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Red Lion Controls PXU21B20 Process Controller

The PXU Series PID Controller by Red Lion is a versatile process control device suitable for industrial applications such as food & beverage, factory automation, and manufacturing. It features universal inputs including thermocouples, RTDs, and 0-10 VDC signals, with full PID control and on-demand auto-tuning for precise process regulation. The controller offers ramp/soak capabilities, dual analog inputs and outputs, and a current transducer input, making it ideal for complex control tasks requiring reliability and easy setup via Crimson software. Its compact design with IP 65 protection ensures durability in demanding environments.

Authorized Distributors
Source:DigiKey
Part No:PXU21B20
Stock:0
Inv Date:06-09-2026
Price: Unit price: $266.32
Buy/RFQ:
Part No:PXU21B20
Stock:0
Inv Date:06-10-2026
Price: Unit price: $235
Buy/RFQ:
Part No:PXU21B20
Stock:1
Inv Date:06-09-2026
Price: Unit price: $317.75
Buy/RFQ:

Red Lion Controls PXU21B20 Process Controller Specifications:

  • Display: LCD negative image transmissive with backlighting, 4 digits per line; 1/16 DIN digit size: 0.43" (11 mm), 1/8 DIN: 0.47" (12 mm), 1/4 DIN: 0.87" (22 mm)
  • Input Capabilities: Thermocouple, RTD, 0-10 VDC, 4-20 mA (0-50 mA), ±50 mV
  • Process Inputs: 0-5 VDC, 0-10 VDC, 0-20 mA, 4-20 mA, 0-25 mA with optional CT sensor
  • Control Outputs: Two configurable relay or analog outputs, with options for 0-10 VDC or 4-20 mA signals
  • Additional features: Ramp/soak, auto-tuning, dual relay alarms, CE and UL listed, IP65 enclosure rating, operating temperature 0-50°C, storage -20 to 65°C, humidity up to 80%
  • Power Supply: 100-240 VAC or 24 VDC, dimensions vary with model, total weight from 7.8 oz to 11 oz
  • Communication: RS-485 serial port (optional), supports Modbus, CE approved, immunity to industrial disturbances per EN 61326-1

Buy the Red Lion Series PXU Temperature/Process Controllers: PXU21B20

Purchase the Red Lion PXU Series process controller online today to experience reliable performance with universal inputs, full PID control, ramp/soak, and easy setup. This high-quality device is suitable for demanding industrial applications like food & beverage, automotive, and manufacturing industries. Its compact IP65 enclosure and robust design ensure durability. The controller’s configurable outputs, auto-tuning, and communication options make it an ideal choice for process engineers and machine builders seeking precision, flexibility, and simplicity in their automation solutions. Buy now for efficient process management.

Get Red Lion PXU21B20 today—built for precision and long-lasting durability in industrial process control.

Frequently Asked Questions

Where can I buy Red Lion Controls PXU21B20?

You can click on the BUY or RFQ button to purchase PXU21B20 from an authorized Red Lion Controls distributor.

How do I troubleshoot issues or seek technical support for part PXU21B20?

You can download the PXU21B20 datasheet or visit the Red Lion Controls website for support.

Who is the manufacturer of PXU21B20?

Red Lion Controls

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