201NN-K115-U9-C7A SOR Electromechanical Temp Switch 2300 PSI
Introduction:
The SOR 201NN-K115-U9-C7A is an electromechanical temperature switch. It has an adjustable range of 150 to 375 degrees Fahrenheit. This unit handles 2300 PSI proof pressure and 15 amp electrical loads.
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Product Overview of the SOR 201NN-K115-U9-C7A Temperature Switch
The SOR 201NN-K115-U9-C7A provides reliable temperature monitoring for industrial processes. This electromechanical switch activates or deactivates circuits at set temperatures. The adjustable range covers 150 to 375 degrees Fahrenheit. In Celsius, this range is 66 to 190 degrees.
The overrange temperature reaches 520 degrees Fahrenheit or 270 degrees Celsius. This high overrange protects the switch during process upsets. The proof pressure rating is 2,300 PSI for rugged applications. This makes the 201NN-K115-U9-C7A suitable for high pressure systems.
Typical dead band measures 2.2 degrees Fahrenheit or 1.2 degrees Celsius. A narrow dead band ensures precise switching around the set point. The electrical rating is 15 amps at 24 volts. This allows direct switching of many industrial loads.
Technical Specifications of the 201NN-K115-U9-C7A
Product Type: Temperature Switch
Adjustable Range: 150 to 375°F (66 to 190°C)
Overrange Temperature: 520°F (270°C)
Proof Pressure: 2,300 PSI
Electrical Rating at 24V: 15 amps
Typical Dead Band: 2.2°F (1.2°C)
Switch Type: Electromechanical
Mounting: Direct mount with thermowell (compatible)
The SOR 201NN-K115-U9-C7A uses a proven electromechanical design. No external power is needed for switch operation. The temperature sensing element responds directly to process temperature changes. This provides reliable and repeatable switching performance.
The switch mechanism triggers when the process temperature reaches the set point. The reset occurs when temperature drops below the set point minus dead band. This hysteresis prevents rapid cycling around the switching point.
Mechanical and Environmental Ratings
The SOR 201NN-K115-U9-C7A withstands demanding industrial conditions. The 2,300 PSI proof pressure rating ensures durability in high pressure systems. This switch connects to standard thermowell installations for process mounting.
The sensing element is compatible with various process media. Always verify material compatibility with your specific application. The electromechanical design works without sensitive electronics. This makes the 201NN-K115-U9-C7A immune to electrical noise.
The operating temperature range of the switch housing is broad. However, the sensing range is limited to 150-375°F as specified. Do not exceed the 520°F overrange temperature limit. Exceeding this limit may damage the internal sensing mechanism.
Installation Guide for the 201NN-K115-U9-C7A
Follow these steps to install the SOR 201NN-K115-U9-C7A correctly.
Select a compatible thermowell for your process connection.
Install the thermowell into the process pipe or vessel.
Apply thread sealant to the thermowell threads before installation.
Screw the temperature switch into the thermowell hand tight.
Use a wrench on the switch hexagon for final tightening.
Do not overtighten or use the switch housing for leverage.
Connect the electrical wires to the switch terminals.
Verify the electrical load does not exceed 15 amps at 24V.
Adjust the set point using the adjustment screw or knob.
Test the switch operation with a known temperature source.
The electrical enclosure may require grounding per local codes. Use appropriate conduit fittings for hazardous locations if needed. Protect the switch from excessive vibration or mechanical shock.
Package Contents for SOR 201NN-K115-U9-C7A
1 x SOR 201NN-K115-U9-C7A temperature switch assembly
1 x Installation and adjustment instruction sheet
2 x Conduit plug for unused electrical openings
1 x Set point adjustment tool (small hex key)
Frequently Asked Questions (FAQ)
1. Does the 201NN-K115-U9-C7A include a thermowell?
No, the SOR 201NN-K115-U9-C7A does not include a thermowell. You must purchase a compatible thermowell separately. Select a thermowell that matches your process connection and material requirements.
2. What is the meaning of proof pressure on this switch?
Proof pressure is the maximum pressure the sensing element can withstand. The SOR 201NN-K115-U9-C7A has a 2,300 PSI proof pressure rating. This does not mean the switch will operate correctly at that pressure.
3. Can I use this switch for high temperature applications above 375°F?
No, the adjustable range stops at 375°F for normal operation. The 520°F overrange is only for temporary process upsets. Continuous operation above 375°F will damage the switch.
4. How accurate is the SOR 201NN-K115-U9-C7A temperature switch?
Typical accuracy is within plus or minus one percent of range. The dead band of 2.2°F affects the reset point. Calibration should be checked periodically for critical applications.
5. What is the difference between electromechanical and electronic switches?
Electromechanical switches like the 201NN-K115-U9-C7A need no external power. They are simple and immune to electrical noise. Electronic switches offer higher accuracy but require power and are more sensitive.