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West P4100 1/4DIN (96 x 96mm) Temperature/Process Controller

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West P4100 1/4DIN (96 x 96mm) Temperature/Process Controller

Excl. VAT: £357.67 Incl. VAT: £429.20
  • Buy 3 for £316.00 (£379.20 incl. tax) each and save 12%
Contral - Official Distributor
The West P4100 comes complete with Full PID with Pre-tune, Self-tune, Manual Tuning, or On-Off control, Heat only or Heat & Cool.

The West P4100 (or 4100+ plus) is a new generation of temperature/process controller that takes flexibility and ease of use to new levels. With the added flexibility of selectable input types and plug in output modules, making most features such as adding an additional alarm or serial communications easy.

*** If you are looking for a direct replacement for your existing West P4100 or N4100 controller, just phone or email us by completing Contact Us under the Contact Tab, with the configuration code (P4100-XXXXXXX or N4100-ZXXXXX-SXX where X represents a number) found on the controller's label and we will do the rest ***

Note: The P4100, also known as the p4100+ and P4100 PLUS is a direct replacement for the N4100 and can be plugged into the same case. The P4100 is also the recommended replacement (dependant on application) for the following West, Gulton & Mark IV controllers- MC20, MC30, MC35, MC40, OPUS70, OPUS71, OPUS72, 2068, 2068DS, 2070, 2071, 2072, 2073, 2075, please check submit your instrument model no. to check compatibility


  • Auto/Manual - Selectable from front panel, with bumpless transfer.
  • Alarm 1 & 2 (Options) - (Configurable) Process High, Process Low, SP Deviation, Band, Logical OR and Hysteresis. Also 1 Loop Alarm.
  • Front Panel Protection - IEC IP66 (Behind panel protection is IP20).
  • Approvals and Certification - CE, UL & Ulc
    Configurable Input
  • Thermocouple - J, K, R, S, T, B, L, & N.
  • RTD - 3 Wire PT100
  • DC Linear - 0-20/4-20mA, 0-50/10-50mV, 0-5/1-5/0-10/2-10V. Scaleable -1999 to 9999, decimal point selectable.
    Outputs & Options
  • Control & Alarm Relays - Contacts SPDT 2Amp resistive at 240V AC,
  • SSR (Solid State Relay) Drive Output > 4.2V/1K min.
  • Triac - 1 Amp @ 20-280Vac
  • Communications - 2 Wire RS485, 1200 to 9600 Baud, West ASCII (Modbus Optional).
  • Dual Setpoint (front panel or remote selection)
    Dual setpoint Module M9610 W03 must be ordered separately Cannot be used when RS485 is fitted

Additional Information

Product Category: Single Loop Controller
Dimensions and size: 96mm x 96mm x 100mm (HxWxD), 1/4 DIN
Primary Input Type: Universal (TC, RTD, DC linear mA/mV)
Other Inputs: Digital, Remote setpoint
Output Type: Relay, SSd, DC linear V or mA, Triac, 24V transmitter power supply
Max. Number of Outputs: 3
Control Type: PID, ON/OFF, Manual, Alarm, Ramp to Setpoint
Power Supply: 100–240V AC 50–60Hz, 20-48V AC 50/60 Hz, 22-65V DC
Communications: RS-485 serial (West ASCII or MODBUS®)
Panel Sealing: IP66
Certifications: CE, UL, ULC, CSA
Software Tools: Plus Series Configurator

Product Attachments

View FileWest P4100 Datasheet    Size: (323.42 KB)
View FileWest P Series Manual Concise    Size: (847.47 KB)
View FileWest P4100_P6100_P8100 Manual    Size: (6.27 MB)