SOR 201NN-K115 Series Electromechanical Temperature Switch 2300PSI

Product Overview

• The SOR 201NN-K115-U9-C7A is a high-performance electromechanical sensing instrument.
• This 201NN Series device monitors critical thermal thresholds in high-pressure industrial environments.
• It utilizes a vapor-pressure thermal system to actuate a rugged snap-action electrical switch.
• The heavy-duty housing ensures reliable operation within demanding process control loops.

Technical Specifications

• Brand: SOR Controls Group
• Model Number: 201NN-K115-U9-C7A
• Product Series: 201NN Series
• Adjustable Range: 150 to 375°F (66 to 190°C)
• Overrange Temperature: 520°F (270°C)
• System Proof Pressure: 2300 PSI
• Electrical Rating: 15 Amps @ 24 VDC / 250 VAC
• Typical Dead Band: 2.2°F (1.2°C) sensitivity
• Linearity and Resolution: High-precision mechanical repeatability within 1% of range
• Environmental Tolerance: Weatherproof construction resistant to harsh industrial atmospheres
• Interference Resistance: Purely mechanical actuation provides total immunity to EMI/RFI

Installation and Compatibility

• Mount the 201NN-K115-U9-C7A vertically for optimal thermal fluid convection.
• The unit is compatible with standard industrial thermowells for process isolation.
• Standard NPT connections facilitate seamless integration into existing pressurized piping.
• Ensure all electrical wiring follows the internal terminal block grounding protocols.

Commissioning and Maintenance

• Calibrate set points easily using the external hex adjustment nut.
• The threaded cover allows quick access to terminals for field testing.
• Mechanical design eliminates the need for software-based diagnostic tools or power.
• Perform annual inspections of the bellows assembly to ensure system integrity.

Typical Application Scenarios

• Turbine Systems: Monitoring lubrication oil temperature to prevent bearing damage.
• Boiler Control: Functioning as a high-limit safety cut-out for steam systems.
• Hydraulic Units: Detecting fluid overheating in high-pressure power packs.
• Heat Exchangers: Managing cooling water flow based on secondary side temperature.

Global PLC Spare HUB’s Insight

• The SOR 201NN-K115-U9-C7A is a "set-and-forget" industrial workhorse for engineers.
• This 201NN Series switch provides hardware-based protection independent of PLC logic.
• It is perfectly suited for safety-critical interlocks in oil, gas, and power generation.

Shipping and Warranty

• Packaging List: One (1) SOR 201NN-K115-U9-C7A, Installation Guide.
• Warranty: 12-month comprehensive quality guarantee included.
• Dispatch Time: Orders ship within 24-48 hours.
• Express Delivery: Worldwide shipping via FedEx, UPS, and DHL.

Buying Guide

• Verify that your maximum process temperature remains below the 520°F limit.
• Confirm the 15A electrical rating supports your specific control circuit load.
• Select the 201NN-K115-U9-C7A when high proof pressure (2300 PSI) is required.
• Ensure the wetted material codes match your specific chemical process media.

Frequently Asked Questions (FAQ)

• Can I adjust the temperature setting while the switch is installed? Yes, the external adjustment nut allows for field calibration under pressure.
• Does this model require an external power source to function? No, the 201NN Series uses mechanical expansion for autonomous operation.
• Is the dead band adjustable on this specific unit? The dead band is fixed at 2.2°F to maintain high-precision switching.
• What happens if the ambient temperature is extremely high? The rugged housing protects the internal snap-switch from most industrial ambient heat.
• How do I verify the switch has tripped during a test? Use a multi-meter to check continuity across the SPDT terminal contacts.

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