Specification

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Energy Controls
T170, T1400 & T1800 Series
Model with
Type 1 Enclosure
Model with
Type 3R Enclosure
Switch Carryover Clock Motor VAC 60 Hz
T171 - SPST No 125
T172 - SPST No 208-277
T173 T173R DPST No 125
T174 T174R DPST No 208-277
T175 - 1N.O./1N.C.* No 125
T176 - 1N.O./1N.C.* No 208-277
- T1471BR*** 4PST No 125
- T1472BR*** 4PST No 208-277
- T1475BR*** 4PST No 480
- T1871BR*** 2N.O./2N.C.** No 125
- T171CR SPST Yes 125
- T173CR DPST Yes 125
- T174CR DPST Yes 208-277
- T1471BCR*** 4PST Ye s 125
*Can be wired as SPDT
**Can be wired as DPDT
***Separate clock motor terminals for switching circuits not on line voltage
Specification
The time switch shall be a 24-Hour with a Skipper dial type, capable of permitting up to 10 ON/OFF operations each day.
The time switch shall provide a minimum ON/OFF time of 1 hour. A skipper dial shall be provided to allow for
omitting operation on any selected day(s) of the week. The time switch to be powered by _________________ (125)(208-
277)(480) VAC, 60 Hz power supply. The time switch motor shall be a synchronous motor, which shall be designed to
withstand a minimum of 6000 Volt transients. The time switch motor shall be connected to the supply terminals with
ring-type connectors and shall not require more than _________ (3)(5) Watts to operate. The time switch mechanism shall
be a snap-in design, or have two hex head screws for easy removal from the enclosure. The time switch enclosure shall
be a ________________ (Type 1)(Type 3R) lockable steel enclosure, which shall be painted with an electrostatic process.
The time switch enclosure shall provide a minimum of 31 cubic inches of wiring space and shall provide a
non-removable cover, which shall swing open a full 180 degrees. The time switch shall provide clear terminal
identication on a non-curling terminal insulator. A visual indicator shall be provided in the time switch for inspecting
clock motor operation. The time switch contact blades shall be a one piece design with welded silver alloy contacts and
shall be designed to provide wiping action on contacts during operation to ensure reliable load switching. Terminal
connections shall be made using teeter-type terminal screws to provide secure connections for wire sizes up to #8 AWG.
Switch conguration shall be ___________________ (SPST)(DPST)(1N.O./1N.C.)(2N.O./2N.C.)(4PST) with an agency listed
switch rating each pole:
• 40 Amp Resistive, 120-480 VAC
• 40 Amp Tungsten, Inductive or 1000 VA Pilot Duty, 120-277 VAC
• 2 HP, (24 FLA) 120 VAC
• 5 HP, (28 FLA) 240 VAC, single phase
• 7 ½ HP, (28 FLA) 208 VAC
• 10 HP, (28 FLA) 240 VAC, three-phase
The time switch with a “C” sufx shall include a spring wound carryover and shall maintain time control on schedule
during power failure for up to 16 hours. The time switch carryover shall automatically rewind upon power resumption.
The time switch shall be agency listed under Clock Operated Switches and shall be Intermatic model
____________________(See Model Numbers Listed).