Name: SOR 201NN-K115-U9-C7A Electromechanical Temperature Switch 201NN
SKU: 201NN-K115-U9-C7A
Availability: InStock

Product details

The 201NN-K115-U9-C7A is a high-performance electromechanical switch engineered for critical thermal monitoring in high-pressure environments.
This 201NN model utilizes a vapor-pressure sensing element that provides a decisive mechanical snap-action without the need for external power.
With a massive 2300 PSI proof pressure, the 201NN-K115-U9-C7A ensures structural integrity even during significant process surges.
The 201 Series architecture is favored by engineers for its immunity to electronic interference and long-term setpoint stability.
This specific configuration is optimized for heavy-duty industrial loads with a robust 15 Amp electrical rating.

Brand: SOR (Static-O-Ring)
Model Code: 201NN-K115-U9-C7A
Adjustable Range: 150 to 375°F (66 to 190°C) for versatile process control.
Overrange Limit: 520°F (270°C) protection prevents sensor damage during thermal spikes.
Maximum Proof Pressure: 2300 PSI ensures safety in high-stress hydraulic or steam systems.
Typical Dead Band: Tight 2.2°F (1.2°C) differential for precise cycling management.
Electrical Capacity: 15 Amps @ 125/250 VAC; 15 Amps @ 24 VDC (resistive).
Switching Mechanism: Electromechanical SPDT snap-action for high-vibration resistance.
Resolution & Sensitivity: Designed for high-repeatability industrial draft and thermal ranges.
Material Compatibility: Built with premium wetted parts to withstand aggressive process media.

The 201NN-K115-U9-C7A is a “set-and-forget” solution, offering superior reliability compared to digital sensors in RFI-heavy environments.
Our review indicates that the 201NN series’ mechanical simplicity significantly reduces failure points in Emergency Shutdown (ESD) loops.
This unit is perfectly suited for turbine bearing protection, large compressor stations, and industrial boiler controls.
The U9-C7A variant provides the specific durability required for offshore and petrochemical refinery applications.
For custom configuration queries, contact our engineering desk at sales@powergearx.com.

Condition: 100% Genuine and Brand New SOR 201NN-K115-U9-C7A.
Shipping Lead Time: Fast-track dispatch within 12-48 hours.
Logistics Partners: International express delivery via FedEx, UPS, and DHL.
Warranty Terms: Covered by a comprehensive 12-month quality guarantee.
Support: Direct technical assistance available via WhatsApp: +86 18030005825.

Does the 2300 PSI proof pressure apply to the sensing bulb?
Yes, the 201NN-K115-U9-C7A is designed so the entire pressure-retaining assembly can withstand 2300 PSI without leaking.
Can I use this switch for high-current motor starts?
With a 15 Amp rating, it can handle many direct loads, but we recommend using a contactor for high-horsepower motors to extend switch life.
How do I calibrate the 150-375°F range in the field?
The internal adjustment nut allows for precise setpoint calibration; we suggest using a stabilized oil bath for maximum field accuracy.
Is the 201NN-K115-U9-C7A immune to electrical noise?
As an electromechanical device, it has no digital logic, making it 100% immune to electromagnetic interference (EMI).
What is the primary benefit of the narrow 2.2°F dead band?
It ensures the system reacts quickly to small temperature changes, maintaining a very stable process environment.

Verify that your normal operating temperature falls within the 150-375°F range for optimal sensitivity.
Ensure that the process pressure does not exceed the 2300 PSI safety limit.
Specify the 201NN series when your application demands a local mechanical switch with no external power requirements.
Choose Powergear X Automation for verified authentic SOR products and expedited global shipping.

Original Source: https://www.powergearx.com/