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Whether or not a NEMA 4 controller can be replaced with a controller that is not NEMA 4 depends on the specific application. NEMA 4 controllers are designed to withstand water and dust ingress, so they are often used in outdoor or harsh environments. If the controller is being used in an environment where it is exposed to water or dust, then it is important to replace it with a NEMA 4 controller.
Overall, it is important to consult with a qualified electrician before replacing a NEMA 4 controller with a controller that is not NEMA 4. The electrician can assess the specific application and recommend the best controller for the job.
If you want to look for a controller, you can visit: https://www.chipsmall.com/bigcategory/industrial-automation-and-controls.html to search for the controller you want.
You have to have the On and Off "trippers" firmly installed against the yellow timer dial and the thumb screws on them must be tight. Turn the time dial by hand to be sure it trips the lever back and forth. If that part if working OK then you will need someone to come and make sure the load (device you're controlling) is connected to it properly and of course the timer is indeed running and appears to be keeping the correct time. You can check that a half hour after setting it to the current time.
2) However typical T101P201 timer is ordinary T101 timing mechanism inside Nema 3R beige-colored outdoor plastic enclosure, with additional fireman's switch.
Wiring for T101 shows on following link, and shows on door of timer enclosure: Check that your timer terminals match illustrations because many timers can fit inside Intermatic enclosures.
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T101
3) Fireman switch wiring: T101P201 has a fireman's switch that wires directly to the pool heater thermostat. http://waterheatertimer.org/pdf/Intermatic-Firemans-switch-156T4042A.pdf If you are not using the timer for pool heater, or if heater does not have connection for fireman's switch, then do not connect fireman switch wires, and just tape them out of the way.
u can take three incadescent bulbs of same rating, connect them in 3 phase star connection, means 3 phase 4 wire connection..connect it across supply..the bulb connected across low voltage phase will glow dimmer than other two
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