shift electricity use into these “off-peak” time periods in
an attempt to save utility costs.


• Convenient external override switch (WH40 only)

Water Heater Control for:
• Residential • Commercial • Industrial
• Institutional/Schools • Military Facilities

Enclosure: NEMA 1 Rated Indoor steel in gray finish.
Spring hasp, with hole for lock, holds permanently attached, side hinged door closed.
Three mounting holes on back plus handy box mounting holes.
73 ⁄4 in. (19.7 cm) H x 5 in. (12.7 cm) W x 3 in. (7.6 cm) D
Knockouts: Combination 1 ⁄2 – 3 ⁄4 in. nominal knockouts, one on back and each side of
enclosure and two on bottom.
Switch Rating: 10,000 W (40 amp) Max 250 volt, 60 Hz.

Model Number: T104-20

Switch: DPST Clock Supply Volts AC 60 Hz: 208, 240 Watts: 10000 External Switch: No Amps/Pole: 40







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